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The original question can you pair it with the SPD no, mode 3 chargers need connecting to a dedicated circuit.
Discuss Does a SPD need a dedicated MCB? in the UK Electrical Forum area at ElectriciansForums.net
Yes I know but I live in the real world. Regs like this were brought about so you didn't piggy back them off something like a socket circuit that was already loaded.The original question can you pair it with the SPD no, mode 3 chargers need connecting to a dedicated circuit.
None of that has any relevance whatsoever. As I said I don't care what you do but you came here and asked. Do what you like and bodge it that is clearly the way you operate because you are ignorant to improving your knowledge.Yes I know but I live in the real world. Regs like this were brought about so you didn't piggy back them off something like a socket circuit that was already loaded.
Lets take an immersion circuit, they used to run off a fused spur from the ring without any problem whatsoever, then someone said dedicated circuit only which made sense because all of a sudden socket circuits had more than a wooden lamp plugged into them.
Would I connect an immersion to the ring circuit nowadays? No way. Would I wire a boiler from the same circuit as the new immersion feed I've just wired, absolutely if it saved a second run of 2.5 across the house because the boiler uses such a minuscule amount of power that it wont affect the immersion circuit (that will never be used) one little bit.
The SPD uses zero current, it could probably be connected to the bus bar right on the other side of the MCB without any issue whatsoever, the electrons don't know where its connected so apart from upsetting someone who wrote a vastly overpriced book, in the grand scheme of things, it doesn't really matter.
And that philosophy has been proven the world over by countless millions of people.
Until the immersion element blows down to earth and you've suddenly got immersion and no boiler either.Yes I know but I live in the real world. Regs like this were brought about so you didn't piggy back them off something like a socket circuit that was already loaded.
Lets take an immersion circuit, they used to run off a fused spur from the ring without any problem whatsoever, then someone said dedicated circuit only which made sense because all of a sudden socket circuits had more than a wooden lamp plugged into them.
Would I connect an immersion to the ring circuit nowadays? No way. Would I wire a boiler from the same circuit as the new immersion feed I've just wired, absolutely if it saved a second run of 2.5 across the house because the boiler uses such a minuscule amount of power that it wont affect the immersion circuit (that will never be used) one little bit.
The SPD uses zero current, it could probably be connected to the bus bar right on the other side of the MCB without any issue whatsoever, the electrons don't know where its connected so apart from upsetting someone who wrote a vastly overpriced book, in the grand scheme of things, it doesn't really matter.
And that philosophy has been proven the world over by countless millions of people.
Most of thats rubbish, you must know that. If the immersion blew you would simply switch it off at the DP switch and carry on using the boiler circuit, apart from the fact the immersion is only used if the boiler breaks, not the other way round. As for blowing the PCB fuses, how? you could spur off a socket for a boiler FCU and plug a big heater into the socket, if the heater wen't bang that wouldn't affect the boiler would it.Until the immersion element blows down to earth and you've suddenly got immersion and no boiler either.
Also the immersion would be on a high current MCB the inrush current and high fault current of a earth fault would likely blow the PCBs of the boiler.
Of course it'll work fine but there's a reason we separate loads and design circuits based on the load they carry and separate vulnerable equipment.
Put the SPD on its own breaker as the manufacturer requires in their data sheet. And a 3 phase charger will require more than just a MCB to protect it. The last fast charger I helped to put in had to have a 4 pole breaker that disconnected the earth and an earth cage under the concrete.
But you'll just stick it in with the SPD to save on a new enclosure just below the DB.
I do care, I don't do dangerous stuff, I just don't do everything anyone tells me to do, if I think a reg is daft or over the top I'll do what I think is right, I use common sense instead of blind faith. The limited instructions I linked to earlier state that it has open PEN protection and ground protection (whatever that is) you have to go into the display settings to turn it on apparently.If this is for outside charger and it doesn't incorporate open PEN protection you need to put measures in place. Most do now but something from EBay I would be dubious about.
But hey you don't care.
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Reply to Does a SPD need a dedicated MCB? in the UK Electrical Forum area at ElectriciansForums.net
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