IET Wiring Regulations

The current edition of the IET Wiring Regulations is the 3rd Amendment to the 17th edition 2015. The main reason for incorporating the IET Wiring Regulations into British Standard BS 7671 2008 was to create harmonization with European Standards. 

The IET Wiring Regulations are the electrician s bible and provide the authoritative framework of information for anyone working in the electrical industry. 

We wiii now iook at one non-statutory reguiation, what is sometimes caiied the eiectrician s bibie , the most important set of reguiations for anyone working in the eiectricai industry, the BS 7671 2008 Requirements for Electrical Installations, IET Wiring Regulations 17th Edition. 

The IET Wiring Regulations 17th edition requirements for electrical installations to BS 7671 2008... 

An instaiiation that meets the requirements of the lET Wiring Regulations Requirements for Eiectricai instaiiations wiii be so protected. The method most universaiiy used in the United Kingdom to provide for the safe use of electrical energy is Basic Protection and Fauit Protection, as described in Chapter 41 of the iET Reguiations. So, iet us iook at these essentiai safety elements. 

Fibre-optic cables look like steel wire armour (SWA) cables (but of course are lighter) and should be installed in the same way and given the same level of protection as SWA cables. Avoid tight-radius bends if possible and kinks at all costs. Cables are terminated in special joint boxes which ensure cable ends are cleanly cut and butted together to ensure the continuity of the light pulses. Fibre-optic cables are Band I circuits when used for data transmission and must therefore be segregated from other mains cables to satisfy the iET Regulations. 

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