British Standard BS 7671

Posted by Peter on 21st June 2009 at 11:29pm

Low voltage electrical installations.
Low voltage refers to standard 240 volt domestic installation, as opposed to 3 phase supplies and higher voltages found in industrial properties.
British Standard BS 7671 "Requirements for electrical installations" is the national standard in the United Kingdom for low voltage electrical installations.

The IET (formerly IEE) has published wiring regulations in the United Kingdom since 1882. Since their 15th edition (1981), these regulations have closely followed the corresponding international standard IEC 60364. Today, they are largely based on European CENELEC harmonization documents, and therefore are technically very similar to the current wiring regulations of other European countries. In 1992, the IEE Wiring Regulations became British Standard BS 7671 and they are now treated similar to other British Standards. They are maintained by the Joint IET/BSI Technical Committee JPEL/64, the UK National Committee for Wiring Regulations.

Although the IET and BSI are non-governmental organizations and the Wiring Regulations are non-statutory, they are referenced in several UK statutory instruments.