On-Site Guide (BS 7671:2018+A2:2022) (Electrical Regulations)

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The lET's Wiring Regulations Policy Committee, therefore, advises the following: A Class I metal consumer unit is installed and each outgoing circuit is protected by an RCBO (b) A split, Class I metal consumer unit is installed, where the double-pole main switch of the consumer unit should incorporate an S type (time delayed) RCCB, e.

As we have stated but will do again to emphasise the importance, please remember when attempting any electrical installations at home that you are obliged to get the completed job tested by a fully qualified electrician and obtain a minor works certificate. the required disconnection time, for exam ple, where the distributor does not provide a connection to a means of earthing, i.BS 7671 is a joint publication of the British Standards Institution and the Institution of Engineering and Technology. As we have stated, anything else should be done, tested and signed off by a qualified Part P registered electrician. Subsequent intervals will be recommended by the competent person carrying out the inspection and testing.

What if I discover a defect with the distributor’s equipment whilst carrying out inspection and testing?The 18th edition on-site guide is an accompanying piece of documentation that complements the full 18th edition bs7671 wiring regulations guide. More information is available in the IET Guidance Notes, the IET Electricians Guide to the Building Regulations and On-site Guide (BS 7671:2018), 7 th Edition. In compliance with the definitions of BS 7671, throughout this Guide the term line conductor is used instead of phase conductor and live part is used to refer to a conductor or conductive part intended to be energised in normal use, including a neutral conductor.