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0 pointsquickthrowman4y ago0 comments

> Embarrassingly, I have managed to shock myself several times during my life on 240V mains. Once quite recently while working on a light fitting at a friend's flat and not realising that someone had flipped the circuit back on at the circuit breaker!

Next time, I suggest using a breaker lockout [0] in conjunction with the local disconnecting means (light switch, which you can also lock out! [1]) to do it safely :)

[0] https://www.walmart.com/ip/MASTER-LOCK-493B-Circuit-Breaker-...

[1] https://www.homedepot.com/p/Ideal-Wall-Switch-Lockout-44-789...

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2 comments · 1 top-level

Reason0774y ago· 1 in thread

> "light switch, which you can also lock out!"

No you can't! Ceiling light fittings (in the UK, at least) are often always live regardless of the switch setting. This is because they are typically wired in a "loop" arrangement with separate loop and switch cables.

Example: https://www.practicaldiy.com/electrics/lighting-wiring/light...

quickthrowmanOP4y ago

Well, the rest of the world outside of the UK, Ireland, and Hong Kong uses a safer method of electrical circuiting, one that wasn’t invented to deal with post-war material shortages.

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