Testing RCD on shower circuit

[malcolmsanford]

Northern T........................ I was going to then bang on about RCD are additional protection, this that and the other lol

Plus I hate to be honest just seeing RCD protection, especially in domestic

 

[telectrix]

but 434.2 applies. the cable size is reduced from the tails size ( 16mm?) to the 6mm or 10mm of the shower circuit, so IMO that 6mm ( or 10mm ) should be protected with a suitable overload device. also, if the tails are henley blocked before the main CU, then any fault current is on the DNO fuse.

 

[malcolmsanford]

but 434.2 applies. the cable size is reduced from the tails size ( 16mm?) to the 6mm or 10mm of the shower circuit, so IMO that 6mm ( or 10mm ) should be protected with a suitable overload device. also, if the tails are henley blocked before the main CU, then any fault current is on the DNO fuse.

It's that IQ mate .....................always stirring things like you can't export a PME earth:devilish:

 

[IQ Electrical]

Meeeeeeee?

 

[jamminuk]

export pme earth? also what about the shock from the earth i got?

 

[telectrix]

cpc not earthed. broken connection somewhere. do a R1+R2.

 

[IQ Electrical]

export pme earth? also what about the shock from the earth i got?

Malcolm meant things like 'you CAN export a PME earth' many believe you can't, without actually understanding the requirements.

 

[jamminuk]

what is meant by exporting PME earth though?

 

[telectrix]

IMO "export " is a bad term. to export something means moving it from 1 place to another, when you are not doing that, you are extending it.

 

[jamminuk]

if you do a like for like swap are you obliged to perform tests? obviously for your own piece of mind