Yes you are correct.Fault-finding is a slightly different matter.
The usual discussion is about 'in normal service' (rather than during fault-finding) and the argument is usually one of 'convenience'. However, my view is that if that one is having to make the 'trek' from outhouse to main house to reset an RCD often enough (i.e. more than 'once in a blue moon') for it to be a significant 'inconvenience', then one probably ought to be reviewing the electrical installation of the outhouse and/or what one is doing (and with what equipment) in the outhouse - particularly given that the trek' is often no more than a dozen paces or two!
Kind Regards, John
Sure - but, as I said, unless the outbuilding's electrics are dodgy or one is doing dodgy things (and/or with dodgy equipment) in the outbuilding, that 'convenience' will only show itself 'once in a blue moon'. Off the top of my head, I can't recall any occasion on which something going on in one of my outbuildings resulted in an RCD (anywhere) tripping - if it's happened at all, it must have been a good few years ago (since my memory is still not all that bad ).... I was merely trying to add weight to the previous suggestion the convenient location for the RCD is generally in the outbuilding.
Again I can only agree with you.Sure - but, as I said, unless the outbuilding's electrics are dodgy or one is doing dodgy things (and/or with dodgy equipment) in the outbuilding, that 'convenience' will only show itself 'once in a blue moon'. Off the top of my head, I can't recall any occasion on which something going on in one of my outbuildings resulted in an RCD (anywhere) tripping - if it's happened at all, it must have been a good few years ago (since my memory is still not all that bad ).
Kind Regards, John
You can get porcelain connector blocks.
Anything with a clamp then:
View attachment 250852
or how about a henley block?
https://www.toolstation.com/service-connector-block/p31284
https://www.cef.co.uk/catalogue/pro...xiW2NP24vD683-eES3hoC-AkQAvD_BwE&gclsrc=aw.ds
16mm Thru crimps but you will ned sleeving and the correct crimper
Or Henley blocks
It might be acceptable and possible to gland the armour into the wall of an earthed metal box and extend the inner cores and sheath onward through the house using conduit as extra mechanical protection to the inner sheath and cores.
Probably not easy if it is a long run inside the house but does avoid the need to joint the cores.
If it's going in a galve box I'd tend to go for din terminals.
Picked at random:But maybe that's just because I'm a panel guy and would have had stock.
If you do this and any part of the T&E is concealed in a wall or partition and not enclosed in metal conduit then you will be forced to have 30mA RCD protection at the origin of the cable. Whereas if you used SWA for the whole run you could have the 30mA RCD protection at the outbuilding. Depending on what exactly is being done in the outbuilding having the RCD protection locally may be highly desirable.
Explain this properly please.
You say henley blocks are chunky, you used to get single pole ones that were thinner, though not seen then for a while, Henley is a brand name, so maybe made by others
These are not as big but a pair may be:You say henley blocks are chunky, you used to get single pole ones that were thinner, though not seen then for a while, Henley is a brand name, so maybe made by others
It will feed another small consumer unit with RCBOs, which then will feed the car charger and any possible additional things. Everything in the house that will feed this is already fitted with RCBOs
Don't be so sure about that. I have had only two problems with wago's, never got to the bottom of one but the second was in a motor terminal housing, the motor had been replaced and the wiring didn't all reach so 2 wires extended, both were showing signs of overheating, one had burnt right through the wire.I replaced everything with wago boxes and wago 221 connectors, now I can rope skipping with the wiring with zero maintenance.
Bare in mind the T+E Earth will be significally smaller, meaning crimps will be unsuitable for that, or was you planning aditional seperate 16mm Earthconnect 3x 16mm conductors to other 3x 16mm conductors
The plastic has no bearing on the electrical connection, or the likelihood of terminal screws becoming loose. Virtually all electrical accessories etc. (including your CU) are full of (metal) screwed connections surrounded by some sort of 'plastic'.I don't like these plastic terminals with screws, I've seen them getting loose with time, sparks coming out and burning.
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