Commercial EIRC testing tips advice

[MFS Electrical]

Insulation testing between live conductors is wholly unrealistic for periodic inspection and testing (even domestic) and serves little purpose. You would be as likely to introduce a fault as find one.

Why do you think it would introduce a fault at 500V cables are designed to take IR testing in their stride for years upon years upon years? And why would it be unrealistic? Just because it takes longer?

 

[The Ghost]

As GN3 says at 3.10 on, it is not practical time wise to do IR between live conductors, more likely and useful between LN-E. However my ideal is to do so where practical. Don't get me wrong with 50 fluorescents at 4 m. height there is no way I am going to get up there and disconnect caps and tubes and then put it all back. No chance. But this would be a lim on the EICR. I think @Risteard is right about the chance of introducing a fault as when you dismantle etc. you may not put it back right or whatever. And of course dismantling is discouraged. I also agree with @westward10 that it makes up a small part of noted codes. Still it bugs me personally to leave out IR for L-N. despite the foregoing, it probably always will.

 

[Gazthesparky]

I have sent a response back to the customer asking for a price. I have said that it needs a site visit to assess the job fully. I haven't had a response back so i don't think ill hear from them but hey ho you win some you loose some

cheers for the advice and tips