| List of figures and tables |
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xiii | |
| Acknowledgements |
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xvii | |
| Introduction |
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1 | (1) |
| Inspecting and testing of electrical installations |
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1 | (4) |
| Chapter 1 The legal requirements |
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5 | (10) |
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6 | (1) |
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7 | (2) |
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8 | (1) |
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9 | (3) |
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Inspecting and testing of notifiable work |
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9 | (1) |
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Self-certification by registered competent person |
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9 | (1) |
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Certification by a registered third party |
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10 | (1) |
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11 | (1) |
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Inspection and testing of non-notifiable work |
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11 | (1) |
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Building regulation compliance certificates or notices for notifiable work |
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11 | (1) |
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11 | (1) |
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12 | (3) |
| Chapter 2 Types of certification required for the inspecting and testing of electrical installations |
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15 | (10) |
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Certification required for domestic installations (Part P) |
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15 | (2) |
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Minor electrical installation works certificate |
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15 | (1) |
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Part P domestic electrical installation certificate |
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15 | (1) |
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Periodic inspection, testing and reporting |
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16 | (1) |
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Certification required for the inspecting and testing of installations other than domestic |
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17 | (8) |
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Minor electrical installation work certificate |
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17 | (1) |
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Electrical installation certificate |
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17 | (8) |
| Chapter 3 Initial verification inspection |
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25 | (22) |
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25 | (5) |
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26 | (1) |
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Alternative supply sources |
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26 | (1) |
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Automatic disconnection of supply |
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27 | (1) |
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28 | (1) |
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28 | (1) |
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Basic and fault protection |
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29 | (1) |
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29 | (1) |
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Initial verification testing |
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30 | (1) |
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30 | (1) |
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30 | (17) |
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32 | (10) |
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What are we looking for during a periodic inspection? |
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42 | (4) |
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Three phase circuits/systems |
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46 | (1) |
| Chapter 4 Periodic testing |
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47 | (66) |
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Voltage drop and inspection and testing |
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50 | (3) |
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Verification of voltage drop |
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50 | (1) |
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Voltage drop in conductors |
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51 | (2) |
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Testing of electrical installations |
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53 | (7) |
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53 | (3) |
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56 | (4) |
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Testing of protective bonding conductors |
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60 | (7) |
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60 | (7) |
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Continuity of protective supplementary bonding conductors |
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67 | (5) |
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Determining if a metal part is extraneous or just a piece of metal |
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72 | (1) |
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Continuity of circuit protective conductors |
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72 | (14) |
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73 | (1) |
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74 | (1) |
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74 | (3) |
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Broken conductor in a ring circuit |
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77 | (1) |
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77 | (1) |
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78 | (8) |
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86 | (1) |
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Insulation resistance test |
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87 | (2) |
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Low insulation resistance |
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87 | (2) |
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89 | (24) |
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Testing the whole installation |
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89 | (6) |
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Testing of individual circuits |
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95 | (3) |
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98 | (1) |
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Insulation resistance testing of a three phase installation |
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98 | (5) |
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103 | (1) |
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Polarity test on a radial circuit such as a cooker or immersion heater circuit |
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103 | (1) |
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Polarity test on a lighting circuit |
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104 | (9) |
| Chapter 5 Earth electrode testing |
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113 | (46) |
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Measurement using an earth electrode tester |
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113 | (17) |
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113 | (4) |
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Testing with an earth loop resistance tester |
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117 | (3) |
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Earth fault path for a TT system |
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120 | (1) |
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Earth fault path for a TN-S system |
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120 | (1) |
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Earth fault path fora TN-C-S system |
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120 | (2) |
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122 | (3) |
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Circuit earth fault loop impedance Zs |
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125 | (1) |
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126 | (4) |
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Method using tables from GN3 or the On-site Guide |
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130 | (2) |
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131 | (1) |
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132 | (7) |
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A circuit incorporating a socket outlet on a ring or a radial |
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132 | (1) |
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Performing the test on a radial circuit other than a socket outlet |
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133 | (6) |
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Earth loop impedance using a high current loop test instrument without tripping an RCD |
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139 | (2) |
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Prospective fault current test (Ipf) |
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141 | (6) |
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142 | (1) |
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142 | (1) |
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143 | (2) |
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145 | (2) |
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147 | (12) |
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147 | (1) |
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147 | (2) |
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149 | (1) |
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150 | (1) |
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150 | (1) |
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150 | (6) |
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156 | (1) |
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156 | (1) |
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156 | (1) |
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BS 7288 RCD protected socket |
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157 | (1) |
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157 | (2) |
| Chapter 6 Completion of test certificates |
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159 | (26) |
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Minor electrical installation works certificate |
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159 | (2) |
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Electrical installation certificate |
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161 | (8) |
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Design, construction, inspection and testing |
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164 | (2) |
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166 | (1) |
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Supply characteristics and earthing arrangements |
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166 | (1) |
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167 | (1) |
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Particulars of the installation referred to in the certificate |
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167 | (1) |
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Main protective conductors |
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167 | (1) |
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Main switch or circuit breaker |
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168 | (1) |
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Comments on the existing installation |
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168 | (1) |
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168 | (1) |
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169 | (2) |
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169 | (1) |
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170 | (1) |
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171 | (1) |
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Electrical installation condition report |
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172 | (11) |
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177 | (1) |
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Summary on the condition of the installation |
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178 | (1) |
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179 | (1) |
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179 | (1) |
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179 | (1) |
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Supply characteristics and earthing arrangements |
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180 | (1) |
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Particulars of the installation referred to in the certificate |
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181 | (1) |
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Details of earth electrode |
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182 | (1) |
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Main protective conductors |
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182 | (1) |
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Main switch or circuit breaker |
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182 | (1) |
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182 | (1) |
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Condition report inspection schedule |
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183 | (2) |
| Chapter 7 Correct selection of protective devices |
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185 | (12) |
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185 | (1) |
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What type of device is it? Is it a fuse or circuit breaker? |
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186 | (5) |
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Is the device being used for protection against indirect contact? |
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187 | (1) |
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What type of circuit is the device protecting? Is it supplying fixed equipment only, or could it supply hand held equipment? |
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187 | (1) |
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If it is a circuit breaker, is it the correct type? |
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187 | (1) |
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Will the device be able to safely interrupt the prospective fault current which could flow in the event of a fault? |
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188 | (1) |
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Is the device correctly coordinated with the load and the cable? |
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188 | (1) |
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Additional information regarding circuit breakers |
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188 | (3) |
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191 | (1) |
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Step up or down double wound transformer |
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191 | (1) |
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192 | (1) |
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Separated extra low voltage transformers (SELV and PELV) |
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192 | (1) |
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192 | (1) |
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Testing a three phase induction motor |
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192 | (5) |
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Polarisation index testing of an electric motor |
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194 | (3) |
| Chapter 8 Test equipment |
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197 | (6) |
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197 | (2) |
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197 | (1) |
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Insulation resistance tester |
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198 | (1) |
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Earth fault loop impedance tester |
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198 | (1) |
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Prospective short circuit current test instrument |
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198 | (1) |
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Earth electrode resistance tester |
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198 | (1) |
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Residual current device tester |
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199 | (1) |
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199 | (1) |
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199 | (1) |
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Calibration of test instruments |
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199 | (2) |
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201 | (2) |
| Chapter 9 Electric shock |
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203 | (4) |
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205 | (2) |
| Chapter 10 Testing photovoltaic systems |
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207 | (18) |
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Testing and commissioning |
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207 | (3) |
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207 | (2) |
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209 | (1) |
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Testing the d.c. side of the installation |
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210 | (8) |
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217 | (1) |
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217 | (1) |
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Insulation resistance test |
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218 | (5) |
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219 | (2) |
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221 | (2) |
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Testing the a.c. side of the installation |
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223 | (2) |
| Chapter 11 Fault finding |
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225 | (10) |
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225 | (2) |
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Interpretation of ring final test results |
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227 | (2) |
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229 | (1) |
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230 | (1) |
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Identifying a lost switch line on a three plate lighting circuit |
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231 | (1) |
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Immersion heater not working |
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232 | (3) |
| Chapter 12 Exercises and questions |
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235 | (18) |
| Chapter 13 Answers |
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253 | (24) |
| Glossary |
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277 | (6) |
| Index |
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283 | |
Lisainfo e-raamatute kohta