No electrician worth his salt would insert/tighten/remove cables on a live circuit unless he has a death wish.Therefore,he should switch off the supply and check that the circuit is 'not live' before commencing work. Why then do I see electricians screwdrivers and pliers which claim to be 1000 volts fully insulated,or are these made purely for the idiots to use?
Nonsense!
Sometimes you just *have* to work on live circuits, sometimes there just isn't a choice. It isn't that dangerous.
See above answer.
You are very much mistaken, live working is very common. It is sometimes the only way to work and is an essential part of fault finding.
You're not listening, are you, Harry?
FUCK OFF, you deaf old git.
I presume you haven't worked on triac circuits with a cro? This is where you have to remove the cro earth lead and wear gloves to tweak the controls. Try it, it's fun ;)
Here's another one for you. Many moons back, my old chap used to do small scale theatrical lighting. The dimmers were - galvanised buckets full of salt water connected to 240V live. Shovels connected to the bulbs. Dunk the shovels = brighter lights. Safe as houses, the shovels had wooden handles :D
In message , Jack the Lad writes
I plumbed my new CU in live last year, no other option really
Where's the problem ?
anyone wrote on Thursday (05/02/2004) :
Works equally well at 11Kv :D
You have access to 11KV? That's convenient.
Good question. The 'leccy that did my extension added a new ring (spare way in the CU) and swapped a type B MCB for a type C on the downstairs lighting without turning the power off.
Due to a misunderstanding between him and my builder he only brought one type C MCB 'coz he didn't know we have separate up- and downstairs lighting circuits. He offered to cpme back and fit the other one but asked if I was happy to fit it myself (to save hime making a 40 mile rould trip) if he sent me an MCB. No problem - with the power off - but now I'm wondering if I can/should do it live. The CU is an MEM Memera2000
If you have to ask you're obviously not confident\experienced\daft enough. Don't do it live. ..
SJW A.C.S. Ltd.
Yep, that's exactly what I thought. Thanks for confirming it :-)
Rubbish. Brushing a suspect cable with the back of a finger is a well-proven way to check whether it is live or not. Just make sure you're not standing in an earthed bucket of water at the time.
It is an extra safety level, just in case the circuit you isolated isn't the right one. I've worked on a 3-phase supply that I though was dead before discovering that one phase had an extra connection to the incoming main. As I was standing on 6mm thick rubber safety matting at the time, I didn't get a shock, even though I was working on a brass terminal with an uninsualted allen key.
Colin Bignell
How do you think they joint cables in the street ?
Dave
Do us a favour and give us a demonstartion.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.