Posted By derek mc
Engineer powers down machine. Checks for dead etc. Opens cabinet. Connects up proper test leads to terminals in cabinet. Erects barrier 3 feet from open doors. Puts up signage etc. Powers on system and checks voltage on meter from outwith the barrier. Is this working live?
This is causing some debate. Can anyone help. I have checked acops and I belieeve this not to be live working.

Thanks

Posted By Ken C
Derek

Anything that involves live electrical systems is working live. However, when I worked for an M&E contractor the disgnostic testing (to which I think you are referrring to here) was covered directly by the 16th Edition.

What you need to do is place a robust risk assessment and safe system of work in place. I know, teaching you to suck eggs etc.

I have a copy of what was done previously, with HSE assistance and would be happy to e-mail you if requested. Unfortunately, I don't have it with me at work today.

For guidance, we considered an operative to working on or near an electrical system if there were less than two physical barriers between them and the conductor. Using the metal armouring around the cable as one, and the metal conduit as two. Plastic conduit was not counted unless there was clearly no chance of it being compromised.

Contacts within the equipment usually have some sort of shielding/guarding so perhaps this can be used as one of the barriers?

I hope that helps.

Ken C.

Bored at work because I had to turn up with nothing to do...