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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Multiple appliances on a fused spur
Hi Hidden away in a cupboard I have two fused, switched, connection units each of which supply an electric towel rail in an adjacent bathroom and a cloakroom. Inevitably no-one ever remembers to turn these things off, so I'm contemplating getting the connection units replaced with some kind of run-down timer, such as http://www.sangamo.co.uk/web/site/Pr...owersaver1.asp None of those kinds of gadgets seem to be fused, so I still need some kind of fused spur off the ring main upstream of them. I'm also assuming I need a separate timer for each of the two towel rails. Question - any reason why I can't use a single fused connection unit to supply both of these timers? That would already involve installing one extra pattress box, and I really want to avoid having to add two. But there are probably better solutions that I haven't thought of.... Regards -- Roger Morton |
#2
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Multiple appliances on a fused spur
On Jul 1, 12:25 pm, ) wrote:
Hi Hidden away in a cupboard I have two fused, switched, connection units each of which supply an electric towel rail in an adjacent bathroom and a cloakroom. Inevitably no-one ever remembers to turn these things off, so I'm contemplating getting the connection units replaced with some kind of run-down timer, such as http://www.sangamo.co.uk/web/site/Pr...owersaver1.asp None of those kinds of gadgets seem to be fused, so I still need some kind of fused spur off the ring main upstream of them. I'm also assuming I need a separate timer for each of the two towel rails. Question - any reason why I can't use a single fused connection unit to supply both of these timers? That would already involve installing one extra pattress box, and I really want to avoid having to add two. Fused spurs can have an arbitrary number of appliances connected to them. However, *all* the wiring must be rated for the full current through the fuse. (And voltage drop calculations must assume that the appliance at the end of the longest piece of wire is drawing all the current.) |
#3
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Multiple appliances on a fused spur
In ,
Martin Bonner wrote: On Jul 1, 12:25 pm, ) wrote: Question - any reason why I can't use a single fused connection unit to supply both of these timers? That would already involve installing one extra pattress box, and I really want to avoid having to add two. Fused spurs can have an arbitrary number of appliances connected to them. However, *all* the wiring must be rated for the full current through the fuse. (And voltage drop calculations must assume that the appliance at the end of the longest piece of wire is drawing all the current.) Thanks - I'd assumed (hoped) that was the answer, but I've googled unsuccessfully for anything that explicitly says so. Each of the towel rails is worth no more than 200-300 watts, yet both of the existing fuses are 13A. I'm pretty sure a single 13A unit can cope with both of them :-) Thanks again -- Roger Morton |
#4
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Multiple appliances on a fused spur
On Jul 1, 1:38*pm, ((((DefaultRealName)))) wrote:
In , Martin Bonner wrote: On Jul 1, 12:25 pm, ) wrote: Question - any reason why I can't use a single fused connection unit to supply both of these timers? *That would already involve installing one extra pattress box, and I really want to avoid having to add two. Fused spurs can have an arbitrary number of appliances connected to them. *However, *all* the wiring must be rated for the full current through the fuse. *(And voltage drop calculations must assume that the appliance at the end of the longest piece of wire is drawing all the current.) Thanks - I'd assumed (hoped) that was the answer, but I've googled unsuccessfully for anything that explicitly says so. Each of the towel rails is worth no more than 200-300 watts, yet both of the existing fuses are 13A. *I'm pretty sure a single 13A unit can cope with both of them :-) Thanks again sounds fine, 240w is only 1A NT |
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