Underground Construction Manual Issue 7 ... - Ergon Energy

UNDERGROUND 

CONSTRUCTION MANUAL 

PADMOUNTED SUBSTATIONS 

Back to MAIN INDEX 

Go to SECTION INDEX

CONSTRUCTION DESCRIPTION DWG CONSTRUCTION DESCRIPTION DWG 

PMF11 

A ORIGINAL ISSUE 

D 11.08.10 

E 10.01.12 

F 17.07.12 

Construction code guide - 11kV Padmounted 

substations including LV switchgear 


substations with LV switchgear and HV Switchgear 


substations foundation and site finish 


substations including LV switchgear 

5099/1 

5099/2 

5099/3 

5043/1 

Construction code guide - 22kV Padmounted 5043/2 

substations LV switchgear & HV RMU switchgear 


substation and foundations 

11kV PADMOUNTED SUBSTATION 

CONSTRUCTION 

Front entry type installation 




Front entry type location in council parklands 

Front entry type location in council parklands 

Front entry type location in residential allotments 

Front entry type - site requirement separate 

HV & LV earthing 

Front entry type on 5 x 3.5m site placement 

options 

Front entry type site preparation sloping site 

maximum cut & fill 

Front entry type site finish concrete surround 

5043/3 

5000/1 

5000/2 

5000/3 

5000/4 

5010/1 

5010/2 

5174 

5175 

5002 

5003 

5004 

Ergon Energy Corporation Ltd 

ABN 50 087 646 062 

11.08.10 

T.Borg 

Front entry type uniculvert foundation details 

retaining wall - maximum height 1.2m 


INDEX 

FILE: 5 55 5097 1 

1 

5005/1 

PMF11U Front entry type uniculvert foundation details 5005/2 

PMF11BP 

PM11 

Front entry type pier foundation details 

Front entry type pier foundation details 

Front entry type site preparation retaining 

wall construction 

Front entry type site preparation retaining 

wall construction 

Cut sloping site uniculvert foundation 

5009/1 

5009/2 

5001/1 

5001/2 

5007/1 

Cut sloping site pier foundation retaining 5007/2 

wall - maximum height 2.0m 

Filled sloping site uniculvert foundation 

retaining wall maximum height 1.2m 

Filled sloping site pier foundation retaining 

wall maximum height 2.0m 

Site preparation safety fence retaining wall 

mounting details 

Front entry type material Contract No.2004/037/T 

Front entry type with LV switchgear construction 

Contract No. 2004/037/T 

Front entry type with LV switchgear and ABB 

SafeLink RMU, 2 switch 1 fuse material 

Contract No.2004/037/T 

PM11xxxASL Front entry type with LV switchgear and ABB 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

A.Bletchly 

SafeLink RMU, 2 switch 1 fuse construction 


Front entry type schematic LV switchgear only 




UNDERGROUND DISTRIBUTION 

Dwg Sh 

5008/1 

5008/2 

5011 

5189/1 

5189/2 

5191/1 

5191/2 

5190/1 

5190/2 

F


PM11, PM11SW 

PM11xxxASD 

PM11xxxFBX 


C 08.08.05 

D 11.08.10 

E 10.01.12 


CONSTRUCTION CONT’D 

Front entry type schematic ABB SafeLink 

HV switchgear and LV switchgear 


Front entry type schematic ABB SafeLink 

HV switchgear and LV switchgear 


Front entry type material Contract QESI 30/98 

Front entry type construction Contract QESI 30/98 

Front entry type with LV switchgear and 

RMU ABB SDAF3, 2 switch 1 fuse - material 

Contract QESI 30/98 

Front entry type with LV switchgear and 

RMU ABB SDAF3, 2 switch 1 fuse - construction 




Front entry type schematic 

ABB HV switchgear and LV switchgear 



Magnefix HV switchgear and LV switchgear 








5192/1 

5192/2 

5091/1 

5091/2 

5184/1 

5184/2 

5094 

5095 

5096/1 

5096/2 

5096/3 

Front entry type with LV switchgear and 5264/1 

Schneider Electric FBX, 2 switch 1 fuse - material 

Contract No. 08088EECL 

HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

PMRF22 

11.08.10 

T.Borg 


CONSTRUCTION 

Rectangular type installation 




Rectangular type location in council parklands 

Rectangular type location in council parklands 

Rectangular type location in residential allotments 

Rectangular type - site requirement 

separate HV & LV earthing 

Rectangular type - site requirement without 

retaining wall 

Rectangular type site finish without retaining wall 

Rectangular type - schematic LV switchgear only 


INDEX 

55 5097 2 

2 

5114/1 

5114/2 

5114/3 

5114/4 

5116/1 

5116/2 

5176 

5177 

5117 

5118 

Rectangular type - material 5105/1 

PMR22, PM22SW Rectangular type - construction 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

A.Bletchly 

Front entry type with LV switchgear and 5264/2 

Schneider Electric FBX, 2 switch 1 fuse - construction 



Schneider Electric FBX HV switchgear and LV switchgear 



Schneider Electric FBX HV switchgear and LV switchgear 


Rectangular type - schematic F&G HV 

switchgear and LV switchgear 








FILE: 5 

Dwg Sh 

5265/1 

5265/2 

5105/2 

5104 

5082/1 

5082/2 

5082/3 

5082/4 

E


PMR22 



CONSTRUCTION CONT’D 

Front entry type - site preparation 

Retaining wall construction 

Front entry type - site preparation 

Retaining wall construction 

Cut sloping site - Uniculvert foundation 

Retaining wall - maximum height 1.2m 

Filled sloping site - Uniculvert foundation 

Retaining wall - maximum height 1.2m 

Rectangular type - Material 


Rectangular type - Construction 


Rectangular type - schematic 

Schneider Electric HV switchgear & LV switchgear 







5283/1 

5283/2 

5281/1 

5281/2 

5266/1 

5266/2 

5267/1 

5267/2 

5267/3 

5267/4 

Rectangular type - schematic 5272 

Schneider Electric LV switchgear only 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

17.07.12 

A.Bletchly 

T.Borg 

Rectangular 3.7m long, 800mm maximum above 

ground foundation, earthing & site finish details 












INDEX 

FILE: 5 55 5097 3 

3 

5273/1 

5273/2 

5273/3 

5274/1 

5274/2 

5274/3 

Rectangular 3.7m long, 1400mm maximum above 5275/1 












Rectangular HV & LV service platform details 




Dwg Sh 

5280/1 

5280/2 

5280/3

1 SITE 

1.1 

PADMOUNTED SUBSTATION INSTALLATION 

1.2 

General 

The site shall be to the satisfaction of Ergon Energy, including 

Stable (soil conditions) 

Flood free 

Level (topography) where possible 

Free from steep batters 

Site Size 

The minimum area required to accommodate a front entry 

Padmounted substation shall be: 

Retaining wall sites - provided retaining walls are contained 

within 3400mm width x 3000mm depth no increase in the 

12000mm width x 7200mm depth is necessary. 

1.3 Substation Orientation 

Front entry padmounted substations shall be oriented such that 

the LV and HV panels are easily accessible from the dedicated 

footpath. 


B 10.2.04 

C 7.3.08 

Along coastal areas the site must be located as far as possible 

from the shoreline and sheltered from salt spray. 

A site should not be located where impact by traffic is likely and, 

if at a truncated section of the street alignment or other non-regular 

shaped site the following shall apply: 

The front edge of the substation plinth shall be 200mm from 

and as near to parallel as possible to the R.P. Street Alignment. 

The specified rectangular size of the site shall not be reduced. 

Common earthing sites 

Level sites - 3000mm width x 2800mm depth. 

Retaining wall sites - 3400mm width x 3000mm depth. 

Separate Earthing Sites 

12000mm width x 7200mm depth. 

HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

1.4 

URD 

The developer shall provide a padmounted substation site(s) as 

required by Ergon Energy at no cost to Ergon Energy. The site shall 

be included in the road reserve, or located on freehold property. 

No padmounted substations are to be located in Trustee Reserves. 

Where the developer required the padmount to be included: 

a) In the Road Reserve:- 

The Developer shall obtain all necessary approvals from the 

Department of Transport or the Local Authority. 

b) On Freehold property (including residential or parkland):- 

The Developer shall provide Ergon Energy with a registered 

easement at no cost to Ergon Energy. 

Acceptable separation of padmount to adjacent dwellings is provided 

if the front of dwellings are set back 6.0m from the R.P. Street 

Alignment and the padmount is located as shown in drawings No. 

5174, 5010 Sheets 1 or 2. 

Developments including streets where the allowable dwelling set back 

is less than 6.0m will require padmount siting on either an alternative 

street, where the dwelling set back is 6.0m, or in Parklands. 

APPROVED 

DATE 

PASSED 

DRAWN 

3/2/03 

D. M K. c 

D. M K. 


11kV PADMOUNTED SUBSTATIONS 

FRONT ENTRY TYPE 

INSTALLATION 

FILE: 5 

55 5000 1 

5000 

Dwg Sh 

1 

C

1 SITE 

1.5 

(CONT’D) 

Commercial and Industrial or Landscaped Areas 

Whether the padmounted substation is for the sole use of that 

complex, or is required as part of the distribution network, the 

owner is required to grant Ergon Energy an easement for the 

padmounted site, access and cabling. 

Separation of 5.0m between padmount transformer LV bushings 

and the nearest room or habitable area should be provided 

where possible. 

1.6 Parklands - for other than URD 

1.7 

Acceptable separation of padmount to adjacent dwellings is 

shown in drawings No. 5010 Sheets 1 & 2. 

Cabling and Access 

Cabling Only 

Should the cabling route not be available in conjunction with 

access, a 1.0m wide cable easement is required to the front 

of the padmount. Additionally 2.0m x 3.0m (padmount site 

width) is required immediately in front to allow spreading of 

cables for entry to the padmount and also include the buried 

earth cable. 


B 

4.3.04 

C 3.7.08 

Obtain the necessary approval for an easement to accommodate 

the padmounted substation, cabling and access to site. 

Cabling and Access Requirement 

A 3.0m wide easement, or road reserve, from the front of 

the site is required for cabling and access. 

HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

2 SITE PREPARATION 

Sites shall be prepared in accordance with the included 

construction drawings. 

3 CONSTRUCTION OF RETAINING WALLS 

Retaining walls shall be constructed around the perimeter of a 

padmounted substation site where: 

A change in ground level of 300mm or more occurs within 2.0m 

of the boundary of the padmounted substation site. 

4 PADMOUNTED SUBSTATION FOUNDATION 

4.1 Uniculvert 

4.2 

APPROVED 

DATE 

PASSED 

DRAWN 

Uniculvert foundations shall not be constructed where site and 

ground conditions do not provide an even or equal bearing 

capacity for the padmounted substation, or where no HV 

switchgear is fitted and the cable is connected directly to the 

transformer HV terminals. 

Uniculvert foundations for both stable and unstable soil conditions 

shall be constructed in accordance with Drawing No. 5005. 

Concrete Piers 

Concrete piers shall be installed where the site ground conditions 

do not provide an even or equal bearing capacity for the 

padmounted substation foundation, or where no HV switchgear 

is fitted and the cable is connected directly to the transformer 

HV terminals. 

At sites where shallow rock is encountered use the uniculvert 

foundation type if applicable. 

Concrete piers shall be constructed in accordance with 

Drawing No. 5009. 

3/2/03 

D. M K. c 

D. M K. 




INSTALLATION 

FILE: 5 

55 5000 2 

5000 

Dwg Sh 

2 

C

Plinth over 

shown dashed. 

For details of 

reinforced concrete 

surround slab refer 

to drawing 5004. 

FOOTPATH 

A 

Truncate foundation 

F 

250 

to allow cable access 

into padmount. 

Use formwork. 

R.P. Street 

Alignment 

Fence refer 

drawing 5011. 

Footpath 

Ground Line 

Backfill 

600 

Min 


B 3.12.03 

C 11.07.12 

F 

F 

F 

F 

F 

F 

F 

700 

F 

F 

F F 

F 

3000 

2800 

2450 

Masonry 

block wall 

PLAN 

SECTION 

A 

F 

F 

F 

F 

F 

F 

F 

F 

F 

F 

100 

2800 

F 

F 

F 

3000 

F 

F 

3400 

Site 

Retaining wall 

foundation 

Boundary 

Natural Ground 

Line 

F 

Uniculvert 

foundation 

Weepholes 


ABN 50 087 646 062 

F 

F 

For earth rod location 

refer EARTHING: 

Drawing No. 5013 

or 5014. 

Filter material 

100mm dia conduit through 

footing for each spike. 

Trim top of conduit as req’d 

APPROVED 

DATE 

PASSED 

DRAWN 

CONCRETE STRENGTHS 

23/11/01 

Foundation 

200 series 

blockwork 

F’c Slump Aggregate Cement 

Concrete infill to 

be rounded to form 

watershed capping 

F 

F 

850 

F 

RETAINING WALL DETAIL 

NOTE: 

25MPa 

Blockwork / 

17.5MPa 

Core Filling 

N16 at 400 crs 

20 cover to 

inside face 


lap 500 at 

corners & where 

necessary 


lap 400 

C.Noel 

A.Bletchly 

T.Borg 

SL62 mesh with 

60 cover top 

50 

75 

150 

F 

F 

F 

Size (Max) Content (Min) 

300 

F 

20mm 

F 

- 

10mm 300kg/cu. m 

Site 

Boundary 

Backfill 

material 

Filter 

material 

75 cover to bottom 

Where a retaining wall greater than 1.2 metres 

high is required a Pier Foundation must be used. 

RETAINING WALL - MAXIMUM HEIGHT 1.2m 

5007 

500 


CUT SLOPING SITE - UNICULVERT FOUNDATION 

55 5007 1 

F 



FILE: 5 

Dwg Sh 

1 

1200 Max. 

250 

C

Plinth over 

shown dashed. 



surround slab Refer 

Padmounted Subs 

drawing 5004. 

FOOTPATH 

A 




Use formwork. 

R.P. Street 

Alignment 

Fence refer 

drawing 5011. 

Footpath 

Ground Line 

600 

Min 


B 3.12.03 

C 11.07.12 

F 

F 

F 

250 

Backfill 

F 

F 

F 

F 

F 

F 

F 

F 

F 

F 

700 for B1 

1200 for B2 

F 

F 

3000 

2800 

2450 

Masonry 

block wall 

SECTION 

PLAN 

A 

F 

F 

F 

F 

F 

F 

F 

F 

F 

F 

100 

2800 

Pier 

F F 

F 

F 

3000 

3400 

foundation 

Site 


foundation 

(1300 wide 

shown) 

Boundary 

Line 

Weepholes 


ABN 50 087 646 062 

F 

F 

F 

F 




or 5014. 



100mm dia conduit 

through footing for 

earth rod. Trim top 

of conduit as req’d. 

APPROVED 

DATE 

PASSED 

DRAWN 

23/11/01 


Foundation 

F’c 

25MPa 

Blockwork / 

17.5MPa 

Core Filling 

F 




200 series 

blockwork 


lap 500 at corners 

& where necessary 


B1=850 

B2=1300 

50 

20 cover to inside face 


lap 400 

C.Noel 

A.Bletchly 

T.Borg 


60 cover top 

F 

F 

F 

F 

Slump Aggregate 

F 

75 

150 

F 



300 

20mm 

10mm 

CUT SLOPING SITE - PIER FOUNDATION 


5007 

Site 

Boundary 

500 


55 5007 2 

F 

F 

F 

F 

F 

F 

F 

F 

F 

F 

F 

Cement 

- 

300kg/cu. m 

Backfill 

material 

Filter 

material 




FILE: 5 

Dwg Sh 

2 

H1=1200 (Use B1 footing width) 

250 

F 

F 

F 

F 


C

Plinth over 

shown dashed. 



surround slab refer 

to drawing 5004. 

FOOTPATH 

A 


F 

250 



Use formwork. 

R.P. Street 

Alignment 

Fence refer 

drawing 5011. 

Footpath 

Ground Line 

600 

F 

Min 

F 

Backfill 


B 3.12.03 

C 11.07.12 

F 

F 

F 

F 

F 

F 

F 

F 

700 

F 

F 

3000 

2800 

2450 

Masonry 

block wall 

SECTION 

PLAN 

A 

F 

F 

F 

F 

F 

F 

F 

F 

F 

F 

F 

100 

2800 

F 

F 

F 

F 

3000 

Uniculvert 

foundation 

F 

F 

F 

3400 

F 

Site 

Boundary 

Finished 

Site Level 


Weepholes 


Line 


ABN 50 087 646 062 




or 5014. 


foundation 



earth spike. Trim top 


APPROVED 

DATE 

PASSED 

DRAWN 


Foundation 

F 

NOTE: 

F 

F’c 

25MPa 

Blockwork / 

17.5MPa 

Core Filling 

Filter 

Backfill 

material 

material 

23/11/01 


F 

F 

850 

Slump 

75 




20 cover to 

inside face 


60 cover top 


lap 400 

C.Noel 

A.Bletchly 

T.Borg 

F 

300 

150 10mm 

F 


F 

Where a retaining wall greater than 1.2 metres 

50 

Aggregate 

20mm 

high is required a Pier Foundation must be used. 

500 

5008 

Boundary 


F 

F 


Site 

- 

300kg/cu. m 

200 series 

blockwork 

Cement 

FILLED SLOPING SITE - UNICULVERT F’DN 


55 5008 1 

F 

F 

F 


lap 500 at 


necessary 

F 

F 




FILE: 5 

Dwg Sh 

1 

250 1200 Max. 

F 

F 

F 

F 

C

Plinth over 

shown dashed. 



surround slab Refer 

Padmounted Subs 

drawing 5004. 

FOOTPATH 

A 




Use formwork. 

R.P. Street 

Alignment 

Fence refer 

250 

drawing 5011. 

Footpath 

Ground Line 

600 

F 

Min 

F 

Backfill 


B 3.12.03 

C 11.07.12 

F 

F 

F 

F 

F 

700 for B1 

1200 for B2 

F 

3000 

2800 

2450 

F F 

F 

F 

F 

F 

F 

Masonry 

block wall 

SECTION 

PLAN 

A 

F 

F 

F 

F 

F 

F 

F 

F 

F 

Pier 

F 

100 

2800 

F 

F 

F 

F 

foundation 

F 

3000 

F 

3400 

Site 

F 

F 

Boundary 

Finished 

Site Level 


Weepholes 

Natural 

shown) 

Ground Line 


ABN 50 087 646 062 




or 5014. 


foundation 

(1300 wide 





APPROVED 

DATE 

PASSED 

DRAWN 


Foundation 

Blockwork / 

17.5MPa 

Core Filling 

Backfill 

Material 



60 cover top 


lap 400 

F 

C.Noel 

23/11/01 

A.Bletchly 

T.Borg 

F 

F 

F 


25MPa 




F 

B1=850 

B2=1300 

300 

F 

75 

150 

F 

F 

50 

500 



F 

F 

F 

F 


20mm 

10mm 

- 

300kg/cu. m 

FILLED SLOPING SITE - PIER FOUNDATION 


55 5008 2 

F 

F 

F F 

F 

Site 

F 

5008 

Boundary 

200 series 

blockwork 


lap 500 at 


necessary 


20 cover to 

inside face 




FILE: 5 

Dwg Sh 

2 

F 



250 

F 

F F 

C

Galvanised 

steel posts 

Concrete surface 

must fall away 

from edge of 

steel posts 

600 MIN. INTO CONCRETE 

GALVANISED STEEL 

POST CONSTRUCTION IN 

MASONRY BLOCK WALL. 


B 7.3.08 

F 

F 

Not suitable for use at padmounted substations 

with separate LV & HV earthing 

F 

2 x M12 S/Steel 

trubolts embedded 

110mm minimum. 

(Ramset T16175SS or 

approved equivalent) 

Natural 

Ground 

Line 

F 

Earth Face 

120 0 +_ 

200 MIN. 

HARD COPY 

UNCONTROLLED 

F 

F 

F 

Fence inside 

boundary 

Aluminium 

Posts 

ALUMINIUM POST 

Earth Face 

SIDE MOUNTED CONSTRUCTION 

TO MASONRY BLOCK WALL 

FOR CUT SLOPING SITES 

F 

Natural 

Ground 

F 

Line 

(Use this construction as an alternative) 


ABN 50 087 646 062 

10mm thick aluminium 

base plate fully welded 

to aluminium post in 

accordance with AS 1657 

and AS 1665. 

APPROVED 

DATE 

PASSED 

DRAWN 

2 x M12 S/Steel 

trubolts embedded 

110mm minimum. 

(Ramset T16100SS or 

approved equivalent) 

30/5/00 

D. M K. c 

C.Lindsay 

NOTES: 

1. 

2. 

3. 

Aluminium 

Posts 

F 

F 

200 MIN. 

ALUMINIUM POST 

DECK MOUNTED CONSTRUCTION 

TO MASONRY BLOCK WALL 

A safety fence shall be constructed on retaining wall 

sloping sites where the difference between ground 

level and padmount site is 300mm or greater. 

Chain wire infill and the support cables shall be PVC 

or baked polyester coated and coloured black or green. 

All construction of safety fences to be: 

(a) 

(b) 

In accordance with AS 1657 / AS 1926 including 

latest amendments. 

Of a type where infill is between top and toe 

board / bottom rails. 



SITE PREPARATION - SAFETY FENCE 

RETAINING WALL MOUNTING DETAILS 

FILE: 5 

55 5011 1 

5011 

Dwg Sh 

F 

Watershed 

Capping 

B 1/2 DISC 

B

PADMOUNT VOLTAGE 

PMR = Rectangular Type 

EXAMPLE:- 


B 7.4.08 

Padmounted Substation 

22kV PADMOUNTED SUBSTATION (INCLUDING LV SWITCHGEAR) CONSTRUCTION CODE 

Code shown within dashed box 

appears on relevant construction 

detail drawings in this manual. 

A 

22 = 22kV 

PMR 22/5/41 

CAPACITY (kVA) 

PMR22/5/41 = Rectangular type padmounted substation, 22kV, 500kVA, 4.1m long. 

HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

3 = 315 

5 = 500 

1k = 1000 

21/1/03 

D. M K. c 

C.Lindsay 

ENCLOSURE LENGTH 


CONSTRUCTION CODE GUIDE 

INCLUDING LV SWITCHGEAR 

55 5043 1 

41 = 4.1m 

CONTRACT No. 2006/0061/T 


FILE: 5 

5043 

Dwg Sh 

1 

B

B 7.4.08 

PADMOUNT 

PMR = Rectangular Type 

EXAMPLE:- 

C 4.7.08 

D 

02.11.11 

22kV PADMOUNTED SUBSTATION WITH LV SWITCHGEAR AND F&G HV RMU CONSTRUCTION CODE 





VOLTAGE 

22 = 22kV 


3 = 315 

5 = 500 

A 

1k = 1000 

PMR 22/5/41 FGA 21 

ENCLOSURE LENGTH 

41 = 4.1m (ONLY) 

TYPE 

FGA = F&G GA...-C 

RM6 = Schneider Electric RM6 

20/12/01 



55 5043 2 

SWITCH ARRANGEMENT 

21 = 2 switchable feeder units + 1 fuse protected tee 

31 = 3 switchable feeder units + 1 fuse protected tee 

22 = 2 switchable feeder units + 2 fuse protected tees 

PMR 22/5/41 RM6 21 = Rectangular type padmounted substation, 22kV, 500kVA, 4.1m long, Schneider Electric RM6 RMU, 


with 2 switchable feeder units and 1 fuse protected tee-off unit 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

A.Bletchly 

T.Borg 


WITH LV SWITCHGEAR AND HV RMU SWITCHGEAR 

FILE: 5 

5043 

Dwg Sh 

2 

D

PADMOUNT FOUNDATION 

PMRF = Rectangular Type 

EXAMPLE:- 

B 9.4.08 




NOTE:- 


Foundation 

22kV PADMOUNTED SUBSTATION FOUNDATION & SITE FINISH CONSTRUCTION CODE 

VOLTAGE 

22 = 22kV 

1. No materials are included in constructions 


A 

PMRF 22/41/8 HL 

ENCLOSURE LENGTH HEIGHT ABOVE SERVICE PLATFORM 

21/1/03 

D. M K. c 

C.Lindsay 

Required only where foundation 

is not provided by others. 

GROUND 

8 = 800mm Max. 

14 = 1400mm Max. 

(Omit where not req"d) 



FOUNDATION AND SITE FINISH 

55 5043 3 

H = High Voltage 

L = Low Voltage 

HL = High & Low Voltage 

PMRF22/41/8HL = Rectangular type padmounted substation foundation, 22kV, 4.1m enclosure, 800mm max. above ground, 

high & low voltage service platforms. 

HARD COPY 

UNCONTROLLED 

41 = 4.1m 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 


FILE: 5 

5043 

Dwg Sh 

3 

B

B 12.3.08 

HV SWITCHGEAR SIDE LV SWITCHGEAR SIDE 

BLANK 


with F&G GA 1K1T-C RING MAIN UNIT 

(1 SWITCHABLE FEEDER UNIT & 1 FUSE PROTECTED TEE) 

and LV FUSE SWITCH 


C 26.5.11 

BLANK 

RATING 

200kVA 

BLANK 

BLANK 

xxx/400A 

xxx/400A 



ABN 50 087 646 062 


F 

23/5/01 

C.Lindsay 

BLANK 


with F&G GA 2K1TS-C RING MAIN UNIT 

(2 SWITCHABLE FEEDER UNITS & 1 FUSE PROTECTED TEE) 


APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

A. Bletchly 

xxx/400A 

RATING 

500kVA 

RECTANGULAR TYPE - SCHEMATIC 

xxx/400A 

xxx/400A 

5082 

xxx/400A 


F&G HV SWITCHGEAR AND LV SWITCHGEAR 

55 5082 1 

315kVA 


FILE: 5 

Dwg Sh 

xxx/400A 

1 

C

B 12.3.08 

HV SWITCHGEAR SIDE 





BLANK 

xxx/400A 

xxx/400A 

LV SWITCHGEAR SIDE 

F F F 


C 25.5.11 

D 20.04.12 

RATING 

315kVA 

500kVA 

xxx/400A 

xxx/400A 

xxx/400A 



ABN 50 087 646 062 






APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

22/1/03 

A. Bletchly 

C.Lindsay 




55 5082 2 

BLANK 

RATING 

315kVA 

500kVA 

xxx/400A 


FILE: 5 

xxx/400A 

xxx/400A 

5082 

xxx/400A 

Dwg Sh 

2 

xxx/400A 

D






B 8.4.08 

CONSUMERS MAINS 

ISOLATOR 

RATING 

BLANK 

xxx/630A 

F F F 


C 25.5.11 

xxx/630A 






1000kVA 1000kVA 


HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

23/5/01 

A. Bletchly 

C.Lindsay 


ISOLATOR 

RATING 


BLANK 

xxx/630A 

xxx/630A 




FILE: 5 

55 5082 3 

5082 

Dwg Sh 

3 

C

F 




(2 SWITCHABLE FEEDER UNITS & 2 FUSE PROTECTED TEE 



B 8.4.08 

C 25.5.11 


ISOLATOR 

RATING 

1000kVA 

BLANK 

xxx/630A 

HARD COPY 

UNCONTROLLED 

xxx/630A 



ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

22/1/03 

A. Bletchly 

C.Lindsay 





FILE: 5 

55 5082 4 

5082 

Dwg Sh 

4 

C

MATERIAL - PADMOUNTED SUBSTATION INCLUDING LV SWITCHGEAR 

ASSY 

537-1 

537-2 

537-3 

537-4 

537-5 

537-6 

ASSY 

554-3 

Padmounted Substation 100kVA with LV Switchgear 





DESCRIPTION 

DESCRIPTION 

MATERIAL - ABB SD SERIES HV SWITCHGEAR 

538-2 Ring Main Unit ABB, 2 Switch 1 Fuse 

ASSY 

538-1 

538-3 

538-4 

Cartridge fuse link 16A 

554-5 Cartridge fuse link 25A 

554-6 

Cartridge fuse link 31.5A 




MATERIAL - MAGNEFIX MD SERIES HV SWITCHGEAR 

DESCRIPTION 

Ring Main Unit Magnefix, 3 Switch 1 Fuse 

Ring Main Unit Magnefix, 2 Switch 1 Fuse 

Switch Fuse Unit Magnefix, 1 Switch 1 Fuse 

QTY 

1 

QTY 

100kVA 200kVA 315kVA 500kVA 750kVA 1000kVA 

1 1 1 1 1 1 

100kVA 

555-2 Cartridge fuse link 10A 3 






B 

6.10.05 

C 3.3.11 

Padmounted Substation 1000kVA with LV Board 

HARD COPY 

UNCONTROLLED 

3 

3 

1 

3 

200kVA 

1 

3 


ABN 50 087 646 062 

3 

QTY 

315kVA 

1 

3 

APPROVED 

DATE 

PASSED 

DRAWN 

3 

500kVA 

1 

3 

C. Noel 

20/10/00 

A. Bletchly 

C.Lindsay 

3 

750kVA 

1 

3 

MATERIAL - LV FUSE 

ASSY 

529-11 

NOTES: 

1. 

2. 

3. 

4. 



MATERIAL 

DESCRIPTION QTY 

Fuse link 125A din size 2 

529-13 Fuse link 200A din size 2 




5. 

55 5091 1 

HV Switchgear is supplied separately 

as required. 

5091 

3 

All Padmounted Substations are 

supplied with LV Switchgear fitted. 

Ensure correct phasing, HV switchgear 

to transformer cabling, prior to 

installation of switchgear. 

Designer to nominate LV fuse link 

current rating. 

HV fuse links are provided with 

switchgear construction. 

Assy 537-6 fitted with LV board 

transformer disconnector only 

CONTRACT No. 2004 / 037 / T 


FILE: 5 

Dwg Sh 

1 

C

Concrete 

Plinth 

Assy Selection 

538-2 and 

554-3 to 11 

or 

538-1, 3 or 4 and 

555-2 to 8 

HV SWITCHGEAR 

COMPARTMENT 

For feeder cable connection, 

Refer HV CONSTRUCTION 

drawing. No. 5051 (ABB RMU) 

or 


B 

6.10.05 

C 11.08.10 

D 3.3.11 

F 

F 

drawing. No. 5054 (Magnefix 

RMU & SFU or Transformer) 

HARD COPY 

UNCONTROLLED 

F 

TRANSFORMER 

PLAN 

LV SWITCHGEAR 

COMPARTMENT 

F 

F 

For mains distribution 

cable connection, Refer 

LV CONSTRUCTION 

drawing. No. 5209. 


ABN 50 087 646 062 


529-11 to 17 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

18/10/00 

A. Bletchly 

C.Lindsay 

SIDE VIEW 


CONSTRUCTION 

F 


537-1 to 6 

CONTRACT No. 2004 / 037 / T 

Concrete 

Plinth 


55 5091 2 

5091 

F 

F 

Construction Type 

PM11 

PM11SW 


FILE: 5 

Dwg Sh 

2 

D

HV SWITCHGEAR SIDE LV SWITCHGEAR SIDE HV SWITCHGEAR SIDE 



B 3.8.05 

C 3.3.11 

RATING 

100kVA 

125 / 400A 


with LV FUSE SWITCH ONLY 

HARD COPY 

UNCONTROLLED 

CONTRACT No. 2004 / 037 / T 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

30/1/03 

A. Bletchly 

C.Lindsay 

RATING 

200kVA 

315kVA 

500kVA 

750kVA 

1000kVA 


FRONT ENTRY TYPE - SCHEMATIC 

LV SWITCHGEAR ONLY 

xxx / 400A 




FILE: 5 

55 5094 1 

5094 

xxx / 400A 

Dwg Sh 

xxx / 630A 

BLANK 

C


TEST 

OFF 

ON 

EARTH 

FEEDER 

CABLE 


with ABB SDAF3 RING MAIN UNIT 




B 29.07.03 

C 3.8.05 

D 3.3.11 

TEST 

ON 

EARTH 

OFF 

TEST 

ON 

EARTH 

OFF 

FEEDER 

CABLE 

RATING 

100kVA 

HARD COPY 

UNCONTROLLED 


125 / 400A 


TEST 

ON 

EARTH 

OFF 

FEEDER 

CABLE 

CONTRACT No. 2004 / 037 / T 


ABN 50 087 646 062 


with ABB SDAF3 RING MAIN UNIT 



APPROVED 

DATE 

PASSED 

DRAWN 

TEST 

C. Noel 

30/1/03 

A. Bletchly 

C.Lindsay 

ON 

EARTH 

OFF 

TEST 

RATING 

200kVA 

315kVA 

500kVA 

750kVA 

1000kVA 

xxx / 400A 

1000kVA 


5095 

TRANSFORMER 

LV ISOLATOR RATING 

200kVA 

315kVA 

500kVA 

750kVA 

xxx / 400A 


55 5095 1 

ON 

EARTH 

OFF 

FEEDER 

CABLE 


xxx / 630A 

1000A 

1000A 

1000A 

2000A 

2000A 

ABB HV SWITCHGEAR AND LV SWITCHGEAR 

FILE: 5 

Dwg Sh 

BLANK 

D

HV SWITCHGEAR SIDE LV SWITCHGEAR SIDE HV SWITCHGEAR SIDE 


FEEDER 

CABLE 

FEEDER 

CABLE 


with MAGNEFIX MD451 RING MAIN UNIT 




B 3.8.05 

C 8.3.11 

RATING 

100kVA 

HARD COPY 

UNCONTROLLED 

125 / 400A 

FEEDER 

CABLE 

CONTRACT No. 2004 / 037 / T 


ABN 50 087 646 062 


with MAGNEFIX MD414 SWITCH FUSE UNIT 



APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

23/5/01 

A. Bletchly 

C.Lindsay 

RATING 

100kVA 


125 / 400A 



MAGNEFIX HV SWITCHGEAR & LV SWITCHGEAR 

FILE: 5 

55 5096 1 

5096 

Dwg Sh 

1 

C


FEEDER 

CABLE 

FEEDER 

CABLE 






B 3.8.05 

C 8.3.11 

RATING 

200kVA 

315kVA 

FEEDER 

CABLE 


with MAGNEFIX MD414 SWITCH FUSE UNIT 



500kVA 500kVA 

CONTRACT No. 2004 / 037 / T 

HARD COPY 

UNCONTROLLED 


xxx / 400A 

TRANSFORMER 


200kVA 

315kVA 

xxx / 400A 

xxx / 630A 

1000A 

1000A 

500kVA 1000A 

BLANK 


ABN 50 087 646 062 


APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

30/1/03 

A. Bletchly 

C.Lindsay 

RATING 

200kVA 

315kVA 

200kVA 

500kVA 



xxx / 400A 

TRANSFORMER 


315kVA 


5096 

xxx / 400A 


55 5096 2 

2 

xxx / 630A 

1000A 

1000A 

1000A 


FILE: 5 

Dwg Sh 

BLANK 

C


B 3.8.05 

C 8.3.11 

FEEDER FEEDER 

CABLE 

HARD COPY 

UNCONTROLLED 


CABLE 

FEEDER 

CABLE 






ABN 50 087 646 062 

RATING 

200kVA 

315kVA 

500kVA 

750kVA 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

30/1/03 

A. Bletchly 

C.Lindsay 

xxx / 400A 

xxx / 400A 

200kVA 

315kVA 

500kVA 

750kVA 

xxx / 630A 

TRANSFORMER 

BLANK 


1000A 

1000A 

1000A 

2000A 




55 5096 3 

CONTRACT No. 2004 / 037 / T 


FILE: 5 

5096 

Dwg Sh 

3 

C

EXAMPLE:- 


B 8.8.05 

C 10.01.12 

11kV PADMOUNTED SUBSTATION (INCLUDING LV SWITCHGEAR) CONSTRUCTION CODE 




PADMOUNT 

PM = Front Entry Type 


PM11/500 = Padmounted Substation, 11kV, 500kVA 

HARD COPY 

UNCONTROLLED 

A 


ABN 50 087 646 062 

PM 11/500 

VOLTAGE CAPACITY (kVA) 

11 = 11kV 

APPROVED 

DATE 

PASSED 

DRAWN 

20/12/01 

D. M K. c 

C.Lindsay 



INCLUDING LV SWITCHGEAR 

55 5099 1 

100 

315 

500 

750 

1000 


FILE: 5 

5099 

Dwg Sh 

1 

C

EXAMPLE:- 


B 

6.10.05 

C 02.11.11 

PADMOUNT 

PM = Front Entry Type 

11kV PADMOUNTED SUBSTATION WITH LV SWITCHGEAR AND HV RMU CONSTRUCTION CODE 





VOLTAGE 

11 = 11kV 

A 

PM 11/500/ASL 2S1F 


315 

500 

750 

1000 

TYPE 

ASL = ABB SafeLink 

SWITCH ARRANGEMENT 

2S1F = 2 Switchable feeder units + 1 Fuse protected Tee 

FBX = Schneider Electric FBX 

PM11/500/FBX2S1F = 11kV padmounted substation, 500 kVA Capacity, Schneider Electric FBX HV RMU with 

HARD COPY 

UNCONTROLLED 

2 switchable feeder units and 1 fuse protected tee-off unit 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

4/3/04 

A.Bletchly 

T.Borg 




WITH LV SW/GEAR AND HV RMU SW/GEAR 

FILE: 5 

55 5099 2 

5099 

Dwg Sh 

2 

C



B 12.3.08 

BLANK 

xxx/400A 



RATING 

315kVA 

500kVA 

xxx/400A 

xxx/400A 

HARD COPY 

UNCONTROLLED 

xxx/400A 

xxx/400A 



ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 


22/5/01 

D. M K. c 

C.Lindsay 


ISOLATOR 



LV SWITCHGEAR ONLY 

55 5104 1 

BLANK 

xxx/630A 

xxx/630A 



RATING 

1000kVA 


FILE: 5 

5104 

Dwg Sh 

B


ASSY DESCRIPTION 

542-3 

542-4 

542-5 

B 2.4.08 

Padmounted Substation 4.1m Long 500kVA with LV Switchgear 



513-1 Connection earth bar to cover plate 2 

QTY 

MATERIAL - PADMOUNTED SUBSTATION INCLUDING LV AND HV SWITCHGEAR 


576-1 

576-2 

576-3 

576-4 

576-5 

576-6 

576-7 

576-8 

576-9 

576-10 

556-3 

556-4 

556-7 

1 


14/2/03 

RECTANGULAR TYPE 

c MATERIAL 

D. M K. 

C.Lindsay 


ASSY DESCRIPTION QTY 




529-16 

Padmounted Substation 200kVA 4.1m Long with LV Switchgear & RMU F & G 1 Switch 1 Fuse 










Cartridge fuse link 16A - 200kVA & 315kVA transformers 

Cartridge fuse link 20A - 500kVA transformers 

Cartridge fuse link - 40A 1000kVA transformers 


Refer note 4 


1. All padmount substations are supplied fitted with either LV switchgear or LV and HV switchgear as required 

2. Padmount substations for new installations shall be 4.1m long. 

3. Designers to nominate LV fuse link current rating 

4. HV fuse links provided with the padmounted substation construction. 

Those fitted with 2 switch 2 fuse RMU are supplied with 3 fuse links to suit that transformer only. 

Designer to nominate required fuse links for the remaining fuse unit 


HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

55 5105 1 


QTY 

1 

3 

5105 

1 

3 



FILE: 5 

Dwg Sh 

B

B 2.4.08 

F 




drawing No. 5087. 



drawing No. 5044 (F & G RMU) 

or 


F 

drawing No. 5120 (Transformer) 

F 

Assy 513-1 


529-13, 14, 15, 16 or 17 

HARD COPY 

UNCONTROLLED 

F 

F 


556-3, 4 or 7 

HV 

Compartment 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

F 


29/1/03 


c CONSTRUCTION 

D. M K. 

C.Lindsay 

Assy 513-1 

Transformer 

Compartment 


55 5105 2 

F 


542-3 to 5 or 

576-1 to 10 

LV 

Compartment 

5105 


PMR22 


FILE: 5 

Dwg Sh 

2 

B

1 SITE 

B 

C 

1.1 

PADMOUNTED SUBSTATION INSTALLATION 

General 

The site shall be to the satisfaction of Ergon Energy, including 

Stable (soil conditions) 

Flood free 1.4 

Free from steep batters 

1.2 Site Size 

4.3.04 

3.7.08 

Where possible, level or gently sloping ground 

Along coastal areas the site must be located as far as possible 

from the shoreline and sheltered from salt spray. 

A site should not be located where impact by traffic is likely and, 

if at a truncated section of the street alignment or other 

non regular shaped site, the specified rectangular size 

shall not be reduced. 

The minimum area required to accommodate a rectangular type 

Padmounted substation shall be: 

Common earthing sites 

Sites without retaining walls - 4000mm width x 6000mm depth. 

Sites requiring retaining walls - assessed on an individual basis 

and to include sufficient clearance to allow, without adverse 

impact on cables, passage of underground cables on site. 

Sites requiring retaining walls should be avoided if possible. 

Note the site size shall be increased to include retaining walls 

& footings 


Separate Earthing Sites 

12000mm width x 10000mm depth. 

Sites requiring retaining walls - assessed on an individual basis, 

however, these sites should be avoided if possible. 

HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

1.3 Substation Orientation 

Except where not practicable, padmounted substations shall 

be oriented such that the LV cabinet end is facing the dedicated 

footpath. 

URD 

The developer shall provide a padmounted substation site(s) as 

required by Ergon Energy at no cost to Ergon Energy. The site shall 

be included in the road reserve, or located on freehold property. 

No padmounted substations are to be located in Trustee Reserves. 

a) In the Road Reserve:- 

The Developer shall obtain all necessary approvals from the 

Department of Transport or the Local Authority. 

b) On Freehold property (including residential or parkland):- 

The Developer shall provide Ergon Energy with a registered 

easement at no cost to Ergon Energy. 

Acceptable separation of padmount to adjacent dwellings is provided 

if the front of dwellings are set back 6.0m from the R.P. Street 

Alignment and the padmount is located as shown in drawings No. 

5176, 5116 Sheets 1 or 2. 

Developments including streets where the allowable dwelling set 

back is less than 6.0m will require padmount siting on either 

an alternative street, where the dwelling set back is 6.0m, or in 

Parklands. 

APPROVED 

DATE 

PASSED 

DRAWN 

3/2/03 

D. M K. c 

D. M K. 

c 




INSTALLATION 

FILE: 5 

55 5114 1 

5114 

Dwg Sh 

1 

C

1 SITE (CONT’D) 

B 

1.5 Commercial and Industrial or Landscaped Areas 

Whether the padmounted substation is for the sole use of that 

complex, or is required as part of the distribution network, the 

owner is required to grant Ergon Energy an easement for the 

padmounted site, access and cabling. 

Separation of 5.0m between padmount transformer LV bushings 

and the nearest room or habitable area should be provided 

where possible. 

1.6 Parklands - for other than URD 

1.7 


16.3.04 

C 3.7.08 

D 16.04.12 

Obtain the necessary approval for an easement to accommodate 

the padmounted substation, cabling and access to site. 

Acceptable separation of padmount to adjacent dwellings is 

shown in drawings No. 5116 Sheets 1 & 2. 

Cabling and Access Requirement 

Cabling and Access 

A 4.0m wide easement, or road reserve, from the front of the 

site is required for cabling and access. 

Cabling Only 

Should the cabling route not be available in conjunction with 

access, a 1.0m wide cable easement is required to the front 

of the padmount (to align with the front left side where applicable). 

Additionally 2.0m x 4.0m (padmount site width) is required 

immediately in front to allow spreading of cables for entry to the 

padmount and also include the buried earth cable. 


ABN 50 087 646 062 

2 SITE PREPARATION 

3 

2.1 Generally 

Sites shall be prepared in accordance with the included 

construction drawings. 

2.2 Filled Sites 

Sites requiring fill shall be provided with compacted fill 

in accordance with the following: 

For less than 300mm fill, Rolled or Compacted; or 

For greater than 300mm fill, Controlled. 

as defined in AS 2870. 

SLOPING SITES 

3.1 Retaining walls 

APPROVED 

DATE 

PASSED 

DRAWN 

Retaining walls shall be constructed around the perimeter of the 

padmounted substation site where the change in round level 

within the boundary of the site exceeds: 

200mm in site width 

400mm in site length or diagonally 

Retaining walls shall be: 

Constructed in 200 series concrete masonary block 

in accordance with AS/NZS 4455 

Outside the 4000mm width x 6000mm depth 

The site size shall be increased to include retaining walls, 

their footings and safety fence 

Note the retaining walls & footings must be located such that 

the cable routes within the site and in front of the site are not 

altered or restricted. 

Refer applicable TRENCHING folder drawings 

C.Noel 

3/2/03 

A.Bletchly 

T.Borg 




INSTALLATION 

FILE: 5 

55 5114 2 

5114 

Dwg Sh 

2 

D

4 PADMOUNTED SUBSTATION FOUNDATION 

B 18.11.03 

C 

4.1 Generally 


16.3.04 

D 3.7.08 

E 16.04.12 

A safety fence shall be provided on retaining wall sloping sites 

where the difference between ground level and the finished 

surface of the padmount site is 300mm or greater. 

Refer drawing No. 5011 

The developer shall provide a certified design from a 

Civil Engineer (RPEQ) for Ergon Energy’s consideration. 

No special designs for wall construction 

shall be used without the approval of Ergon Energy. 

3.2 Rural Sites Only 

For padmounted substation sites in rural developments or 

similar where large allotments are provided and a change 

in ground level of 300mm or more occurs within 2m of the 

boundary of the site a 1:4 batter slope in lieu of the retaining 

wall may be allowed at the sole discretion of Ergon Energy. 

On cut battered sites a concrete barrier kerb and channel shall 

be provided outside the 4000mm x 6000mm to ensure this area 

remains free of water, silt or similar that could require periodic 

removal or maintenances. The site size shall be extended as 

necessary to include the kerb and channel. 

At stable padmounted substation sites a foundation shall be 

constructed in accordance with the following: 

4.1m long substation, base 800mm maximum above ground 

- refer Drawing No. 5280. 

4.1m long substation, base 1400mm maximum above ground 

- refer Drawing No. 5276. 


ABN 50 087 646 062 

At coastal locations in FN Region, unless agreed otherwise by 

Ergon Energy, foundations shall be constructed to ensure the 

base of a padmounted substation is above storm surge level 

for that location. e.g. In Cairns city, minimum level to the base 

of a substation shall be AHD 3.6m 

(R.L. 103.600 Cairns City Council Datum 1976). 

LV and/or HV Service Platforms shall be provided where the 

distance above site surface to top of blockwork at access 

doors exceeds 400mm. 

4.2 Unstable Sites 

Where sites are very unstable, and conventional foundation 

construction techniques as described in this document cannot 

be applied, a special design shall be required. 

In such circumstances, the developer shall obtain a certified 

design from a Civil Engineer (RPEQ) for Ergon Energy’s 

consideration. No special designs for padmounted substation 

foundation construction shall be used without the approval of 

Ergon Energy. 

5 BACKFILLING AND FINAL SITE FINISH 

Earthing, conduits and cables shall be installed prior to final site finish. 

All backfill of the site must be compacted before final site finish in 

accordance with the applicable drawing. 

5.1 Common Earthing Sites 

APPROVED 

DATE 

PASSED 

DRAWN 

The substation 6.0m x 4.0m site surface is to be finished with 

interlocking masonary paving (Besser "Interlock" or equivalent 

approved by Ergon Energy) installed in accordance with the 

manufacturer’s installation specification. A concrete slab shall 

not be provided. 

C.Noel 

3/2/03 

A.Bletchly 

T.Borg 




INSTALLATION 

FILE: 5 

55 5114 3 

5114 

Dwg Sh 

3 

E

6 

5.2 Separate Earthing Sites 

ADDITIONAL REQUIREMENTS 

6.1 


B 18.6.08 

In addition to the requirements of Clause 5.1 the remaining 

ground surface between the barrier kerb (around the paving) 

and site extremities shall be finished in accordance with 


Commercial and Industrial Installation 

The preferred location of padmounted substation sites at 

commercial and industrial developments is at the real property 

street alignment with the LV cabinet end of the padmounted 

substation facing the adjoining footpath. 

Should the padmounted substation site be located elsewhere 

on the development, clear all weather access to the site shall 

be provided for personnel and heavy equipment at all times. 

Easy access for a mobile crane must be available for the 

purpose of installation or replacement. 

Ergon Energy cable conduits for the development may be 

placed in the substation site and shall pass down the sides 

of the foundation. No conduits shall pass through or under 

the foundation. 

Refer Clause 5 for Backfilling and Final Site Finish. 

HARD COPY 

UNCONTROLLED 


ABN 50 087 646 062 

6.2 Padmounted Substations in Landscaped Areas 

When planting vegetation in landscaped areas and gardens, 

ensure vegetation does not encroach on the padmounted 

substation site. Take into consideration the fully matured size 

of vegetation to allow continuing access to the site. 

Ergon Energy cable conduits for the development may be 

placed in the substation site and shall pass down the sides 

of the foundation. No conduits shall pass through or under 

the foundation. 

Refer Clause 5 for Backfilling and Final Site Finish. 

6.3 Padmounted Substations Installation in Parklands 

Where the padmounted substation is located in Council 

Parklands, the installation shall be in accordance with the 

requirements of drawing No. 5116 Sheets 1 or 2. 

7 SPACING BETWEEN PADMOUNTED SUBSTATION AND 

APPROVED 

DATE 

PASSED 

DRAWN 

OTHER METAL OBJECTS - SEPARATE EARTHING SITES 

No buildings/residences, fences, including their foundations, LV 

switchboard earths, or metalic objects are permitted within the 

clearance zone around the padmount. 

Clearance to Telstra assets shall be as noted on EARTHING 

drawing No. 5125 Sheet 1. 

16/3/04 

D. M K. c 

D. M K. 




INSTALLATION 

FILE: 5 

55 5114 4 

5114 

Dwg Sh 

4 

B

Site 

A _ 

Boundary 

Ground 

Line 

F 

F 


B 4.3.08 

F 

6000 Min. 

PLAN 

Cabinet 

SECTION A 

_ 

HARD COPY 

UNCONTROLLED 

F 

800 

F 

F 

1150 

F 

F 


ABN 50 087 646 062 

F 

F 

FOOTPATH 

4000 Min. 

F 

F 

R.P.Street 

Alignment 

APPROVED 

DATE 

PASSED 

DRAWN 

29/1/03 

D. M K. c 

C.Lindsay 

NOTES: 

1. 

2. 

Refer drawing No. 5114 Clause 1 for general site 

requirements. 

Refer drawing No. 5114 clauses for sloping 

site requirements 

3. No services other than the Ergon Energy’s 

electric cables shall pass through this 

padmounted substation site. 

4. Clear access to the padmounted substation 

shall be maintained for Ergon Energy’s 

personnel and heavy equipment. 

5. Mature landscaping (including trees, sprinklers 

etc) shall not encroach onto the padmounted 

substation site. 

FOR SEPARATE HV & LV EARTHING SITES, 

SIZE AND OTHER REQUIREMENTS. 

REFER DRAWING No. 5177. 



RECTANGULAR TYPE - SITE REQUIREMENT 

WITHOUT RETAINING WALL 

FILE: 5 

55 5117 1 

5117 

Dwg Sh 

B

Site 

B 4.3.04 

C 4.5.08 

800 

F 

F 

Finished 

Ground 

Line 

A _ 

Boundary 

F 

F 


F 

300 Min 

F 

F 

6000 

H.V. L.V. 

Paved Area 

Refer note 3 

PLAN 

F 

Cabinet 

SECTION A 

_ 

HARD COPY 

UNCONTROLLED 

F 

F 

Service Platform 

Refer note 4 

1150 

F 

F 


ABN 50 087 646 062 

F 

F 

FOOTPATH 

4000 

F 

F 

R.P.Street 

Alignment 

Base of 

substation 

Refer note 2 

4/2/03 

D. M K. c 

C.Lindsay 

NOTES: 

1. 

Foundation & Duct Covers 

Refer note 1 

APPROVED 

DATE 

PASSED 

DRAWN 

2. 

3. 

4. 

For foundation, earthing, site finish and cover 

plate details: 

4.1m long substation, base 800mm maximum 

above ground. Refer drawing No. 775498. 

4.1m long substation, base 1400mm maximum 

above ground. Refer drawing No. 775500. 

At coastal locations in FN region, unless agreed 

otherwise by Ergon Energy, the base of substation 

is to be above storm surge level for that location. 

e.g. in Cairns City ONLY = AHD 3.6m 

(R.L. 103.600 Cairns City Council Datum 1976) 

The padmounted substation site shall be 

paved. Refer drawing No. 5114. 

Where the distance above paving to the 

base of substation at HV and/or LV cabinet 

access doors exceeds 400mm, provide 

service platform/s and access ladder/s. 

Refer drawing No. 775501. 


RECTANGULAR TYPE - SITE FINISH 

WITHOUT RETAINING WALL 

55 5118 1 

5118 


PMRF22 


FILE: 5 

Dwg Sh 

C

MATERIAL - PADMOUNTED SUBSTATION 


563-3 Padmounted Substation 315kVA with LV Switchgear & Ring Main Unit ABB, SDAF3, 2 Switch 1 Fuse 




554-6 

554-8 

554-9 

554-11 


ASSY 

529-11 








Cartridge fuse link 31.5A (to suit 315kVA padmounted substation) 

Cartridge fuse link 50A (to suit 500kVA padmounted substation) 



B 6.10.05 HARD COPY 

C 3.3.11 

UNCONTROLLED 

3 


ABN 50 087 646 062 

NOTES: 

1. 

2. 

APPROVED 

DATE 

PASSED 

DRAWN 

All Padmounted Substations are supplied with LV Switchgear 

and Ring Main Unit ABB SDAF3, 2 switch 1 fuse fitted. 

Designer to nominate LV fuse link current rating. 

HV fuse links are provided with switchgear construction. 

C. Noel 

15/3/04 

A. Bletchly 

C.Lindsay 


55 5184 1 

1 

3 

CONTRACT No. 2004 / 037 / T 


FRONT ENTRY TYPE WITH LV SWITCHGEAR AND 

RMU ABB SDAF3 2 SWITCH 1 FUSE - MATERIAL 

FILE: 5 

5184 

Dwg Sh 

1 

C

Concrete 

Plinth 


554-6 to 11 


B 6.10.05 

C 11.08.10 

D 3.3.11 

F 

HV SWITCHGEAR 

COMPARTMENT 

F 



drawing No. 5051 (ABB RMU) 

HARD COPY 

UNCONTROLLED 

F 

TRANSFORMER 

PLAN 

LV SWITCHGEAR 

COMPARTMENT 

F 

F 


529-11 to 17 

For mains distribution cable connection, 

Refer LV CONSTRUCTION 



ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

9/3/04 

A. Bletchly 

C.Lindsay 

F 


563-3 to 6 

SIDE VIEW 

CONTRACT No. 2004 / 037 / T 

Concrete 

Plinth 


55 5184 2 

5184 

F 

F 



PM11xxxASD 


RMU ABB SDAF 3, 2 SWITCH 1 FUSE - CONSTRUCTION 

FILE: 5 

Dwg Sh 

2 

D

Sub-Station & 

Transformer 

Lifting Point 


B 11.08.10 

F 

Concrete Plinth 

F 

TRANSFORMER 

HV SWITCHGEAR LV SWITCHGEAR 

NOT APPLICABLE 

PLAN 

HARD COPY 

UNCONTROLLED 

F 

F 

F 

F 

COMPARTMENT 

Transformer 

Lifting Point 

Sub-Station 

Lifting Point 


529-11 to 17 





ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

4/8/05 

D. M K. c 

C.Lindsay 

Transport Tie Down 

Point places 

F 

SIDE VIEW 



F 

Concrete 

Plinth 



FRONT ENTRY TYPE WITH LV SWITCHGEAR 

CONSTRUCTION 

FILE: 5 

55 5189 2 

F 


565-3 to 6 

5189 

F 

Dwg Sh 

PM11 

2 

F 

B

Sub-Station & 

Transformer 

Lifting Point 


555-5 to 10 


B 11.08.10 

F 


HV SWITCHGEAR 

COMPARTMENT 

F 



drawing No. 5206 or 5207 

(ABB SafeLink RMU) 

F 

F 

TRANSFORMER 

PLAN 

HARD COPY 

UNCONTROLLED 

LV SWITCHGEAR 

COMPARTMENT 

F 

F 

F 

F 

Transformer 

Lifting Point 

Sub-Station 

Lifting Point 


529-11 to 17 





ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

4/8/05 

D. M K. c 

C.Lindsay 


Point places 

F 

SIDE VIEW 


F 

Concrete 

Plinth 



PM11xxxASL 


ABB SAFELINK RMU, 2 SW. 1 FUSE - CONSTRUCTION 

FILE: 5 

55 5191 2 

F 


566-3 to 6 


5191 

F 

Dwg Sh 

2 

F 

B


FEEDER 

CABLE 

NOTE: 

FEEDER 

CABLE 

Alternator connection point provided on LV Bus Bars. 


B 8.3.11 

C 30.12.11 

RATING 

315kVA 

500kVA 

HARD COPY 

UNCONTROLLED 


xxx / 630A 

xxx / 400A 

xxx / 400A 

xxx / 400A 


FEEDER 

CABLE 

NOTE: 

C.Lindsay 

FEEDER 

CABLE 


with ABB SafeLink RING MAIN UNIT 


and LV FUSE SWITCHES 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

3 x Right angle adaptor brackets with bolts etc. 

RATING 


to connect to LV busbars are supplied in plastic bag. 

Brackets will accept 3 x 300mm† cables per phase. 


C. Noel 

14/12/05 

A. Bletchly 



ABB SAFELINK HV SWITCHGEAR & LV SWITCHGEAR 

55 5192 1 

750kVA 

xxx / 630A 

5192 

xxx / 630A 

xxx / 630A 

1 

xxx / 630A 



FILE: 5 

Dwg Sh 

C


FEEDER 

CABLE 

NOTE: 

FEEDER 

CABLE 


RATING 






B 8.3.11 

C 30.12.11 

1000kVA 

HARD COPY 

UNCONTROLLED 

SPARE 

SPARE 

SPARE 

SPARE 


with ABB SafeLink RING MAIN UNIT 


and LV DISCONNECTOR 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

4/8/05 

A. Bletchly 

C.Lindsay 



ABB SAFELINK HV SWITCHGEAR & LV SWITCHGEAR 

55 5192 2 

CONTRACT No. 2004 / 037 / T 


FILE: 5 

5192 

Dwg Sh 

2 

C

MATERIAL - PADMOUNTED SUBSTATION 


587-3 

587-4 

587-5 

587-6 

555-5 

555-7 

555-9 

555-10 

ASSY 

529-11 





MATERIAL - LV FUSE - EACH CIRCUIT 









Padmounted Substation 315kVA with LV Switchgear & Schneider Electric FBX, 2 Switch 1 Fuse 




3 

HARD COPY 

UNCONTROLLED 

NOTES: 

1. 

2. 


ABN 50 087 646 062 

All Padmounted Substations are supplied with LV Switchgear 

and Ring Main Unit fitted - Schneider Electric FBX, 2 switch 1 fuse. 

Designer to nominate LV fuse link current rating. 

HV fuse links are provided in construction. 

3. All LV fuse - switch- disconnector bases are 630A rated. 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

15.11.11 

A.Bletchly 

T.Borg 


55 5264 1 

1 

3 

CONTRACT No. 08088EECL 



SCHNEIDER ELECTRIC FBX RMU, 2 SW. 1 FUSE - MATERIAL 

FILE: 5 

5264 

Dwg Sh 

1

Sub-Station & 

Transformer 

Lifting Point 


555-5 to 10 


F 


HV SWITCHGEAR 

COMPARTMENT 

F 



drawing No. 5270 

(FBX RMU) 

F 

F 

TRANSFORMER 

PLAN 

HARD COPY 

UNCONTROLLED 

LV SWITCHGEAR 

COMPARTMENT 

F 

F 

F 

F 

Transformer 

Lifting Point 

Sub-Station 

Lifting Point 


529-11 to 17 





ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

15.11.11 

A.Bletchly 

T.Borg 


Point places 

F 

SIDE VIEW 



Concrete 

Plinth 



PM11xxxFBX 


55 5264 2 

F 


587-3 to 6 

F 

SCHNEIDER ELECTRIC FBX, 2 SW. 1 FUSE - CONSTRUCTION 

FILE: 5 

5264 

F 

Dwg Sh 

2 

F


FEEDER 

CABLE 

NOTE: 

RATING 

315kVA 

500kVA 


xxx / 400A 


F F 

FEEDER 

xxx / 400A 

xxx / 400A 

CABLE 

NOTE: 

RATING 


Alternator connection point provided on LV Bus Bars. Alternator connection point provided on LV Bus Bars. 


B 

28.06.12 

FEEDER 

CABLE 

xxx / 630A 





750kVA 

with SCHNEIDER ELECTRIC FBX RING MAIN UNIT 


and LV FUSE SWITCHES 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

15.11.11 

A. Bletchly 

T.Borg 

FEEDER 

CABLE 



SCHNEIDER ELECTRIC FBX HV SWITCHGEAR & LV SWITCHGEAR 

55 5265 1 

xxx / 630A 

5265 

xxx / 630A 

xxx / 630A 

1 

xxx / 630A 



FILE: 5 

Dwg Sh 

B


FEEDER 

CABLE 

NOTE: 


RATING 






B 

28.06.12 

F 

FEEDER 

CABLE 

1000kVA 

SPARE 

SPARE 

SPARE 

SPARE 


with SCHNEIDER ELECTRIC FBX RING MAIN UNIT 


and LV DISCONNECTOR 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

16.11.11 

A. Bletchly 

T.Borg 



SCHNEIDER ELECTRIC FBX HV SWITCHGEAR & LV SWITCHGEAR 

55 5265 2 



FILE: 5 

5265 

Dwg Sh 

2 

B



542-3 

542-4 

542-5 





QTY 

MATERIAL - PADMOUNTED SUBSTATION INCLUDING LV AND HV SWITCHGEAR 


590-1 

590-2 

590-3 

590-4 

590-5 

590-6 

590-7 

590-8 

590-9 

590-10 

556-3 

556-4 

556-7 

Cartridge fuse link 16A - 200kVA & 315kVA transformers 

Cartridge fuse link 20A - 500kVA transformers 

Cartridge fuse link - 40A 1000kVA transformers 

1 

Refer note 4 

16.11.11 






529-16 


1. All padmount substations are supplied fitted with either LV switchgear or LV and HV switchgear as required 

2. Padmount substations for new installations shall be 4.1m long. 

3. Designers to nominate LV fuse link current rating 

4. HV fuse links provided with the padmounted substation construction. 

Those fitted with 2 switch 2 fuse RMU are supplied with 3 fuse links to suit that transformer only. 

Designer to nominate required fuse links for the remaining fuse unit 

5. All LV fuse - switch - disconnectors bases are 630A rated. 


Padmounted Substation 200kVA 4.1m Long with LV Switchgear & RM6 1 Switch 1 Fuse 











ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

A.Bletchly 

T.Borg 




MATERIAL 


QTY 

1 

3 

55 5266 1 

5266 

1 

3 



FILE: 5 

Dwg Sh

F 





or 


F 

F 

Assy 513-1 




drawing No. 5279 (RM6 RMU) 

drawing No. 5120 (Transformer) 

529-13, 14, 15, 16 or 17 

F 

F 


556-3, 4 or 7 

HV 

Compartment 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

C.Noel 

16.11.11 

A.Bletchly 

T.Borg 

Assy 513-1 

Transformer 

Compartment 




CONSTRUCTION 

55 5266 2 

F 


542-3 to 5 or 

590-1 to 10 

LV 

Compartment 

5266 


PMR22 


FILE: 5 

Dwg Sh 

2


BLANK 

BLANK 


with SCHNEIDER ELECTRIC RM6 NE-Q1 RING MAIN UNIT 




F 

RATING 

200kVA 

BLANK 

xxx/400A 

xxx/400A 

BLANK 



ABN 50 087 646 062 


02.04.12 

F 


with SCHNEIDER ELECTRIC RM6 NE-1Q1 RING MAIN UNIT 



APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

A. Bletchly 

T.Borg 

xxx/400A 

RATING 

315kVA 

500kVA 


xxx/400A 

xxx/400A 


SCHNEIDER ELECTRIC HV SWITCHGEAR AND LV SWITCHGEAR 

55 5267 1 

xxx/400A 


FILE: 5 

5267 

Dwg Sh 

xxx/400A 

1 

BLANK


F 

xxx/400A 

xxx/400A 







xxx/400A 

RATING 

315kVA 

500kVA 

xxx/400A 

xxx/400A 

BLANK 



ABN 50 087 646 062 


F 





APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

RATING 

315kVA 

500kVA 


02.04.12 


A. Bletchly 

T.Borg 

55 5267 2 

xxx/400A 

xxx/400A 


xxx/400A 


FILE: 5 

5267 

xxx/400A 

Dwg Sh 

2 

xxx/400A 

BLANK



ISOLATOR 

RATING 

xxx/630A 

xxx/630A 

BLANK 

F F 







1000kVA 1000kVA 



ABN 50 087 646 062 

02.04.12 


ISOLATOR 





APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

A. Bletchly 

T.Borg 

RATING 



xxx/630A 

xxx/630A 



FILE: 5 

55 5267 3 

5267 

BLANK 

Dwg Sh 

3


F 


ISOLATOR 


with SCHNEIDER ELECTRIC RM6 NE-Q1Q1 RING MAIN UNIT 

(2 SWITCHABLE FEEDER UNITS & 2 FUSE PROTECTED TEE 



RATING 

1000kVA 

xxx/630A 

xxx/630A 

BLANK 



ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

02.04.12 

A. Bletchly 

T.Borg 





FILE: 5 

55 5267 4 

5267 

Dwg Sh 

4



xxx/400A 

xxx/400A 


Schneider Electric with LV FUSE SWITCH ONLY 

RATING 

315kVA 

500kVA 

xxx/400A 

xxx/400A 

xxx/400A 

BLANK 



ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 


C.Noel 


ISOLATOR 


Schneider Electric with LV FUSE SWITCH ONLY 

RATING 

1000kVA 


02.04.12 


A.Bletchly 

T.Borg 

55 5272 1 

xxx/630A 


xxx/630A 

SCHNEIDER ELECTRIC LV SWITCHGEAR ONLY 

FILE: 5 

BLANK 

5272 

Dwg Sh

1 CONSTRUCTION CO-ORDINATION 

Co-ordination is required during foundation construction and finish of the 

Padmounted Substation site to ensure installation of conduit, earthing and sand bedding under paving. Terminate top reinforcement bar each side 

(where required) service platforms. The Civil Service Provider is 

responsible for co-ordination of works, notifying Ergon Energy or other 

Service Provider(s), as required. 

2 SERVICE PLATFORMS 

Where the distance above paving to the top of blockwork at HV and/or 

LV cabinet access doors exceeds 400mm, provide service platform(s) 

and access ladder(s). 

Refer PADMOUNTED SUBSTATIONS dwg No. 5280 for details. 

3 CONCRETE 

(a) All concrete work shall be in accordance with AS 3600 & AS 2870. 

(b) Concrete for footings and slabs shall be grade N20 to AS 3600. 

(c) Minimum cover to reinforcement - 40mm. 

4 CABLE CONDUITS 

Refer Underground Construction Manual TRENCHING: 

Drawing 5142 for HV and LV conduit locations. 

5 EARTHING CABLE PROTECTION CONDUITS 

Provide 25 dia UPVC conduit at earth penetrations through 

50mm thick unreinforced concrete slab. 



ABN 50 087 646 062 

6 

7 

8 

DRAINAGE SLOTS 

Provide approx. 5mm wide slots down to finished ground level to drain 

of slot. On flat sites provide slots at 2m max. spacing on all sides and on 

sloping sites at 2m max. spacing on ’down hill’ sides. 

MASONRY BLOCKWORK 

(a) Concrete blocks shall be grade 15 in accordance with AS2733 

and AS3700. 

(b) Mortar shall be class M3 in accordance with AS 3700. 

(c) Grout shall be 20MPa at 28 days - 10mm maximum aggregate size. 

(d) Concrete masonry material and workmanship shall comply with 

AS 3700. 

(e) Masonry blocks shall be 200 series and comply with AS/NZS 4455. 

(f) All cores containing reinforcement shall be grout filled. Provide an 

opening in bottom course to permit clean out of cell space. 

(g) Vertical reinforcement to block walls shall be 1/Y12 at corners, 

beside openings and at 1200mm max. centres. 

(h) Reinforce single course bond beam at top of wall with 2/Y12 bars 

horizontally. 

ALUMINIUM COVER PLATES & SUPPORT ANGLES 

Provide 3mm marine grade Aluminium cover plates fitted to Aluminium 

support Lat 

(2) openings in blockwork. Obtain final dimensions on site. 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 



RECTANGULAR 3.7m LONG, 800mm MAXIMUM ABOVE 

GROUND FOUNDATION, EARTHING & SITE FINISH DETAILS 

FILE: 5 

Dwg 5273 Sh1 

55 5273 1


RP Boundary 

A 

F 

4000 

F 

RP Boundary 

F 

800 

F 

F 

1390 

F 

F 

1390 

F 

F 

300 

F 

FF 

F 190 1010 

F 

F 

300 

F 

190 F 

RP Boundary 

F 

F 

Barrier Kerb 

1060 

Besser "Interlock" Pavers 

F 

F 

50 

F 

F 

F 190 

F 

F 

F 

F 

340 F 

1010 

Barrier Kerb 

F 

100 

B 

C 

F 

890 

F 

F 

F150 

190 

F 

F 

6000 

3790 

Barrier Kerb 

HV Service Platform (if required) 

Refer Note 2 

Barrier Kerb 

PLAN 


ABN 50 087 646 062 

1610 

200 Series Masonary Blocks 

F 

F 

190 

Drainage SlotF 

Refer Note 6 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

C. Noel 

10.04.12 

C 

A. Bletchly 

T.Borg 

F 

F 

Barrier Kerb 

F 

600 F 

F 

250 

F 

600 

50 

F 

F 

F 

F 

F 

F 

F F 

50 

F 

100 

F 

100 

50 

F 

340 

F 

340 F 

LV Service Platform (if required) 

Refer Note 2 

F 

F 

550 

F 

1800 

1150 

F 

F 

F 

Barrier Kerb 

F 

F 

300 

F 

F 

FOOTPATH 

R.P.Street 

Alignment 

Earthing 





FILE: 5 

Dwg 5273 Sh2 

55 5273 2

150 F 

Earthing 


F 

F 

300 Min 

F 

F 

F 

200 series Bond Beam 

2/N12 bars horizontally 

F 

F 

150mm thick concrete slab ( Grade N20 ) 

placed centrally 

Cable Conduits 

Refer Note 4 

F 

F 

25 

F 

F 

N12 bars Vertically 

reinforced with one layer SL72 mesh 

SECTION 

A 

Cable conduit omitted from view 

M10 Galv. Masonary Anchors 

@ 400 max crs. 

F 

75 x 50 x 6 Al.L 

Refer Note 8 F 20 

F 

F 

F 

20 

F 

25dia Earthing Protection 

Conduit. Refer Note 5. 

F 

F 

F 

F 

F F 

F45 

40 

F 

5 

F 

F 

F 

35 

F 

20 

F 

F 

F 

35 

F 

F 

50 

F 

3mm Alum Cover P L 

Refer Note 8 

800 Max 

200 Min. 

Earthing 

Barrier Kerb 

50mm thick unreinforced concrete 

Vapour Barrier 

Orange Caution Tape 

Earthing. Refer Underground Construction Manual 

EARTHING Dwg 5123 Common Earth, 5125 Seperate Earth. 

F 

F 

D 

F 

F 

Cover Plate 

SECTION C 

VIEW 

SCALE 1:10 SCALE 1:10 


ABN 50 087 646 062 

10 thick x 50mm dia Backing Plate 

Stitch weld 

Drill & tap M12 (2 places) for lifting holes 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

10.04.12 

F 

F 

F 

A. Bletchly 

T.Borg 

F 

100 

F 

F 

250 

F 

F 

500 

F 

F 

F 

F 

14 dia hole for 

Earth Connection 

F 

F 

F 

D 

Compacted, well graded, 

course bedding sand. 

F 

150 

F 

F 

F 


laid in accordance with 

manufacturers specification 

F 

Min Fal 1 in 50 F 

F 

40mm Min. levelling layer 

of compacted, well graded, 


25 

5 

F F 

F 

SECTION 

B 


6 Thick x 25mm dia Backing Plate 

Stitch weld 

Drill & tap for M10 SS ’D’ Head Bolts 

200 

55 5273 3 

F 

F 

50 

F 

F 

85 

F 

400 max.crs. 

F 

5273 

F 

F 

2/N12 Bars 

Min 600 Lap, 40 Cover 

F 

F 

F150 


F 

Barrier Kerb 

F 

100 200 

F 

Earthing 

F 

F 

Cable Trench 


3 

Natural Surface 



FILE: 5 

Dwg Sh




3 CONCRETE 










7 

8 












ABN 50 087 646 062 

6 






and AS3700. 




AS 3700. 






(h) Reinforce single course bond beam at top of wall with 2/Y12 

bars horizontally. 



support Lat 


APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 





FILE: 5 

Dwg 5274 Sh1 

55 5274 1


RP Boundary 

A 

F 

4000 

F 

RP Boundary 

F 

800 

F 

F 

1390 

F 

F 

300 

F 

F 

F 190 1010 

F 

F 

300 

F 

190 F 

RP Boundary 

F 

F 

Barrier Kerb 

660 

F 

200 

F 

F 

F 

F 190 

F 

F 

F 

490 F 


F 

F 

100 

1410 

B 

C 

Barrier Kerb 

750 F 

F 

F 

F150 

190 


Refer Note 2 


F 

ABN 50 087 646 062 

F 

6000 

4190 

Barrier Kerb 

Barrier Kerb 

PLAN 

1610 


Drainage Slot 

Refer Note 6 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

C. Noel 

10.04.12 

A. Bletchly 

F 

T.Borg 

F 

190 

C 

F 

F 

F 

Barrier Kerb 

F 

600 F 

F 

250 

F 

F 

F 

F 

F 

50 

F 

50 

F 

F 

F 

550 

F 

1800 


Refer Note 2 

1150 


Barrier Kerb 



FILE: 5 

600 

50 F 

F 

F 

F 

100 

F 

100 

340 

F 

F 

340 

Dwg 5274 Sh2 

55 5274 2 

F 

F 

F 

F 

F 

300 

F 

F 

FOOTPATH 

R.P.Street 

Alignment 

Earthing 

UNDERGROUND DISTRIBUTION


F 

150 F 

F 

300 Min 

F 

Earthing 

F 

F 

F 

200 Series Bond Beam 

2/N12 bars Horizontally 




F 


Refer Note 4 

F 

F 

SECTION 



25 

F 

F 

F 

75 x 50 x 6 Al.L 


F 

A 


F 

F 

20 

C 

F 



SECTION 


F 

F 

F 

F 

F F 

F45 

40 

F 

5 

F 

F 

F 

35 

F 

20 

F 

F 

F 

35 

F 

F 

50 

F 

3mm Alum Cover P L 

Refer Note 8 

F 

F 

F 

Earthing 

Barrier Kerb 

800 Max 

200 Min. 

50mm thick unreinforced concrete 





D 

F 

Cover Plate 



ABN 50 087 646 062 


Stitch weld 


APPROVED 

DATE 

PASSED 

DRAWN 

F 

100 

F 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 

F 

F 

F 

14 dia Hole for 


VIEW 

F 

D 

F 

F 

F 

F 

F 

150 

F 

250 

F 

F 

F 



F 

500 

F 

F 

F 

F 

25 

F F 

5 

F 

50 

F 

F 

F 

85 

F 

400 max.crs. 




55 5274 3 






Stitch weld 


200 

F 

F 




SECTION 

B 


F 

5274 

F 

F 

2/N12 Bars 


F 

F 

F150 

F 

3 

Barrier Kerb 

F 

100 200 

F 

Earthing 

F 

F 

Cable Trench 


FILE: 5 

Dwg Sh 

Natural Surface




3 CONCRETE 










7 

8 












ABN 50 087 646 062 

6 






and AS3700. 




AS 3700. 










support Lat 


APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 





FILE: 5 

Dwg 5275 Sh1 

55 5275 1


RP Boundary 

A 

F 

4000 

F 

RP Boundary 

F 

800 

F 

F 

1390 

F 

F 

1390 

F 

F 

300 

F 

F 

F 190 1010 

F 

F 

300 

F 

190 F 

RP Boundary 

F 

F 

Barrier Kerb 

1060 


F 

F 

50 

F 

F 

F 190 

F 

F 

F 

F 

340 F 

Barrier Kerb 

F 

100 

B 

1010 

C 

F 

890 

F 

F 

F150 

190 

F 

F 

6000 

3790 

Barrier Kerb 


Refer Note 2 

Barrier Kerb 

PLAN 


ABN 50 087 646 062 

1610 


Drainage Slot 

Refer Note 6 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

F 

F 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 

190 

C 

F 

F 

F 

Barrier Kerb 

F 

600 F 

F 

250 

F 

600 

50 F 

F 

F 

F 

F 

F 

F 

50 

F 

100 

F 

100 

F 

50 

F 

340 

F 

340 F 

F 

F 

550 

F 

1800 


Refer Note 2 

1150 


F 

F 

F 

Barrier Kerb 

F 

F 

300 



FILE: 5 

Dwg 5275 Sh2 

55 5275 2 

F 

F 

FOOTPATH 

R.P.Street 

Alignment 

Earthing 


200 series Bond Beam 

2/N12 bars horizontally 

Earthing 

150 F 

F 


F 

F 

F 

F 


F 




SECTION 

A 


F 


Refer Note 4 



25 

75 x 50 x 6 Al.L 


F 

F 

F 

20 

C 

F 

F 

40 

5 

F 

F 

F 

35 

20 

FF 

35 

FF 

FF 

F 

SCALE 1:10 

F 



SECTION 

F 

F 

200 Min. 

F45 

FF 

F 

50 

F 

3mm Alum L Cover PL 

Refer Note 8 

F 

F 

D 

Barrier Kerb 

Cover Plate 

F 

F 

100 

14 dia hole for 


F 


Stitch weld 


VIEW 

F 

D 

F 

SCALE 1:10 

F 

F 

F 


Stitch weld 


200 

150 

F 


F 

F 

F 

F 

25 

F F 

5 

F 

50 

F 

F 

F 

85 

400 max.crs. 

(typical) 

F 

F F 

F F 

F150 

F 

Barrier Kerb 

100 200 

FF 

F F 





1400 Max 

ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

F 

F 

Earthing 

FF 250 

500 F 

F 

F 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 

50mm thick 

unreinforced concrete 


F 

F 






F 




SECTION 

B 



F 

F 

F 

F 

F 

Earthing 

F 

F 

Cable Trench 

Natural Surface 



FILE: 5 

Dwg 5275 Sh3 

55 5275 3 

2/N12 Bars 






3 CONCRETE 










7 

8 












ABN 50 087 646 062 

6 






and AS3700. 




AS 3700. 










support Lat 


APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 





FILE: 5 

Dwg 5276 Sh1 

55 5276 1


RP Boundary 

A 

F 

4000 

F 

RP Boundary 

F 

800 

F 

F 

1390 

F 

F 

1390 

F 

F 

300 

F 

F 

F 190 1010 

F 

F 

300 

F 

190 F 

RP Boundary 

F 

F 

Barrier Kerb 

660 

F 

200 

F 

F 

F 

F 190 

F 

F 

F 

490 F 


F 

F 

100 

1410 

B 

C 

Barrier Kerb 

750 F 

F 

F 

F150 

190 


Refer Note 2 

F 

F 

6000 

4190 

Barrier Kerb 

Barrier Kerb 

PLAN 


ABN 50 087 646 062 

1610 


Drainage Slot 

Refer Note 6 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

F 

F 

C. Noel 

10.04.12 

A. Bletchly 

T.Borg 

190 

C 

F 

F 

F 

Barrier Kerb 

F 

600 F 

F 

250 

F 

600 

50 F 

F 

F 

F 

F 

F 

50 

F 

100 

F 

F 

100 

F 

50 

F 

340 

F 

F 

340 

F 

F 

550 

F 

1800 


Refer Note 2 

1150 


F 

F 

F 

Barrier Kerb 

F 

F 

300 



FILE: 5 

Dwg 5276 Sh2 

55 5276 2 

F 

F 

FOOTPATH 

R.P.Street 

Alignment 

Earthing 


200 Series bond Beam 

2/N12 bars Horizontally 

150 F 

F 

Earthing 


F 

F 

F 

F 

150mm thick concrete slab (Grade N20) 


placed centrally. 

F 


F 

SECTION 

A 



Refer Note 4 



25 

F 

F 

F 

20 

75 x 50 x 6 Al.L 

Refer Note 8 

FF 

F 

F 

20 

C 

F 



SECTION 

F 

F 

40 

F 

5 

F 

F 

F 

35 

F 

20 

F 

F 

F 

35 

F 

F 

50 

F 

F 

F 

3mm Alum Cover PL 

Refer Note 8 

F F 

F45 

1400 Max 

200 Min. 

F 

F 




D 

F 

Earthing 

Cover Plate 

Barrier Kerb 

F 

F 

F 250 

500 F 



ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

F 

C. Noel 

10.04.12 

A. Bletchly 

F 

T.Borg 

F 

100 

14 dia Hole for 


F 

F 

F 

F 


F 

D 

F 

150 

F 


Stitch weld 


200 


Stitch weld 


VIEW 

50mm thick 

unreinforced concrete 

F 

F 

F 

FF 

F 

F 



25 

F F 

5 

50 

F 

F 

F 

85 

400 max.crs. 

(typical) 

F 

F 

FF 

F F 








F150 


F 

SECTION 



Dwg 5276 Sh3 

55 5276 3 

B 


F 

F 

F 

2/N12 Bars 


F 

F 

F 

Barrier Kerb 

F 

100 200 

F 

Earthing 

F 

F 

Cable Trench 


FILE: 5 

Natural Surface


MATERIAL: 

TOLERANCES: 

FABRICATION: 

PROTECTIVE 

COAT: 

CONCRETE: 

NOTES: 

Structural steel bars and sections shall be in accordance with AS/NZS 3679 - 250. 

Circular hollow sections shall be in accordance with AS 1163 - C250. 

+ 

-2mm 

except where otherwise specified on drawing. 

(a) Welds shall be categorg SP in accordance with AS/NZS 1554.1. 

All joints shall be full seal welds unless noted otherwise. 

Fillet welds shall be 5mm. 

(b) Remove sharp edges, burrs and weld spatter prior to galvanizing. 

(c) Remove slag after galvanizing. 

Hot dip galvanize after fabrication in accordance with AS/NZS 4680. 

(a) All concrete work shall be in accordance with AS 3600. 

(b) Concrete shall be grade N20 in accordance with AS 3600. 


(a) Fix Gridmesh to support frame using galv. clamps in accordance with manufactures 

requirements. 

(b) Chain to be hooked on Padmount side of Platform. Chain and hook to be clear of 

ladder access when in unhooked position. 

(c) Establish height of service platforms and ladders on site. 


ABN 50 087 646 062 

APPROVED 

DATE 

PASSED 

DRAWN 

C. Noel 

04.07.12 

A. Bletchly 

T.Borg 



RECTANGULAR HV AND LV SERVICE PLATFORM 

DETAILS 

FILE: 5 

Dwg 5280 Sh1 

55 5280 1


95 

14 dia holes (4 places) for 

12mm Chemset masonary anchors 

Back of MS 

F 

+ 5 

850- 

0 

F 

Back of MS 

F 

+ 5 

900- 

0 

Top Grating 

Refer Detail 1 

F 

F 

+ 5 

1400- 

0 

F 

F 

450 

F 

F 

150 

F 

F 

F 

80 F 

F 

FF F 

F 

F 

F 

FF 

F 

300 dia 

F 

F 

F 

F 

F 

300 Min. 

1200 

33.7 x 2 CHS top rail 

26.9 x 2 CHS Mid.Rail 

48.3 x 3.2 CHS posts 

60.3 OD x 3.6Tk posts 

4/N12 Vertical Bars 

W8 Ties @ 600crs Max 

F 

F 

300 

F 


F 

+ 5 

2600 

-0 

+ 5 

2440 

-0 

2440 

400 810 

F 

F F 250 

F 

F F 250 

80 

F 

F 

F 330 

F 

F 600 F 220 

F 

F 

30 

F 

1390 

F 

Back of MS 

Edge of Blockwork 

Back of MS 

C. Noel 


04.07.12 


A. Bletchly 

T.Borg 

F 

FF 

FF 

FF 

300 

F 

F 

Galvanised GR50110 

gridmesh floor 

75 x 75 x 6 Fl. Base Plates 

Refer galvanizing note above 


ABN 50 087 646 062 

F 

PLAN 


Provide internal holes in handrails and posts 

as required by Galvanizer to vent and drain 

zinc during galvanizing. 

F 


12mm Chemset masonary anchors 

ELEVATION 

F 

APPROVED 

DATE 

PASSED 

DRAWN 

95 

F 

F 

1200 

F 

F 

F 

300 

F 

F 

F 

F 

300 

F 

F 

F 

90 

600 

F 

F 

500 Min 

F 

F 

F 

F 

F 

150 

F 

F 

+ 5 

850-0 



F 

F 

180 

F 

65 

F 

300 

F 

F 

790 



600 

600 

450 

F 

600 

F 

300 dia 

F 

F 

F 

F 

Back of MS 

F 

F 

F 

F 

F 

DETAILS 

F 

F 

F 

+ 5 

2100- 

0 

F 

F 

Back of MS 

F 

Back of MS 

8mm galv. chain 

at ladder access. 

Refer note. 

Rungs to be equaly spaced 

200min - 300max 

65 x 10 Fl Stiles 

Top of top rung level 

with top Gridmesh 

W8 Ties @ 600crs. 

55 5280 2 

20mm dia. MS Rungs. 

Full seal fillet weld 

to Stiles. 

Construction joint if reqd. 

4/N12 Vertical Bars 


FILE: 5 

5280 

Dwg Sh 

2


75 F 

FF 35 

Edge of blockwork 

F 

F 

F 

40 

F F 

12 

70 

150 

F 

40 x 40 x 5 L 

75 Long 

F F 

12 

100 

60 x 8 Plate 150 Long 

75 TFC frame 

F 

40 

F 

PLAN 

SCALE 1:5 


F 

F 

F 

ELEVATION 

F 

DETAIL 2 

22 F 

F F 

10 

Gridmesh omitted for clarity 

F 

F 

75 x 75 x 6 L x 150 Long 

F 

75 TFC 

F 

60 

F 

SECTION A 


12mm galv. Chemset masonary anchors 

75 x 75 x 6 L x 150 Long 

48.3 x 3.2 CHS post 

5 FF 

5 FF 

F 

F 

20 FF 

F 

DETAIL 1 

SCALE 1:5 

12 

80 

F 

75 TFC 

150 F 

12 

40 x 40 x 5 L 75 Long 

PLAN 

F 



F 

20 

FF 

A 

M12 galv. bolts 


ABN 50 087 646 062 

33.7 x 2 CHS top rail 



75TFC 

75 TFC 

5 FF 

75 TFC 

40 

C. Noel 

04.07.12 

A. Bletchly 

T.Borg 

FFF 

38 

FF 

Fabricate 150 x 75 x 6 L x 600 Long 

APPROVED 

DATE 

PASSED 

DRAWN 

75 TFC 

F 

12 

F 

150 

5 FF 

20 x 6 Fl. 600 Long 

Stitch Weld 

F 

48.3 x 3.2 CHS posts 

F 

F 

F 

20 F 

F 

F 

F 

F 

65 x 6 Fl. 80 Long 

65 x 10 Fl. 

100r F 

195 

F 


PLAN 

SCALE 1:5 

F 

DETAIL 4 

SCALE 1:2.5 

188 

ELEVATION 

M12 bolt 

F 

F 100 

F 

F 

F 

14 dia. hole 

32 x 5 Fl. x 60 Long 

For earth connection 



DETAILS 

55 5280 3 

F 

220 

F 


FILE: 5 

5280 

Dwg Sh 

3

F 

F 

4400 Min. 

R.P.Street 

Alignment 


FOOTPATH 

F 

F 

F 

F 

1150 

F 

F 

1000 

F 

1750 

6200 Min. 

PLAN 

Cabinet 

SECTION A 

_ 

F 

F 

100 


ABN 50 087 646 062 

F 


Foundation 


25MPa 

Blockwork / 

17.5MPa 

Core Filling 


80mm Vertical 

20 cover to 

Conduit 

inside face 

A 

_ 

200 series 

F 

F 

F 

F 

1390 

Site 

Boundary 

200 

200 

Ground 

Line 

F 

Conduit installed through RETAINING WALL DETAIL 

the slab and continue to 

C.Noel 

10.07.12 

A.Bletchly 

T.Borg 

blockwork 


lap 500 at 


necessary 


60 cover top 


lap 400 

250 

ground level for ease of 

finding. This can be cut 

to suit later. 

APPROVED 

DATE 

PASSED 

DRAWN 

F 

F 

75 

150 




F 

F 

F 

F 


20mm 


F 

F 

- 

10mm 300kg/cu. m 



55 5281 1 

50 

800 

F 

CUT SLOPING SITE 

F 

300 

5281 

Site 

Boundary 

500 

1 

Backfill 

material 

Filter 

material 



FILE: 5 

Dwg Sh 

1200 Max. 

500

F 

F 

4400 Min. 

Fence refer 

FOOTPATH 

drawing 5011. 

Footpath 

Ground Line 

600 

F 

Min 

F 

Backfill 


F 

F 

F 

1150 

F 

F 

1000 

F 

1750 

F 

F 

Cabinet 

SECTION 

6200 Min. 

PLAN 

A 

F 

F 

F 

F 

F 

Site 

F 

Boundary 

Finished 

Site Level 

F 

F 

F 

F 

1390 


Weepholes 

F 

A _ 

200 

200 


Line 


ABN 50 087 646 062 





APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

10.07.12 

A.Bletchly 

T.Borg 


Foundation 

F 

F’c 

25MPa 

Blockwork / 

17.5MPa 

Core Filling 

Filter 

20 cover to 

inside face 

Backfill 

material 

material 





55 5281 2 

F 

Slump 

75 




N12 at 400 

with 55 cover 

300 

150 10mm 

F 

F 

F 

300 

FILLED SLOPING SITE 


50 

F 

F 

Aggregate 

F 

F 

20mm 

F 

500 

800 

5281 

Site 

Boundary 

lap 500 at 

necessary 

F 

F 

2 

- 

300kg/cu. m 


200 series 

blockwork 

N12 at 400 

Cement 


SL72 mesh 

F 

F 

55 cover 

250 


FILE: 5 

Dwg Sh 

F 

500 

1400 Max. 


F 

F

RETAINING WALL CONSTRUCTION 

1 SETTING OUT 

The Contractor shall be responsible for the correct setting out of 

works. The Contractor shall establish the actual position of all 

services on site before commencing work on the site. 

2 COMPLIANCE 

The Contractor shall comply with acts of parliament, statutory, 

municipal and other regulations or bylaws, that in any way 

affect the works, with particular regard to: 

Workplace Health & Safety 

Protection of Public Utilities 

Traffic Hazards and Public Safety. 

3 DAMAGE RESPONSIBILITY 

The Contractor shall be responsible for any damage to public 

utility service installations such as water, gas and sewer pipes, 

electrical, traffic signal or telephone conduits and shall bear the 

costs of reinstating any service damaged during consturction of 

the works. 

4 SPECIAL CONDITIONS 

The retaining wall construction drawings provided by Ergon 

Energy are to be applied in normal situations. 

Where special conditions exist, (in the opinion of a Civil 

Engineer RPEQ) such as: 

Extra heavy surcharge 

Unstable ground conditions 

Property boundary limitations 

Excavation or backfilling restrictions 



ABN 50 087 646 062 

The developer shall provide a certified design from a Civil Engineer 

(RPEQ) for Ergon Energy’s consideration. No special designs for retaining 

wall construction shall be used without the approval of Ergon Energy. 

5 ADDITIONAL REQUESTS 

Additional requests will be required if the developer, or the developer’s 

representative, choose to: 

Construct the padmounted substation on a slope where the retaining 

wall would be higher than 2.0m, or 

Use a different method of construction for the retaining wall. 

Requests shall be accompanied by a certified design from a Civil Engineer 

(RPEQ) for Ergon Energy’s consideration. No special designs for retaining 

wall construction shall be used without the approval of Ergon Energy. 

6 MASONRY 

Concrete masonry materials and workmanship shall comply with AS3700. 

Masonry blocks shall be 200 series and shall comply with AS/NZS 4455. 

Mortar shall consist of 1 part cement, 1/10 part slaked lime and 3 parts 

sand measured by volume complying with the requirements of AS 3700 

- masonry structures. 

The bottom course blocks shall contain an opening to permit clean out of 

the cell space. 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

12.07.12 

A.Bletchly 

T.Borg 



SITE PREPARATION 


FILE: 5 

55 5283 1 

5283 

Dwg Sh 

1

7 

8 

9 

FOUNDATIONS 

Where the bearing surface under the foundation is silt or clay 

soil, a 100mm layer of compacted sand or gravel bedding 

material shall be placed under the concrete foundation. 

Foundation must be undisturbed material which is firm and dry. 

Wall not to be founded on uncompacted fill material. 

CONCRETE 

Concrete work shall comply with AS3600 

Concrete:- 

Foundation - F’c = 25MPa; 75mm Slump; 20mm Max Agg. 

Core Filling - F’c = 17.5MPa; 150mm Slump; 10mm Max 

Agg. 

Concrete foundation slab with continuous reinforcement over- 

lapped at joints shall be poured MONOLITHICALLY (in one 

operation). 

REINFORCEMENT 

Reinforcement:- 

Hot rolled deformed bar - "TEMPCORE" complying with 

AS 1302 

Hard-drawn steel wire reinforcement fabric complying with 

AS 1303 and AS 1304. 



ABN 50 087 646 062 

10 DRAINAGE 

50mm weepholes at 1200 centres shall be provided through walls. 

A porous backfill such as gravel or coarse sand shall be provided directly 

behind the wall to allow water to reach the weepholes. It is essential to 

have suitable filter material between the wall and the natural ground. 

11 BACKFILLING 

Clay soils and organic silts shall not be used as backfill as they have poor 

drainage characteristics. 

Backfill should not be placed or compacted until the wall has cured (14 

days minimum for 17.5 MPa concrete) so as to have sufficient strength to 

withstand backfilling loads. 

Backfill shall be compacted to 95% of the maximum dry density as defined 

in the Modified Compaction Test - Test AS 1289 - E2.1. 

After installation of the padmounted substation and cables has been 

completed, the ground within the enclosure shall be backfilled, 

compacted, levelled and finished in accordance with Drawing No. 5004. 

APPROVED 

DATE 

PASSED 

DRAWN 

C.Noel 

12.07.12 

A.Bletchly 

T.Borg 



SITE PREPARATION 


FILE: 5 

55 5283 2 

5283 

Dwg Sh 

2

Underground Construction Manual Issue 7 ... - Ergon Energy

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