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NAPIT Guide to Initial Verification and Periodic Inspection and Testing of Electrical Installations to BS7671:2018+A2:2022-2nd Edition 2022 (PDF)

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  • Brand: NAPIT
  • Sku: SM25436UK
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About the book:

Publisher: NAPIT
Place of Publication: United Kingdom
Pages: 316
Edition: 2022
Language: English
Size: 107 Mb

Complies with BS7671:201 8+A2:2022.

Content:

Preface............................................................................................................. 8
Foreword ........................................................................................................9
About the Authors......................................................................................10
Introduction ................................................................................................12
Section 1 Legal Requirements..................................................................13
1.1 The Health and Safety at Work Act etc. 1974 (HASWA).................. 15
1.2 The Electricity at Work Regulations 1989 (EAWR)............................ 15
1.3 The Construction (Design and Management) Regulations 2015.............................................................................. 18
1.4 The Electricity Safety, Quality and Continuity Regulations (ESQCR)........................................................................ 19
1.5 The Provision and Use of Work Equipment Regulations 1998 (PUWER)............................................................... 19
1.6 Personal Protective Equipment (PPE) 2002 and Personal Protective Equipment at Work (Amendment) Regulations 2022 .....................................................21
1.7 Building Regulations........................................................................ 23
1.7.1 The Building Act 1984....................................................................... 23
1.7.2 The Building Regulations 2010 (England and Wales)...................... 23
1.7.3 Approved Document A - Structure................................................. 25
1.7.4 Approved Document B Volume 1: Fire safety (Dwellings)............... 26
1.7.5 Approved Document C- Site preparation and resistance to contaminants and moisture......................................................... 32
1.7.6 Approved Document E- Resistance to the passage of sound................................................................................. 33
1.7.7 J Approved Document F-Ventilation ................................................33
1.7.8 Approved Document L1A Conservation of fuel and power in new dwellings...................................................................35
1.7.9 Approved Document LIB Conservation of fuel and power in existing dwellings................................. 37
1.7.10 Approved Document M – Access to and use of buildings ............. 37
1.7.11 Approved Document P- Electrical safety....................................... 40
1.7.12 The Building (Scotland) Regulations 2004....................................... 41
Section 2 BS 7671:2018+A2:2022 Requirements for Electrical Installations.................................................................................................43
2.0 BS7671:2018+A2:2022Requirements for Electrical lnstallations....45-46
2.1 BSEN61557 Electrical safety in low voltage distribution systems up to 1000 V AC and 1500V DC Equipment for testing, measuring or monitoring of protective measures.......................... 46
2.2 HSE Guidance Note: GS38 Electrical test equipment for use on low voltage electrical systems........................................ 46
Section 3 Identification of distribution equipment and installation components.................................................................................................49
3.0 Identification of Distribution equipment and installation components...................................................................................... 56
3.1 Consumer unit designs.................................................................... 56
3.2 Protective Earthing and Bonding..................................................... 77
3.3 Automatic disconnection of supply (ADS)....................................... 83
3.4 Protection by SELV, PELV or Electrical Separation .......................... 87
Section 4 Safe Isolation of Electrical Supplies........................................89
4.1 Legislation and Regulations............................................................. 91
4.2 Hidden dangers................................................................................ 92
4.3 Isolating a complete installation ..................................................... 94
4.4 Safe isolation procedure................................................................... 97
4.5 Isolation of larger installations....................................................... 102
Section 5 Test instruments......................... ............................................. 1 07
5.1 Voltage tester..................................................................................109
5.1.1 Voltage tester confirmation check box (proving unit)................... 112
5.2 Low resistance ohmmeter/lnsulation resistance meter................113
5.2.1 Conductor resistance (Low resistance ohm meter)........................ 1 13
5.2.2 Conductor continuity (Low resistance ohm meter)........................ 1 14
5.2.3 Insulation resistance (Low resistance ohm meter).........................1 15
5.3 Earth fault loop impedance (EFLI) tester .......................................1 16
5.4 Prospective Fault Current (lpf) tester .............................................. 1 19
5.5 RCD tester ......................................................................................121
5.6 Phase sequence indicators............................................................. 124
5.7 Earth electrode resistance tester.................................................... 125
5.8 Single-function test instruments, multi-function test instruments (MFTs) and multi-meters ........................................... 126
5.9 Thermal evaluation equipment.....................................................128
5.10 Calibration...................................................................... 131
5.10.1 Frequency of checks........................................................................ 133
5.10.2 Calibration records.......................................................................... 134
Section 6 Standard Tests......................................................................... 135
6.1 Safety............................................................................ 137
6.2 Sequence of Tests............................................................................ 137
6.3 Continuity of conductors............................................................... 138
6.4 Insulation resistance....................................................................... 153
6.5 Polarity ...........................................................................................163
6.6 Earth electrode resistance test....................................................... 164
6.7 Earth fault loop impedance ........................................................... 168
6.8 Prospective fault current lpf............................................................. 173
6.9 Testing RCDs................................................................................... 175
6.10 Phase sequence and phase rotation (polyphase installations or circuits)................................................ 178
6.1 1 Functional tests............................................................................... 179
6.12 Arc Fault Detection Devices (AFDD)............................................... 180
6.13 Verification of voltage drop............................................................ 181
6.14 Test readings documentation......................................................... 183
Section 7 Initial Verification .................................................................... 191
7.1 Verification Process......................................................................... 193
7.2 Breakdown of EIC example checklist............................................. 196
7.3 Electrical Installation Certificate (EIC)/Minor Electrical Installation Works Certificate (MEIWC)........................... 232
Section 8 Requirements for periodic inspection and testing............. 233
8.1 Inspection and testing requirements ...........................................235
8.1.1 Extent and Limitations - Agreed & Operational ........................... 236
8.1.2 Sampling vs Quality........................................................................238
8.2 Inspection schedule breakdown.................................................... 239
8.2.1 Examples of items requiring inspection for an Electrical Installation Condition Report (EICR)..............................239
8.3 Testing............................................................................................. 262
8.4 Report Codes and classifications.................................................... 262
8.4.1 Danger present, immediate remedial action required (Unacceptable condition)...............................................................263
8.4.1.1 Client/Duty holder notification.............................................. 263
8.4.2 Potentially dangerous, urgent remedial action required...... 265
8.4.3 Improvement recommended................................................265
8.4.4 Further investigation required without delay........................ 266
8.4.5 Observations and Coding ..............................................................267
8.4.6 Remaining Observation Codes......................................................267
8.5 Frequency of Inspection and/or Testing........................................268
8.5.1 Previous/existing installation information..................................... 269
8.5.2 Client/Duty holders' responsibilities.............................................. 270
8.5.3 Maximum frequencies between inspections and any testing...... 270
8.6 EICR completion and documentation................ 271
8.6.1 Overall summary ............................................................................ 271
8.6.1.1 Satisfactory...................................................................................... 271
8.6.1.2 Unsatisfactory.................................................................................. 272
8.6.2 Completed documentation............................................................272
8.6.2.1 Notes for the person producing the report...................................282
8.6.2.2 Guidance for recipients................................................................... 282
8.6.2.3 Guidance for the Inspector............................................................. 282
8.7 Remedial actions and documentation........................................... 282
8.7.1 Remedial documentation ..............................................................283
Appendix 1 NAPIT Certificates and Reports......................................... 285
Electrical Installation Certificate (EIC)......................................................... 287
Minor Electrical Installation Works Certificate (MEIWC)............................. 294
Electrical Installation Condition Report (EICR)............................................ 299
Dangerous Situation Report........................................................................ 308
Appendix 2 Verification, Inspection and Testing information sheets......309
Safe Isolation Procedure Domestic............................................................. 31 1
Safe Isolation Procedure Industrial/Commercial .......................................312
Protective Device Max Zs Chart................................................................... 313
Cable reference methods............................................................................ 314

Tags: NAPIT Guide BS7671:2018+A2:2022 pdf, NAPIT Guide A2:2022, NAPIT Electrical Guide BS7671:2022 pdf

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Reviews (3)
Keith
Keith
02/10/2022
I bought it and use it for self-study.
Ivan
Ivan
23/06/2022
Good book. Bought and use.
Roberto
Roberto
03/06/2022
I bought this book on the recommendation of friends. Everything is super.
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