* 740 temporary installations, circuses, amusement fairs, The following new sections have been added: National Rules For Electrical Installations The following sections have been revised: * (Chapter 48, 3rd Edition has been deleted from 4th Edition and its contents incorporated in Section 729 (481) and Chapter 42 (482)) * Section 701: Major change: All circuits must be protected by an RCD. * Chapter 61: Changes to fault-loop impedance measurement values. * Chapter 55: 551: Generating sets - some additional requirements.ĥ55: Appliances - RCDs required on all water heaters. * Chapter 53: New rules for RCDs, SPDs and Distribution Boards. * Chapter 52: Restructured with some changes. * Chapter 41 and Chapter 61: Fault loop impedance tripping times are all 0.4 sec, the 5 sec time applies only to special cases e.g. The following are some of the major changes:
The Main Technical Changes in the Fourth Edition The international standard format followed up to now by the three editions of the National Rules has facilitated comparison with other national rules, and the 4th Edition will follow this more closely. Ireland has negotiated successfully for several SNCs, e.g. Where it is found necessary, countries are permitted to retain special requirements or 'Special National Conditions' (SNCs) which are justifiable on account of local conditions. Harmonisation of wiring rules in Europe has been a gradual process, and the 4th Edition represents a significant advance. Ireland, represented by ETCI, has been an active member of CENELEC since 1973. The equivalent European organisation, CENELEC, uses the results of IEC as a basis for its deliberations and the work is carried out by CENELEC TC64, in which most European countries participate. The basic work on wiring rules is done in IEC TC64, the world-wide electrotechnical standards organisation. * 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. * 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.
Etci rules book pdf ESB Networks are fully supportive of ETCI, CER.Ĭlick here to purchase the new Fourth Edition from the ETCI Publications Online Store. National Rules for Electrical Installations, 4th Edition, Amendment No. 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.