oldandtired
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I want t run a spur(using 2.5mm cable) from a socket on a ring main . how long can the spur cable be?
Discuss how long can a spur cable be in the UK Electrical Forum area at ElectriciansForums.net
not sure how to do v/drop calc , the spur will be approx 4m. i want to run a tumble dryer from the spurred socketThere are no specific regs as to how long it is.
However it will have to meet regulations regarding volt drop calculations.
Lots of imponderables to deal with Voltage at final destination ( have any volt drop calculations been done?)I want t run a spur(using 2.5mm cable) from a socket on a ring main . how long can the spur cable be?
What is the Electrical load of the tumble dryer?not sure how to do v/drop calc , the spur will be approx 4m. i want to run a tumble dryer from the spurred socket
Lots of imponderables to deal with Voltage at final destination ( have any volt drop calculations been done?)
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What is the Electrical load of the tumble dryer?
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thought about extending ring but nearest point to break into it easily and fit conector block will be 6/7m . The 4m length would be fed from back of socket.if you're going to run 4m 2.5 cable, why not run 2 cables and extend ring in existing socket using wagos or ideal in line splice connectors. it's less than a fiver for extra materials
You will need to be certain that the socket you intend spurring from is actually part of a RFC and not already a spur from the RFC, and your addition is NOT a spur from an existing Spurthought about extending ring but nearest point to break into it easily and fit conector block will be 6/7m . The 4m length would be fed from back of socket.
the socket I am intending to spur from is part of the ring main. and is not a spurYou will need to be certain that the socket you intend spurring from is actually part of a RFC and not already a spur from the RFC, and your addition is NOT a spur from an existing Spur
thanks , will have another look at optionsif you're going to run 4m 2.5 cable, why not run 2 cables and extend ring in existing socket using wagos or ideal in line splice connectors. it's less than a fiver for extra materials
see picture in post #9. it's 1 I did last year. obviouslytrhe red/blacks are existing. the brown/blues are my rfc extension., clipped about 3m under floor in crawl space. ( this is what thin apprentices are for. ).the socket I am intending to spur from is part of the ring main. and is not a spur
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thanks , will have another look at options
Don't say that, those none the wiser will take as licence to take a 2.5 T/E spur to their domesticated garden shed or barbeque position at the bottom of the garden!In all seriousness if we are talking domesticated dwellings then it’s unlikely to ever exceed maximum permissible lengthy
Don't say that, those none the wiser will take as licence to take a 2.5 T/E spur to their domesticated garden shed or barbeque position at the bottom of the garden!
Because there is no pointif you're going to run 4m 2.5 cable, why not run 2 cables and extend ring in existing socket using wagos or ideal in line splice connectors. it's less than a fiver for extra materials
because today he wants to run a tumble dryer; next week he may want a dishwasher and a washing machine in the same location. as it's only a 4m run, why skimp for the sake of a few quid?Because there is no point
nopebecause today he wants to run a tumble dryer; next week he may want a dishwasher and a washing machine in the same location. as it's only a 4m run, why skimp for the sake of a few quid?
but at the moment he wants to run a tumble dryer, end of, perhaps he might want a sauna, who knows, but for a tumble dryer, its finebecause today he wants to run a tumble dryer; next week he may want a dishwasher and a washing machine in the same location. as it's only a 4m run, why skimp for the sake of a few quid?
There would be no reason why a WM and DW could not both run on a double socket from a properly wired spur.because today he wants to run a tumble dryer; next week he may want a dishwasher and a washing machine in the same location. as it's only a 4m run, why skimp for the sake of a few quid?
don't dispute that, but for the cost involved in extending the rfc, why limit the work to a single accessory point.nope
but at the moment he wants to run a tumble dryer, end of, perhaps he might want a sauna, who knows, but for a tumble dryer, its fine
he 's got a Tardis.That's a hell of a big cupboard he has there... room for a tumble drier, dishwasher, washing machine and now a sauna !!
so you'd be happy pulling 4.5 kW off a double socket, rated at 20A?There would be no reason why a WM and DW could not both run on a double socket from a properly wired spur.
There is no reason why not, two laundry appliances are often plugged into a double socket and neither appliance will pull full load constantly even when running together. 4.5kw equates to 19.6a @ 230v, in practice it's likely to be 18.75a @ 240v. I would not claim a spur would be the best way to do it, but neither is it wrong, especially as the OP has stated the intention is only to run one appliance.so you'd be happy pulling 4.5 kW off a double socket, rated at 20A?
mupost was in reply to fairlight's post re tumble dryer and washing machine both on a twin outlet. each will have a 2.2kW heater. add a bit for the restof the machines'bits.... 4.5kW.Its a tumble dryer, unless I've missed something it won't be 4.5Kw, even if it was, its still not 20 amps, why do you think spurs are legal Telectrix, you're over complicating it, no need to extend the ring
It complies for two appliances plugged into a double socket on a spur. A preference for a ring is a perfectly legitimate point of view. But to suggest that a spur supplying a twin socket does not comply is plain wrong. And regardless of a ring or spur, the load on the socket will be the same.i don't disputethatfor 1 appliance aspur complies, but that the cost and effort to extend ring is minimal.
I'm with you on this one Tele... I'll always try to extend a ring rather than spur.I'm not arguing that it complies or not. just that for what's involved, extending the rfc would be my preference. with a spur, if OP were to want another outlet adding at some time, he'd have to retro fit a FCU.
Reply to how long can a spur cable be in the UK Electrical Forum area at ElectriciansForums.net
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