Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This Question of the Day, about an existing electrical installation in living accommodation and workshops having no RCD protection, is answered by SELECT:
What Code (1,2,or 4) should be applied on the test certificate?
Answer: As you indicate, the 17th Edition requirements are not retrospective. However, if the sockets are likely to supply external equipment, then a Code 1 is perhaps appropriate.
If this is not the case and the sockets are being used by ordinary persons, and if the area is not under the control of a skilled person, then perhaps a Code 2 may be applicable. In all situations the element of danger should be individually assessed.
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