The basic work on wiring rules is done in IEC TC64, the world-wide electrotechnical standards organisation. National Rules for Electrical Installations: (Reference to Chapters, Sections, Paragraphs, Tables and Annexes correspond to those contained in the National Rules. Appendix 62A of the ETCI’s 2008 National Rules for. 62.4 of the “National rules for Electrical Installations. * Changes and new developments in types of equipment, work practices and building practices. * New sections for areas hitherto not covered, for example marinas, amusement parks, photoelectric equipment and extra-low voltage lighting. * Technical changes resulting from decisions at international level (IEC and CENELEC) which necessitate the revision of existing rules. This has resulted in the following: * A new and radical restructuring of the rules, mainly in Part 4: Protection for Safety. The principle reason for producing the Fourth Edition is the progress on international harmonisation of wiring rules in IEC and CENELEC. To purchase the new Fourth Edition from the ETCI Publications Online Store. The Third Edition will not be valid after this date.
New installations may be constructed to either the Third or Fourth Editions up to 30th September 2009. The National Rules for Electrical Installations, Fourth Edition, is now available for sale.