Is this fusebox illegal
- Thread starter Psmk222
- Start date
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Unfortunately for all of us it does, however.
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'Additional' to what? If they do anything at all, that surely means that one would provide protection which is 'additional' to what would exist if one didn't had it. Since you appear to have a copy, could you please tell us exactly was BS 7288:2016 says about 'additional protection'?
As I wrote last night, I don't understand this 'remove' claim of yours. As I said, there is no reference to BS 7288:2016 in BS7671:2008 or either Amd2 or Amd3 thereof - and any early edition of BS7671 would obviously have been far too early to contain a reference to a 2016 Standard.
... so when do you think it was 'removed' from BS7671, given that I can find no evidence that it was ever there!
Kind Regards, John
Quite. As I've just written, I can't see how one can 'remove' something if it were never there! I've also just commented on the fact that it's very hard to see how any functioning RCD could not provide protection 'additional to' what would be there without it.
As I wrote last night, 531.3.6 appears to be an explicit list of devices which meet the requirements of 415.1 - and that list does not include BS
BS 7671 said:
Kind Regards, John
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I think this wording of 'additional protection' is being treated like 'supplementary bonding' in that it is a specific separate thing in itself rather than merely meaning 'additional' or 'extra' bonding.
No matter what the regulations state the definition of the word 'additional' (like 'supplementary') is obvious and indisputable.
No matter what the regulations state the definition of the word 'additional' (like 'supplementary') is obvious and indisputable.
I don't have a copy as I can't afford one.
However I have been made aware that it states that these devices are not suitable for providing additional protection, and are for use where there is already upstream RCD protection to provide the additional protection. Therefore these don't particularly serve any purpose at this time and JPEL/64 had no choice but to omit them from BS7671.
It's not an EN. It's just a BS.
Pure hearsay, then - and difficult-to-understand/believe hearsay at that!
As you go on to imply, if what you are saying were true, it would mean that FCUs to BS 7288 are not fit for any purpose, if they don't provide adequate residual current protection unless there is another RCD upstream - but I find it very hard to understand why there would be a Standard relating to things which were not fit for any purpose. I therefore suspect that something has gone a bit wrong with your 'hearsay'!
Kind Regards, John
Quibbling. You must have seen that I typed it correctly several times, and that that was just one typo. Anyway, now corrected.
Who knows - I can't read the minds of the authors of BS7671.
Anyway, what Risteard is now suggesting, on the basis of hearsay, seems even more ridiculous - since the implication seems to be that devices whichcomply with the BS he keeps citing are not really fit for any purpose! Are the BSI that mad?
Kind Regards, John
From what im reading and not being a qualified spark in any way......wiring the bath via an rcd spur from (for example) a plug socket will provide additional protection as in the spur will trip and kill power to the bath instantly ...whilst the wire in the fuse at the meter will also pop killing power to the said socket.......
It's factual "hearsay" whether you like it or not.
I don't disagree that these devices have no real useful purpose in these circumstances. In fact I suggested as much.
Yes, but the things/situations that would cause an RCD to trip and a fuse to blow (or an MCB trip) are totally different.
The RCD will trip when there is a (often very small) leakage of current to earth - e.g. through a person experiencing an electric shock (or due to some 'leakage' fault in the equipment - e.g. due to water ingress). A fuse will blow (or MCB trip) when the current flowing in the circuit is excessive - such as when there is a 'short circuit' somewhere, or a major fault in the equipment).
Kind Regards, John
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