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I would point out that it’s very possible to do work that appears to function but isn’t necessarily safe.
I know. This is true whether the circuit is earthed or not, I think? Although it's possibly more likely to install a fitting in a way that's less than acceptable with a circuit that has no earth. But class ii fittings exist - like the plastic ceiling rose - to side step the worst of that.
I would also say that a DIYer almost certainly doesn’t have the equipment to test and verify the suitability or condition of existing wiring.
Yeah, it's unlikely. I was referring to tooling a consumer needs to verify the wiring they are working on is 'dead', having been shut off at the fuse box / consumer unit.
Howard-
It was just a comment about DIYing electrics in general. Reversed polarity, switching on the neutral rather than live conductors, high resistance joints, badly terminated connections, too much bare conductor exposed.
There’s loads of little things that could occur and pose danger while the lights still work.Switching off the circuit labelled as lighting is no guarantee of safety either without means of proving dead.
I’m definitely being pedantic. And I’ve got skin in the game (I’m obviously going to espouse the advantage of using a spark).
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In my experience most consumers up to untrained professionals have no idea about the rules and recommendations surrounding even the most basic test meter. There's quite a lot of specific basic process that even the trained professionals are being doubly encouraged and reminded to follow.
I wouldn't make any assumptions that a consumer has a reliable voltage tester and is testing it properly before they test for dead or is locking the means to re-energise the circuit.
Nef
Airhead
I would point out that it’s very possible to do work that appears to function but isn’t necessarily safe. I would also say that a DIYer almost certainly doesn’t have the equipment to test and verify the suitability or condition of existing wiring.