| Description |
1 online resource (171 pages) |
| Contents |
Cover -- Title -- Copyright -- Contents -- 1 Design considerations -- Characteristics of the supply that is available -- Nature of demand -- External influences/environmental conditions -- Electromagnetic influences -- Utilisation -- Construction of buildings -- 2 Types of supply system and earthing arrangements -- TT supply system -- TN-S supply system -- TN-C-S supply system -- Earthing -- 3 Earth electrodes -- Earth electrodes -- Circuit protective conductors -- Selecting the correct size of circuit protective conductor -- 4 Protective bonding |
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5 DiversityCalculating the diversity of a cooker -- Diversity on complete installations -- 6 Cable calculation -- Earth fault loop impedance -- Twin and earth 70°C thermoplastic PVC cable -- 7 Socket outlet circuits -- Ring final circuits -- Adding an outlet to an existing ring -- Radial circuits for socket outlets -- Fused connection units -- 8 Safe isolation -- Equipment required -- Single-phase isolation -- Three-phase isolation -- 9 Isolation and switching -- Origin -- Distribution boards and consumer units -- Circuit breakers -- Motors |
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Functional switchingIsolation -- Switching off for mechanical maintenance -- Emergency switching -- Firefightersâ#x80;#x99; switch -- 10 Periodic inspection volt drop -- 11 Installing an electric shower -- 12 Two-way and intermediate switching -- Intermediate switching -- 13 Fault finding in central heating -- Room thermostats -- Programmable room stats -- Cylinder thermostats -- Unvented cylinder -- Heating circulation pump -- Motorised valves -- Two-port valve -- Three-port diverter valve -- Three-port mid-position valve |
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14 Electrical installation fault findingRing final circuit -- Interpretation of ring final test results -- RCD tripping -- Insulation resistance -- Identifying a lost switch line on a three-plate lighting circuit -- Immersion heater not working -- Changing/replacing an immersion heater -- 15 Changing an immersion heater -- Unvented cylinder -- 16 RCD tripping faults -- RCBO trips and will not reset -- Power circuit -- Lighting circuit -- 17 Electric motors -- Polarisation testing of electric motors -- 18 Use of RCDs -- Testing of RCDs |
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Insulation resistance testsEarth fault loop impedance tests with RCDs -- 19 Calculating the maximum Zs -- Fuses -- RCBOs -- 20 Fire protection -- Fire protection in dwellings -- Escape routes |
| Bibliography |
Includes bibliographical references and index |
| Notes |
Print version record |
| Subject |
Electric wiring.
|
|
electric wiring.
|
|
Electric wiring
|
| Form |
Electronic book
|
| ISBN |
9781134833511 |
|
1134833512 |
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