Testing RFC in earthed steel conduit...

[DNS1]

Excuse my ignorance on this, never had to test a RFC when the conduit was being used as the CPC.

Obviously can't do the usual test for continuity so can't tick that box on the form, will just note that it's an earthed conduit set up.

Where I get more confused is the R1+R2 measurement seeing as I can't cross-connect the line and CPC at the board... What's the conventional thing to do in this case? Just put a link between the adaptable box where both ends of the conduit terminate and the line conductors then test at each outlet as normal?

Cheers!

 

[Sintra]

Just do an R2 at every outlet and record that.

 

[telectrix]

ajust link the conduit to the line conductor at DB, then measure between them at whatever points you want. another method would be to use a wander lead an measure R2 ( the conduit alone ).

 

[DNS1]

Just bought a new R2 lead so will use that.

Cheers

 

[Bobster]

I use a ductor tester on metal containment systems. Probably out of the price range of most lads if you don't do much work like that.

I'd just use the methods already stated.