This is the most important part of any new installation or any work carried out on an existing circuit. The extent a DIYer can inspect and test is very limited as they may not have the necessary expertise and probably won't have access to the relevant test equipment that complies with the current regulations. The 16th Edition Wiring Regulations BS7671:2001 as amended requires that test equipment to fulfill the following criteria:

The above criteria is a BASIC outline of the requirements. The necessary equipment to cover all the required tests cost in excess of £800 which is well outside that which a normal DIYer will want to pay.


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