Description
This standard specifies minimum safety requirements relating to live parts, temperature, and earth fault current protection and positioning of equipment during installations.
TABLE OF CONTENTS
| Content | Page |
| 1 Scope | 1 |
| 2 Normative references | 2 |
| 3 Definitions | 8 |
| 4 Compliance | 30 |
| 4.1 Compliance standards | 30 |
| 4.2 Deleted by No. 3 | 30 |
| 4.3 Applicable standards | 32 |
| 4.4 Deleted by No.3 | 39 |
| 4.5 Notices, labels and rating plates | 39 |
| 5 Fundamental requirements | 41 |
| 5.1 Safety | 41 |
| 5.2 Basic provisions | 43 |
| 5.3 Characteristics | 46 |
| 5.4 Prevention of harmful effects | 48 |
| 5.5 Environmental conditions | 48 |
| 5.6 Medical locations | 49 |
| 5.7 Extra-low voltage systems (SELV & PELV | 49 |
| 6 Installation requirements | 54 |
| 6.1 General circuit arrangements | 54 |
| 6.2 Current-carrying capacity of conductors and cables | 56 |
| 6.3 Installation of conductors and cables | 108 |
| 6.4 Positioning and fixing of cables | 112 |
| 6.5 Wireways | 117 |
| 6.6 Distribution boards | 123 |
| 6.7 Protection | 130 |
| 6.8 Circuit-breakers | 138 |
| 6.9 Disconnectingdevices | 139 |
| 6.10 Fuses | 141 |
| 6.11 Consumer’s Earth terminal | 141 |
| 6.12 Earthing | 143 |
| 6.13 Bonding | 148 |
| 6.14 Lighting | 150 |
| 6.15 Socket-outlets | 155 |
| 6.16 Fixed appliances | 159 |
| 7 Special installations or locations | 168 |
| 7.1 Bathrooms, showers, spas, etc | 168 |
| 7.2 Swimming pools, padding pools, ornamental pools, spas and fountains | 178 |
| 7.3 Saunas | 187 |
| 7.4 Construction and demolition site installations | 190 |
| 7.5 Agricultural and horticultural locations | 193 |
| 7.6 Caravan parks, mobile homes and marinas. | 194 |
| 7.7 Medical locations | 198 |
| 7.8 Temporal insatallations | 212 |
| 7.9 Extra- low voltage lighting installations | 215 |
| 7.10 Stage and theatre equipment | 221 |
| 7.11 Safety and emergency lighting | 222 |
| 7.12 Alternative supplies (incl. low voltage generating sets, photovoltaic (PV) installations, etc.) | 223 |
| 7.13 High-voltage (HV) apparatus | 228 |
| 7.14 Hazardous locations | 233 |
| 7.15 Telecommunications d.c. power systems | 235 |
| 7.16 Earthing of d.c. circuits | 237 |
| 8 Verification and certification | 238 |
| 8.1 Deleted by amendment No. 3 | 238 |
| 8.2 Responsibility | 238 |
| 8.3 Installation characteristics | 239 |
| 8.4 Electricity supply systems | 239 |
| 8.5 Prospective short-circuit current | 239 |
| 8.6 Inspection | 242 |
| 8.7 Testing | 244 |
| Annex A Deleted by amendment No.5 | 261 |
| Annex B (informative) Limits of “arm’s reach” | 262 |
| Annex C (informative) Installation components | 263 |
| Annex D (informative) Example of Assessing established load for residential -type installations | 265 |
| Annex E (informative) Calculation of voltage drop | 267 |
| Annex F (informative) Recommended bending of cables | 276 |
| Annex G (informative) Examples of determining the conduit size required for single-core cables of different sizes | 277 |
| Annex H (informative) Deleted by amendment No. 3 | 279 |
| Annex J (informative) Explanation of IP ratings | 280 |
| Annex K (informative) Notification of a potential danger | 281 |
| Annex L.1 (normative) Installation of surge protective devices (SPD’s) into low-voltage systems in order to protect the installation | 282 |
| Annex L.2 (informative) Guide to the risk assessment for the installation of SPD’s | 291 |
| Annex M (informative) Electricity supply systems | 304 |
| Annex N (informative) Earthing arrangements and equipotential bonding of information technology installations for functional purposes | 310 |
| Annex O (informative) Classification of safety services necessary for medical locations | 317 |
| Annex P (informative) Authority for issuing a test report and a certificate of compliance | 322 |
| Annex Q (informative) IEC symbols associated with switchgear | 323 |
| Annex R (informative) Example of the application of correction factors for harmonic currents | 324 |
| Annex S (informative) Examples of emergency power installation configuration | 325 |