OK.. I have a faulty RCD to replace as seen on the photo. It feeds a 32amp ring circuit, in a commercial premises on a 'TT' supply. Ze=37.6, 0.63kA.
Looking at the photo you may notice a few strange things about the two RCD's?
Would I need to add in some extra form of protection before these isco's?
Looking at the photo you may notice a few strange things about the two RCD's?
Would I need to add in some extra form of protection before these isco's?
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