SZNS SANS 10142-1:2017 The wiring of premises Part 1: Low-voltage installations

E1,115.65

Description

1.1 Application of this part of SZNS SANS 10142

This part of SZNS SANS 10142 applies to electrical installations of

  1. a) residential premises,
  2. b) commercial premises,
  3. c) public premises,
  4. d) industrial premises,
  5. e) prefabricated buildings,
  6. f) fixed surface installations on mining properties,
  7. g) construction and demolition site installations,
  8. h) agricultural and horticultural premises,
  9. i) caravan sites and similar sites,
  10. j) marinas, pleasure craft and house boats,
  11. k) medical locations,
  12. l) exhibitions, fairs and other temporary installations,
  13. m) extra low voltage lighting installations,
  14. n) electrical installations for street lighting and street furniture, and
  15. o) equipment enclosures (structures that provide physical and environmental protection for telecommunication equipment).

Contents                                                                                                                          Page

Introduction……………………………………………………………………………………………………………………………………. iv

1Scope……………………………………………………………………………………………………………………………………………… 1

1.1      Aspects covered by this part of SANS 10142………………………………………………………………… 1

1.2      Electrical equipment…………………………………………………………………………………………………………… 2

1.3      Electrical equipment ……………………………………………………………………………………………………………2

2     Normative references…………………………………………………………………………………………………………….. 2

3     Definitions……………………………………………………………………………………………………………………………….. 6

4     Compliance……………………………………………………………………………………………………………………………… 21

4.1      Applicable standards…………………………………………………………………………………………………………. 21

4.2      Notices, labels and rating plates……………………………………………………………………………………… 25

5     Fundamental requirements………………………………………………………………………………………………….. 26

5.1      General………………………………………………………………………………………………………………………………….26

5.2      Safety…………………………………………………………………………………………………………………………………… 27

5.3      Basic provisions………………………………………………………………………………………………………………….  28

5.4      Characteristics……………………………………………………………………………………………………………………. 30

5.5      Prevention of harmful effects………………………………………………………………………………………….. 31

5.6      Environmental conditions……………………………………………………………………………………………….. 31

5.7      Medical locations……………………………………………………………………………………………………………… 31

5.8      Extra low voltage systems (SELV and PELV)………………………………………………………………… 31

6     Installation requirements……………………………………………………………………………………………………. 34

6.1      General circuit arrangements………………………………………………………………………………………… 34

6.2      Current-carrying capacity of conductors and cables……………………………………………….. 35

6.3      Installation of conductors and cables…………………………………………………………………………. 74

6.4      Positioning and fixing of cables…………………………………………………………………………………… 76

6.5      Wire ways…………………………………………………………………………………………………………………………. 79

6.6      Distribution boards………………………………………………………………………………………………………… 82

6.7      Protection…………………………………………………………………………………………………………………………. 87

6.8      Circuit-breakers……………………………………………………………………………………………………………….. 91

6.9      Disconnecting devices……………………………………………………………………………………………………. 91

6.10    Fuses………………………………………………………………………………………………………………………………….. 92

6.11    Consumer’s earth terminal……………………………………………………………………………………………. 93

6.12    Earthing……………………………………………………………………………………………………………………………. 94

6.13    Bonding……………………………………………………………………………………………………………………………. 97

6.14    Lighting……………………………………………………………………………………………………………………………. 98

6.15    Construction………………………………………………………………………………………………………………….. 101

6.16    Fixed appliances……………………………………………………………………………………………………………. 103

7     Special installations or locations…………………………………………………………………………………….. 108

7.1      Bathrooms, showers and spas…………………………………………………………………………………….. 108

7.2      Swimming pools, paddling pools, ornamental pools, spas and fountains…………. 116

7.3      Saunas……………………………………………………………………………………………………………………………… 121

7.4      Construction and demolition site installations………………………………………………………….123

7.5      Agricultural and horticultural locations…………………………………………………………………….. 125

7.6      Caravan parks, mobile homes and marinas……………………………………………………………… 125

7.7      Medical locations…………………………………………………………………………………………………………… 127

7.8      Temporary installations…………………………………………………………………………………………………. 135

7.9      Extra low voltage lighting installations……………………………………………………………………….. 137

7.10    Stage and theatre equipment………………………………………………………………………………………. 140

7.11    Safety and emergency lighting……………………………………………………………………………………. 141

7.12    High-voltage (HV) apparatus……………………………………………………………………………………….. 145

7.13    Hazardous locations……………………………………………………………………………………………………….. 149

8     Verification and certification……………………………………………………………………………………………….152

8.1 Responsibility (see 8.7, section 5 of the test report)………………………………………………………. 152

8.2 Installation characteristics…………………………………………………………………………………………………….152

8.3 Electricity supply system……………………………………………………………………………………………………… 152

8.4 Prospective short-circuit current………………………………………………………………………………………… 152

8.5 Inspection……………………………………………………………………………………………………………………………….. 155

8.6 Testing…………………………………………………………………………………………………………………………………….. 156

8.7 Test reports…………………………………………………………………………………………………………………………….. .160

9     Annex A…………………………………………………………………………………………………………………………………. …179

10       Annex B…………………………………………………………………………………………………………………………………180

11       Annex C……………………………………………………………………………………………………………………………. . .182

12       Annex D…………………………………………………………………………………………………………………………….. .183

13       Annex E……………………………………………………………………………………………………………………………… ..189

14       Annex F………………………………………………………………………………………………………………………………. .190

15       Annex G…………………………………………………………………………………………………………………………………192

16       Annex H………………………………………………………………………………………………………………………………..193

17       Annex I …………………………………………………………………………………………………………………………………194

18       Annex J………………………………………………………………………………………………………………………………. ..206

19       Annex K………………………………………………………………………………………………………………………………. 210

20       Annex L……………………………………………………………………………………………………………………………….. 214

21       Annex M……………………………………………………………………………………………………………………………… 218

22       Annex N……………………………………………………………………………………………………………………………… 219

23       Annex O……………………………………………………………………………………………………………………………… 220

24       Annex P………………………………………………………………………………………………………………………………. 221

25       Bibliography………………………………………………………………………………………………………………………. 225

 

 

 

 

 

 

 

 

 

 

 

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