Discuss Connecting a fan to shower power in the UK Electrical Forum area at ElectriciansForums.net
A fused spur from the light circuit, then to a flow switch on the shower supply. From the flow switch you can take a P/L, SW/L and N to the fan.
ok if you are determined to go down the route of connecting into the shower here goes,put a current transformer around the live on the load side of switch,connect this to a current sensing relay,then take a permanent live and neutral from the lighting circuit through this to the fan.should only cost about 60 quid but hey ho if that's the route you insist on going down and connecting to the shower.
:mad2: So you think cutting into a 6mm2 cable which is controlling a shower and adding a Joint then teeing off it for a fan is pretty cool? I would avoid at all costs interference with a conductor feeding a shower, I expect others who were trained properly like myself over a period of years under a professional mentor would think so to. As your other question regarding the relay, IMO you are totally over complecating a very very easy job, why go to all the bother of this, were talking about a fan in a Domestic bathroom not a door entry system which is fed via relays on a fire alarm system. Tell you customer to have a plain simple PIR controlled fan fed from the lighting circuit, you could have it on a pull cord or on a timer, but fed from the lighting circuit and not the Flucking Shower feed, comprende.Wow! I never knew dummy spiting kids worked in the electric trade :rolleyes2:
Please do not comment on this thread unless you can be helpful and explain why certain ideas cannot be used with backed up evidence. Rather than just ranting on.
Thanks to all who have suggested why my original idea may not work due to the neutral. I’m still looking into that.
But I still haven’t had answers on why the shower circuit can’t be used as a power supply for another circuit and the use of junction boxes, even if the total current load is within the cables tolerance as per regs book?
Just too clarify, yes I can take the easy option of a humidity sensor or pir but as stated it does not solves the job brief. Ie past humidity fans fitted can be temperamental and a pir will cause the fan to run pretty much all day. If someone gives me a problem I like to try to solve it so they are happy, don’t you guys?
Thanks for the idea of a fan with a built in pir and timer, but the original fan hole is already at the far end of the bathroom where someone will not be able to walk past it in order to set it off. Making a new hole is not an option.
Thanks for the 3A idea, ie the lights circuit into the bathroom. Although this does solve the problem of using 3A fan it does not solve the problem of having the fan only work if the shower is in use.
What about the idea of a switching relay, anyone done it before?
Dear Guinness Book Of Records.....I would like to claim the record for the longest thread ever posted on a UK forum......
Yours Sincerely
TAZZ
... trained properly like myself over a period of years under a professional mentor .....
Those were good days.......if you ask the OP nicely....he may fit a immersion heater in your tin bath for you.....and bond it...!!!Why not just open the window like we used to do when I was a kid? That was after we had moved up from the tin bath infront of the coal fire! My mum was posh like that .....
:lol::lol::lol: Love itThose were good days.......if you ask the OP nicely....he may fit a immersion heater in your tin bath for you.....and bond it...!!!
Joking aside....the current sensing relay would work....and a lot safer than trying to stuff 2 x 6mm into a fused spur.
the live off the shower mcb passes through the relay, and when current flows (ie shower turned on) the relay will be energised, switching on the fan. Basically works like a clamp meter.........Maybe not the best idea, but think the safest....well best i can think of....lol
Those were good days.......if you ask the OP nicely....he may fit a immersion heater in your tin bath for you.....and bond it...!!!
.... I said it before and I'll say it again this thread is a joke!
:mad2: So you think cutting into a 6mm2 cable which is controlling a shower and adding a Joint then teeing off it for a fan is pretty cool? I would avoid at all costs interference with a conductor feeding a shower, I expect others who were trained properly like myself over a period of years under a professional mentor would think so to. As your other question regarding the relay, IMO you are totally over complecating a very very easy job, why go to all the bother of this, were talking about a fan in a Domestic bathroom not a door entry system which is fed via relays on a fire alarm system. Tell you customer to have a plain simple PIR controlled fan fed from the lighting circuit, you could have it on a pull cord or on a timer, but fed from the lighting circuit and not the Flucking Shower feed, comprende.
Reply to Connecting a fan to shower power in the UK Electrical Forum area at ElectriciansForums.net
We get it, advertisements are annoying!
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.