(from youtube) See if you can guess what caused the fault

[skotl]

I like this guy - does a decent job of explaining things and seems a genuine feller.

See if the sparks (professional or amateur) can guess why he got a belt off an "isolated circuit"? He fully accepts the blame early on when he says he checked L-N, but not L-CPC. Ended up getting a hella jolt when he later discovered that even with the RCBO off, there was 170V L-CPC and 130V N-CPC.

The cause ended up being a pretty horrific bodge...

By the way, one of the things I like about him is that when he finds something dangerous like this at 9pm he doesn't say "I'm off home and will sort it in the morning" - he stays until he's made it safe.

 

[Robotstar5]

Not watched the video, but any decent sparks should do 3 dead tests, L-N, L-CPC and N-CPC followed by proving the tester.

I used to get ribbed by the young 'uns at work when I would test a circuit after throwing the isolater, my usual answer (depending on the year) was I'm 56 and I plan to reach 57.

 

[Woody.v8]

Even more relevant now with loads of bonded earth systems that are aging and not updated, also not helped by incorrectly installed ev chargers with no extra cpc.

 

[Misterg]

I like this guy - does a decent job of explaining things and seems a genuine feller.

I've watched a few of his videos in the past and have to say that I felt he comes across as a bit of a drama-queen most of the time, so blocked his channel. He's very quick to criticise others on the most pedantic details, but his 'belt' was due to his poor practice in checking for dead. Always, always check live (line) to earth. Interesting fault though.

I do like Dave Savery, Nick Bundy and Green Hawk Electrical if you're into that sort of thing.

 

[sg66]

Live feeding back from another circuit as it's electric not magic I presume.

I have had a few jolts in my time, entirely mostly of my own doing.......

 

[dobbslc]

I had a similar fault in a school where some nob had used a neutral from one board and a live from another for an emergency light , resulting in me getting a massive shock between neutral earth off the board I was working on that was isolated with a double pole switch fuse.
This was made even worse because the two boards were fed from two different phases so I got 380 volts across my chest!
Lesson learned on that one! I now always check between neutral and earth when messing around with someone else's dodgy installation.