The standard operates on the fundamental principle that an electrical installation must be safe. To achieve this, it mandates specific protective measures:
Although BS 7671 is a non-statutory code of practice, it is legally recognized as the most effective way to demonstrate compliance with the Electricity at Work Regulations 1989 . BS 7671 Electrical Wiring Regulations Guide - RS Components british standard bs 7671
To work to BS 7671 you typically need: