Who's Buff ?
;-)
rcd can be at the mains or local to hot hub if using swa , either is ok.
yes , connect swa and earth conductor together at the CU.
is it better at mains so then swa protctect by the rcd?
Discuss Hot tub installation ! in the UK Electrical Forum area at ElectriciansForums.net
Who's Buff ?
;-)
rcd can be at the mains or local to hot hub if using swa , either is ok.
yes , connect swa and earth conductor together at the CU.
Unless there's a specific reason, why can't you export it?
There are specific circumstances where you cannot use Tncs (like caravan parks I believe, it has to be rodded, as a fellow forum member I know who works alot for the Caravan Club will testify).
Is a hot tub one of these instances?
The only other problem is with services like water pipes - which means main bonds also need to be extended- which could be a pain.
agreed , so in that instance you have a choice of running a 10mm earth bond from the MET to the outside pipes or , bang in earth rod near hot tub.
most choose the earth rod method if its a long run back inside and they're only using a 6mm cable anyway.
Apart from that I 'd rather have a Zs of 0.3 than 37 or 17 or 7 .....?
so would i lol
Rcd is statistically more (much more) likely to fail than loosing the PEN.
Now I am being devils advocate!
last hot tub i did was off TNS , didnt bother with any rods :-D
Oh don't start this thread again! I've made up my mind with these tt all the way
Reply to Hot tub installation ! in the UK Electrical Forum area at ElectriciansForums.net
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