NATIONAL ALUMINIUM COMPANY LIMITED - Rites

shall be provided. In addition to steel windows, panels of suitable size to suit the
architectural treatment and made of translucent sheets of polycarbonate material shall also
be provided d on the side cladding for natural lighting.
4.4 Control building, M. C. C. Buildings
These shall be R. C. C. framed structures with columns, beams, slabs and foundations etc.
Cladding shall be of brickwork with plastering on both sides. Roof shall be pro provided with roof
water proofing treatment, as specified elsewhere in the Technical specification. In case of
control building suitable permanent interconnection shall be provided at appropriate level
with the existing respective buildings. All air - conditioned oned areas, shall be provided with the
suspended permanently colour coated aluminium false ceiling system (details specified
elsewhere). Adequate aluminium doors and windows shall be provided for natural lighting,
ventilation and view.
4.5 Pump Houses
These e shall be of R.C.C. or steel framed structure with columns, beams, slab andfoundations
etc. cladding shall be of brick work with plastering on both sides. Roofshall be provided with
roof water proofing treatment as specified elsewhere.Underground sump and water tanks
shall be of R.C.C. Adequate number of doors,Windows and Rolling Shutters shall be
provided.Galvanized steel ladder / rung ladder shall be provided for access to the roof level
ofthe pump house and water tanks.
4.6 Pent House
These shall be of R. C. C. framed structures with columns, beams, slabs andfoundations etc.
Cladding shall be of brickwork with plastering on both sides. Roofshall be provided with roof
water proofing treatment as specified elsewhere. Adequate nos. of steel doors and window windows
shall be provided for natural lighting and ventilation.
4.7 Toilets
Toilet with potable water line facilities shall be provided in each of the following locations:
In all M. C. C. Rooms Control Building Each unit shall have brick enclosure, and the following
fittings.
i ) Squatting type, white, vitreous china Orissa 1 No. pattern, W.C. pan with high level
flushing cistern ( C.I. ) and all requisite fittings
ii ) Bowl type Urinal with automatic flushing 2 Nos. cistern ( C.I. ) and all requisite fittings
iii ) Wash Basin 630 mm x 450 mm with 2 Nos.two taps and all requisite items
iv ) Mirror 600 mm x 450 mm x 5.5 mm thick 2 Nos.with bevelled edges ( Superior sheet
glass )
v ) C.P. Brass Towel Rod 600 x 20 mm 1 No.
vi ) Liquid Soap Container 2 Nos.
vii ) Washing Tap ( CP Brass ) 2 Nos.
viii ) Overhead Polyethylene water tank 1 No.(min. 500 litres capacity)
ix ) Suitable provision for installation of water coolers.
4.8 Staircase
All roofs & floors of transfer houses shall be accessible through staircase. However,for the
pump houses, access to the roof will be provided by cage ladder. All stairs other than those
of M. C. C. rooms and control rooms shall be of steel (min (minimum imum 1000 mm wide)and
maximum rise should not be more than 180 mm and minimum tread width 250 mm.
Stringers shall be of rolled steel channel( minimum ISMC 250 )and tread shall be of steel
gratings. Stairs shall be provided with 32 mm dia nominal bore mediu medium m duty M. S. pipe hand
rail. Handrails (for staircases, around openings, in walkways etc.) shall be of standard weight
steel pipe of flush welded constructions, ground smooth using 32 mm nominal bore medium
class pipe provided with double rail, top rail ab about out 1.0 metre above platform level and pipe
posts spaced not more than 1.5 metres apart. Angle handrail post may be provided when
Technical Specification:Sec-7, Civil
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