I'm thinking of upgrading our existing electric shower to something a little more powerful. However, I'm not sure what current cabling is.
The cable has the following markings:
BASEC BS 6004 "4" ATOM KABLO 2x10 +4
Does the 2x10, mean 10mm?
Thanks
Dave
My guess is 2 X 10mm square 4 core
I've just checked at the switched end, and it's 3 core.
Apologies for the confusion, maybe I should have stated the cable will be 3 core, but consists of 4 heavy copper cores per strand of each colour so to speak
Seven strands per core, and the +4 is the CPC size:
BASEC = British Approval SErvice for Cables,
"4" = dunno, pass;
Atom Kablo = the manufacturer (Turkish);
2x10 = no. and size of the live conductors, 2 x 10 mm^2;+4 = size of the CPC (circuit protective conductor, aka earth), 4 mm^2.
Brilliant. Thank you!
According to:
Many thanks
Dave
Cables,
Yes, but voltage drop is not the only consideration. Consult Table 7.1 in the IEE On-Site Guide for reliable information.
10/4 cable on a 45 A circuit is OK up to 49 m on voltage drop, but that length may be reduced or the cable disallowed due to earth fault loop impedance considerations. If the MCB is Type B to the current standard (BS EN 60898) then the length limit is 35 m if you have TN-S earthing or 49 m for TN-C-S (PME). However with an old Type 2 MCB the circuit would not comply with the regs at all with TN-S earthing, unless you fit an RCD to provide earth fault disconnection.Have something to add? Share your thoughts — no account required.
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