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Thanks. I think this guy has just riled me up enough already that I'm sensitive to anything he says. And because so much of my job is consuming and regurgitating technical specifications in a way that others can understand, I hate it when someone just says, "because regs" without explaining why. Makes me think they don't actually understand the regs themselves if they can't explain them or know where they might not apply.
stevo_com-
Or they are fresh out of training and have no actual real world experience yet.
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This sounds like most of them, just pull random information from nowhere without explanation or comprehension of the facts.
2007 we had a full house rewire after we'd basically rebuilt it from the ground up. Guy who wired it came recommended by many folk, once he was gone and fixed some of his issues, building controller was in to sign a few things off (major job), got stuck into wiring and locations of things and basically threw a hissy fit. Rightly so as it turned out, the electrician was on his last year of work before retiring and just seemed to deliberately fuck everything up to spite everyone. Most of the issues were wrong sized cabling, incomplete earths in various places, the consumer unit was out of date/ undersized and one other thing, too long ago to rememeber. But had trusted him as good rep + seemed to know the facts*
*Maybe from a few decades prior, but not current knowledge anymore.
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450mm is ok though isn’t it? I mean, call him out for being a div, but all my sockets are 450 and I’m doing ok.
konastab01
BrickMan
Hefty
No, they don’t need to be at 450mm because it’s not a new build or part of a substantial enough extension. I have my guide to part P somewhere that has the exact stipulations, but unless something has changed, perfectly fine to install at normal height. Might just be used to doing them at 450 as that is the new standard tho.
It might be on a 20a because you have a broken ring so it’s essentially 2x 2.5mm radial circuits. 2.5mm as a radial can only take 20A, while set up as a ring can take 32A, it’s a very common thing to do when you can’t get ring readings. You’d need to do end to end continuity of the conductors to confirm either way.
Absolutely no problem having a ring on a 20A breaker. Ib ≤ In ≤ Iz - ib Load, must be less than in breaker rating, which must be less than what the cable is rated for.
Unless you’re planning on having a very heavy load on the circuit, 20A is perfectly fine.