These are in fact two circuits and I will explain this later, and assuming this, these are not now electrically separate as they have been connected together.
This brings us to the definition of what a circuit is.
This is where your argument gains ground and I have sympathy with it although...
As I said, the wording is not perfect but it is obvious to me at least that the intention of the Reg is clear.
Would you do the same with other circuits in that board if the loads allowed? Rings?
I’m afraid I agree with Stroma. The regs may not be written in the clearest way to avoid confusion or prevarication, but the intention of the regulation in my opinion is clear.
Just a thought, if the OP did that with two lighting circuits to free up some space, why not do it with some other...
It’s totally different. BS7671 doesn’t have a section devoted to metal shipping containers but it does for pools. I agree that you should start a new thread.
BS7671 has regulations on ‘out of ground’ pools as well as ‘in ground’ pools. My view is, and this is directly from the regs, and we do lots of pools, and we’ve not been pulled yet in inspections, would be they this is an out of ground pool. Even if the pool has plant, which I would see no need...
The 30mA RCD is the key. It will disconnect the supply before the current gets to a dangerous level (50mA). If you didn't have the TT, then the tank would remain live and the RCD would not operate. That is until someone or something created the earth path.
Which do you think is safer?
Firstly I presume you mean transformer by the term regulator?
If you had a 230w 230v lamp that was supplied by 230v then it would draw 1a. Similarly, a 230w 12v lamp would draw somewhere around 19.17a.
But the 230v lamp will hardly light at all at 12v and similarly the 12v lamp will blow...
What is the tank sitting on/ in?
In the case of swimming pools, they are in or on the ground (earth). The idea behind pool bonding is that everything touchable is brought to the same potential and therefore minimises shock risk. TN-C-S earthing systems are not allowed due to the risk of a...
Why dont you call the manufacture? If it's a well known make they will have a technical dept and are usually very helpful. If it's not a well known make, you should have gone for a well known make!
Quick update: we've been back after the client wanted a couple of other things checked . Turns out the guy has run a 4mm or 6mm SWA to a 1 gang flush box. From here he's taken two 2.5mm twin and earths for a RFC and connector blocked these to the SWA.
This chap is a class act!
We’re waiting for him to ‘look into it’ and come back to the client but that was nearly a week ago now and I’m not holding my breathe. In any case he hardly speaks any English apparently so his we may need an interpreter for his opinion.
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