On-site guide : BS 7671:2008 (2011): IET wiring regulations, 17th edition, incorporating amendment no. 3, 2015

Vital changes have been made in Amendment 3 regarding safety for contractors and consumers.

This essential quick-reference guide to BS 7671 has been updated to the changes in Amendment 3 to BS 7671:2008. The On-Site Guide is designed to be taken on-site for easy referencing and provides simple guidance on the application of BS 7671. All updates in Amendment 3 will be included in the On-Site Guide, which include, but are not limited to: Consumer units (to come into effect January 2016)Wiring in escape routesChanges to earth fault loop impedances for all protective devicesCircuit-breakers used as functional switchesOvervoltagesEMC & compatibilityChanges to definitions throughout the Regulations Amendment 3 published on 5 January 2015 and comes into effect on 1 July 2015.

All new installations from this point must comply with Amendment 3 to BS 7671:2008.