Code of Practice for the Electricity (Wiring) Regulations - 2009 Edition

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Code 26 REQUIREMENTS FOR SPECIFIC INSTALLATIONS AND EQUIPMENT 26A Domestic Installation and Appliance (1) Supply connection to domestic appliance (2) Electrical equipment in kitchens (3) Electrical equipment in bathrooms (4) Air-conditioners and space heaters (5) Water heaters (6) Electrical call bells and electric clocks 26B Busbar Trunking Distribution System (1) General (2) Busbar casing (3) Busbar (4) Expansion unit (5) Feeder unit (6) Tap-off unit (7) Busbar trunking accessories 26C Electric Motor (1) General (2) Rating of circuits supplying electric motors (3) Starting facilities of electric motors 26D Supply Connection to Transformers 26E Supply Connection to Welding Sets 26F Installation of Fluorescent and Gaseous Discharge Lamps 26G Installation of Category 3 Circuits 26H High Voltage Discharge Lighting Installation (Neon Signs) (1) Requirements of circuits (2) Means of isolation (3) Fireman’s emergency switch (4) Installation (5) Transformers (6) Barrier for live parts (7) Earthing 168
26I Lightning Protection Installation 26J Rising Mains Installation 26K Temporary Supply Installation for Construction and Demolition Sites or Repair and Testing Purposes (1) Scope (2) General (3) Design consideration (4) Inspection, testing and maintenance 26L Hot Saunas Installation (1) General (2) Classification of zones (3) Basic protection and fault protection (4) Selection and erection of equipment 26M Swimming Pools and Fountains Installation (1) General (2) Assessment of general characteristics (3) Bonding (4) Application of protective measures against electric shock (5) Selection and erection of equipment 26N Installation in Restrictive Conductive Locations (1) Scope (2) Basic protection and fault protection (3) Basic protection (4) Fault protection 26O Installation of Equipment Having High Earth Leakage Currents 26P Renewable Energy Power System (1) Scope (2) Selection and erection of installation (3) Inspection, testing and maintenance 26Q Temporary Electrical Installation for Exhibitions, Shows, Stands and Festive Lighting (1) Scope (2) General (3) Design consideration 169
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CODE OF PRACTICE FOR THE ELECTRICIT
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Page 6G Final Circuits Using 16A In
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Page 17. Display of Labels and Noti
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Page Appendices 208 1. Prescribed R
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Code 1 INTRODUCTION PART I This Cod
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‘cable trunking’ means a manufa
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‘powertrack system’ means an as
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Code 3 APPLICATION 3A General Appli
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Code 4 GENERAL SAFETY REQUIREMENTS
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warning notices and the placing of
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4E Working Space (a) A minimum clea
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Additional lighting should be provi
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(b) Work procedure for High Voltage
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(ii) Keep hands away from any circu
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Code 5 SEGREGATION OF CIRCUIT CATEG
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(i) A minimum horizontal or vertica
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Code 6 CIRCUIT ARRANGEMENT 6A Divis
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(2) Control Each circuit should be
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(4) Permanently connected equipment
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Type of Circuit A1 Ring A2 Radial A
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Code 7 CURRENT DEMAND 7A Current De
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Purpose of Conductors or Switchgear
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Code 8 ISOLATION AND SWITCHING 8A P
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(iv) luminaires (lamp replacement a
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(3) Devices for switching off for m
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Code 9 OVERCURRENT PROTECTIVE DEVIC
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Overload protective devices may hav
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Table 9(1) Limiting Final Temperatu
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Table 9(4) Classification of MCB to
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Code 10 NEUTRAL CONDUCTOR PROTECTIV
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Code 11 EARTH LEAKAGE AND EARTH FAU
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(b) Subject to subparagraph (a) abo
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(Note: 1. An extraneous conductive
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(d ) Where a residual current devic
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(c) Values of k for protective cond
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Table 11(4) Minimum Cross-sectional
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Table 11(11) Maximum Earth Fault Lo
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Code 12 EARTHING ARRANGEMENT 12A Ge
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(4) Plate electrode Plate electrode
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Code 13 CONDUCTORS, JOINTS AND CONN
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(a) the ambient temperature does no
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(2) Identification of cable cores (
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Code 14 WIRING INSTALLATION ENCLOSU
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(b) Flexible steel conduits should
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14E Cable Capacity of Enclosures (1
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Table 14(2) Cable Factors and Condu
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Table 14(4) Cable Factors and Trunk
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Code 15 ADVERSE CONDITIONS INSTALLA
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(c) Where cables are to be connecte
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(d ) Electrical equipment and wirin
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(b) There should be adequate means
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Table 15(4) Selection of Electrical
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Code 16 OVERHEAD LINE INSTALLATIONS
Page 118 and 119: (2) Any point of the span The condu
Page 120: Code 17 DISPLAY OF LABELS AND NOTIC
Page 124 and 125: Code 18 ALTERATIONS AND ADDITIONS 1
Page 126 and 127: Code 19 FIRST INSPECTION, TESTING A
Page 128 and 129: Code 20 PERIODIC INSPECTION, TESTIN
Page 130 and 131: (b) Examples of the above are dange
Page 132 and 133: Code 21 PROCEDURES FOR INSPECTION,
Page 134 and 135: 21B Testing of Low Voltage Installa
Page 136 and 137: (6) Polarity (a) A test of polarity
Page 138 and 139: (d ) Secondary Injection Test (i) T
Page 140 and 141: will have affected the results of t
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Page 148 and 149: Code 22 MAKING AND KEEPING OF RECOR
Page 150 and 151: Checklists Requirements to be Used
Page 152 and 153: Code 23 & Code 24 (Reserved for Fut
Page 154 and 155: Part II Code 25 GENERAL WORKMANSHIP
Page 156 and 157: equipment should be suitable for th
Page 158 and 159: (2) Installation of PVC insulated,
Page 160 and 161: (c) Where cold compound with plasti
Page 162 and 163: (b) Earth continuity across joints
Page 164 and 165: Table 25(2) Spacing of Supports for
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Page 170 and 171: Code 26 REQUIREMENTS FOR SPECIFIC I
Page 172 and 173: (iii) controls and switches of wate
Page 174 and 175: (vi) Except as provided by (vii) wh
Page 176 and 177: (b) Facilities should be incorporat
Page 178 and 179: (3) Starting facilities of electric
Page 180 and 181: than the product of the total stead
Page 182 and 183: (5) Transformers (a) Every transfor
Page 184 and 185: (b) Electrical apparatus and wiring
Page 186 and 187: (f ) Supply from generator set Wher
Page 188 and 189: manufacturer’s instructions. Othe
Page 190 and 191: • SELV, the source for SELV being
Page 192 and 193: protected by an RCD having the char
Page 194 and 195: (2) Basic protection and fault prot
Page 196 and 197: plug. The permanent connection to t
Page 198 and 199: prevent electric shock to electrica
Page 200 and 201: Table 26(1) Recommended Number of S
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Page 204 and 205: 204
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Page 208 and 209: APPENDICES 1. Prescribed Requiremen
Page 210 and 211: (d ) The spacing of the socket cont
Page 212 and 213: diameter of the clamping screw and
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contact with appropriate socket con
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(ii) between live parts and any oth
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222
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(1) General Appendix 3 Prescribed R
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(d ) An earthing terminal should be
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Appendix 4 Prescribed Requirements
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(5) Screws and connections (a) Scre
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Appendix 5 Correction Factors for S
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(3) Correction factors for cables e
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Appendix 6 Current Carrying Capacit
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TABLE A6(1) Single-core PVC insulat
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TABLE A6(2) Multicore PVC insulated
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TABLE A6(3) Single-core armoured PV
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TABLE A6(4) Multicore armoured PVC
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TABLE A6(5) Single core XLPE insula
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TABLE A6(6) Multicore XLPE insulate
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TABLE A6(7) Single-core XLPE insula
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TABLE A6(8) Multicore armoured XLPE
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274
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278
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280 Contactor Main make contact of
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282 Junction, connection point
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No. Symbol Description 45. 46. 47.
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No. Symbol Description 68. 69. 70.
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Appendix 10 Degree of Protection Pr
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Appendix 11 Forms of Internal Separ
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Appendix 12 Worked Examples for App
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Appendix 13 A) Schedule of Test Res
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(iii) All joints of metal conduit o
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Checklist No. 4—Additional Items
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(iv) Suitable stay wires installed
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Tested by/Date (N/A if not applicab
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(vii) Protective conductor up to an
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Checklist No. 5—Items for H.V. In
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IEC 60947 Low-voltage switchgear an
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BS 88 Part 6 Cartridge fuses for vo
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References may be made to the follo
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320
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(3) Precautions In the new colour c
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5.2 Single-phase installation Exten
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5.3 Three-phase installation Extens
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enclosure in conduit and trunking i
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Double insulation Duct Earth fault
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Joints and termination Labels bondi
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Socket outlets general installation
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