High Zs on lighting circuit

[davesparks]

Would anyone else code it C1/C3??

I think C2 seems correct, just always worth asking other people's opinions and thoughts how they have come to it.

What do you, as the qualified experienced person, think it should be coded?

 

[Maxstone89]

As said i think c2 but was seeing if the rcd made any difference to the code required.

 

[telectrix]

not in my book. with a reading of 700 odd ohms, that could easily become >1667 ohms and so negate the use of the RCD as fault protection. C2 all day.

 

[HappyHippyDad]

I would be putting a C2.

If it had been a TT then perhaps a C3 if it had a thick, deep, stable earth rod or perhaps mulitiple earth rods. But if your other Zs figures meet the required figures and this 'one' doesn't then I guess the earthing arrangement must be as you have stated (PME), so I would say a C2.

I find it strange when I put down a C2, or perhaps multiple C2's and the customer doesn't get back to you! This has happened twice and I know for certain that on one occassion they have not had the work carried out.

 

[DuaneMHunt1976]

I think when i did my 2330 Level 3 and the EAL 2395 they both gave me this Document as as kind of ref guide

http://www.electricalsafetyfirst.org.uk/mediafile/100404922/Best-Practice-Guide-4-Issue-4.pdf