bad workmanship??!

[Sparky28]

Hi lads, just had a look at some wiring done in a friends bathroom. All looks good apart from elec rad.....

Feed to flex output for rad in 1.5mm t@e but the feed to the rcd fuse spur (outside of bathroom next to skt)is 0.75 flex.

Not seen this before, is it ok?
Rad is 400w

Cheers

 

[wade88]

0.75 flex can handle about 6 amps at 230v. Ohms law says 6 x 230v = 1380W,So whats the problem?

 

[Sparky28]

Just looked a bit shoddy that's all but happy with your answer cheers mate

 

[telectrix]

all depends on what rating is the ocpd protecting that flex. what's the betting it's 32A.

 

[wade88]

Whats the fuse rating inside the RCD fused spur bud? As Tel as rightly pointed out, ensure its a 5amp fuse in there. If its only running a 400w Rad, a 3 Amp fuse would be ideal.

 

[telectrix]

feed the FCU from the adjacent socket with 2.5mm T/E. 10 minutes work.

 

[Sparky28]

The fuse inside is a 3amp which happy with but I assume the skt is on the ring main with 30amp fuse