A SP switched device would actually satisfy BS 7671, other than in a TT installation. Although it's normal practice to use DP switching for isolation, Reg. 460-01-04 states that the neutral does not need to be isolated in a TN-S or TN-C-S earthed installation fed from the public mains. The exception is the main switch of a domestic installation, which must always be DP [476-01-03]. See also page 34 of the OSG.
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In light of the new January regs coming I suppose I should either
1) Get a move on and get it down for 1st Jan 2) take the "it was done prior 1st Jan" approach 3) Get electrics checked by relevant person, on completion.What is it with UK and nannying us, and trying to take all our money at the same time!
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