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

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Code 17 DISPLAY OF LABELS AND NOTICES 17A Warning Notice for Substations and Switchrooms (1) Warning notice for substations (2) Warning notice for switchrooms (3) Warning notice for distribution boards 17B Warning Notice for Connection of Earthing and Bonding Conductors 17C Warning Notice for Repair 17D Notice of Periodic Testing of Electrical Installations 17E Notice of Testing for Residual Current Devices 17F Warning Notice for Installation Having Both New and Old Cable Colours 120
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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
Page 70 and 71: (b) Subject to subparagraph (a) abo
Page 72: (Note: 1. An extraneous conductive
Page 76 and 77: (d ) Where a residual current devic
Page 78 and 79: (c) Values of k for protective cond
Page 80 and 81: Table 11(4) Minimum Cross-sectional
Page 82: Table 11(11) Maximum Earth Fault Lo
Page 85 and 86: Code 12 EARTHING ARRANGEMENT 12A Ge
Page 87 and 88: (4) Plate electrode Plate electrode
Page 89 and 90: Code 13 CONDUCTORS, JOINTS AND CONN
Page 91 and 92: (a) the ambient temperature does no
Page 93 and 94: (2) Identification of cable cores (
Page 95 and 96: Code 14 WIRING INSTALLATION ENCLOSU
Page 97 and 98: (b) Flexible steel conduits should
Page 99 and 100: 14E Cable Capacity of Enclosures (1
Page 101 and 102: Table 14(2) Cable Factors and Condu
Page 103 and 104: Table 14(4) Cable Factors and Trunk
Page 105 and 106: Code 15 ADVERSE CONDITIONS INSTALLA
Page 107 and 108: (c) Where cables are to be connecte
Page 109 and 110: (d ) Electrical equipment and wirin
Page 111 and 112: (b) There should be adequate means
Page 114 and 115: Table 15(4) Selection of Electrical
Page 116 and 117: Code 16 OVERHEAD LINE INSTALLATIONS
Page 118 and 119: (2) Any point of the span The condu
Page 123 and 124: Code 18 ALTERATIONS AND ADDITIONS 1
Page 125 and 126: Code 19 FIRST INSPECTION, TESTING A
Page 127 and 128: (d ) Every certificate should be si
Page 129 and 130: Code 20 PERIODIC INSPECTION, TESTIN
Page 131 and 132: (f ) premises that the Director may
Page 133 and 134: Code 21 PROCEDURES FOR INSPECTION,
Page 135 and 136: (5) Insulation resistance (a) A sui
Page 137 and 138: (8) Earth fault loop impedance (a)
Page 139 and 140: 21D Testing of High Voltage Install
Page 141 and 142: Table 21(1) Minimum Values of Insul
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Page 149 and 150: Code 22 MAKING AND KEEPING OF RECOR
Page 151 and 152: and testing results are also proper
Page 153 and 154: PART II Code 25 GENERAL WORKMANSHIP
Page 155 and 156: (i) Adjacent or parallel conduits c
Page 157 and 158: (b) Where cables run as a span betw
Page 159 and 160: (b) Unless otherwise advised by the
Page 161 and 162: procedure adopted should be as reco
Page 163 and 164: (b) For steel surface conduit insta
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Page 169 and 170: 26I Lightning Protection Installati
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(3) Electrical equipment in bathroo
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(b) Fixed air-conditioners and spac
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(d ) Single phase domestic thermal
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(b) Where protective devices are us
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26E Supply Connection to Welding Se
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exterior installation and a tempora
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26I Lightning Protection Installati
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(v) Where wooden poles are used, al
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(c) Zone 3 is the volume outside Zo
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Zone 2 is limited by: (a) the verti
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• SELV, the source of SELV being
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• The height from the floor is at
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(f ) Every safety source and isolat
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circuits are electrically separated
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(b) Protection against earth leakag
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Appendix 1 Prescribed Requirements
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( j) Multiple socket outlets should
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(8) Marking (a) The socket outlet s
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Appendix 2 Prescribed Requirements
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etween the base and the inside wall
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(c) The letters L and N should be u
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(e) Conductive component parts of s
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(b) All accessible metal parts at a
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(f ) (i) Socket outlets having a ra
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material from current carrying part
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(2) Correction factors for groups o
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(5) Correction factors for cables i
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This page is intentionally left bla
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TABLE A6(1) (Cont.) VOLTAGE DROP (p
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Appendix 8 Graphical Symbols for El
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No. Symbol Description 35. 36. 37.
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No. Symbol Description 56. 57. 58.
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Appendix 9 Performance Monitoring P
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(Note: The information above is ext
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(Note: The information above is ext
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(c) 4 mm 2 PVC insulated copper cab
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Appendix 13 B) Checklists (Note: Fo
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(v) All exposed metal parts includi
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(xiv) Suitable cable terminations p
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(f ) Final circuits (i) All fuses a
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Tested by/Date (N/A if not applicab
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(x) No evidence of corrosion likely
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Appendix 14 References References m
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BS EN 60598 Luminaires BS EN 60669
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BS 6004 Electric cables. PVC insula
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Appendix 15 Safety for Live Work (A
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Appendix 18 New Cable Colour Code f
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Figure A18(2b) - New coloured wirin
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. Existing cables adopting either y
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INDEX Alterations and additions to
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final 4G(3), 6B(1)(b), 6B(4), 6C(c)
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Final circuits arrangement ring sep
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Overcurrent protective device coord
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Code of Practice for the Electricity (Wiring) Regulations - 2009 Edition

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