Discuss Borrowed Neutrals ! (gotta be careful) in the UK Electrical Forum area at ElectriciansForums.net
keeps you on your toes
and sometime across the other side of the room flat on your back...
I had one on some three phase. Had 3 banks of lights all 240v, isolated the bank I was changing fitting on. Went up ladder tested for dead all seemed good. As I disconnected the neutrals one side touched my thumb one my finger, lights went out then was fed via my hand. Shock of my life muscles froze, slowly fell back off the ladder, ended with third degree burns on 2 fingers and a few grazes from falling. Lucky escape.
If you make anyone aware of this that wasn't before and they claim to be electricians then they are kidding themselves IMHO ... its part of your college work and can be a killer if you didn't pay attention.... for all the other out there that receive a nasty supprise this way then thats why we spend yrs learning how to do our trade safely , treat every circuit that you haven't wired yourself --- though it may have a borrowed Neutral and work accordingly and you wont fall foul of this set-up.Hi Lads, how are you all? Was just wondering if any you have come across "the hidden killer" (borrowed neutrals)? Thought it would be a good idea just to raise awareness. Thanx.
seen this exact scenario this afternoon ! was a common finding on the landing light!I just did a CU change, and found the hall upstairs pendant taking its live from downstairs & neutral from the upstairs circuit, being wired this way in the 70's with no RCD its likely it would not have reared its head, luckily, I could rewire without too much disruption
To true, Darkwood. I can't remember covering this in college. Even if it makes just one youngun stop and think before he chops (and grabs) it's well worth chatting about. Just reiterating the need to stop and think, only for a minute. could well save a nasty shock.
The subject of borrowed, pinched or stolen Neutrals ( depending on where you come from!) was one of the first things I was taught as an Apprentice, and drummed into me by the man I worked with, a flat capped, bib-and-brace overalled, collar and tie wearing Sparks of the old school. Brilliant chap who had probably forgotten more than I've learned lol!
I hope they still stress this important subject at college now ??
Do they leave it to the employer then? Apprentices should learn this stuff from day one !
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