BS 7671
BS 7671 is a publication from the IEE (Institution of Electrical Engineers) in agreement with the BSI British Standards Institute (UK). The BSI publish numerous titles concerning acceptable standards of design/safety/quality etc. in various fields. BS 7671 : 2001 (AMD No 2 : 2004) concerns the safety of electrical wiring in buildings (dwellings, commercial, industrial or otherwise) – generally known as the "Regs" (wiring regulations) – and succeeds the previous publication the 16th Edition of the Wiring Regulations.
The On-Site Guide is a handbook that contains some information not in BS 7671 : 2001. It is meant as a handy notebook reference for electricans working on building sites.