mav
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Registered: 19th Jun 01
Location: Scotland
User status: Offline
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Should a 9.5kw leccy shower always run it's own cable into a seperate fuse/trip switch in junction box ?
At moment
Electric shower (don't know KW), the wiring comes from the shower into a pull switch on roof and then down to leccy box...Now as far as I can see it is not controlled in the box by a seperate fuse / trip switch.
Bought a new shower (9.5kw) and on instructions says it should be on a seperate cable and into a seperate trip / fuse of it's own..Or the circuit could heat up.
So is this really neccesary when it goes through the switched pull cord in bathroom..
I am assuming the shower at moment just runs through the ring main of the house as there is no seperate trip / fuse for it...there is seperate fuses for all the heaters and the hot water etc..
So do i need an electrician out to fit a new wiring from shower down into box and seperate fuse / switch?
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smcGSI16V
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Registered: 26th May 03
Location: Farnborough Drives: Thurlby 888 CDTi No.98
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When ever we installshoers at work they are to their own mcb/fuse.
I would if I was you, better safe than sorry.
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Leighton
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Registered: 21st Feb 01
Location: Liverpool
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yep should be on its own fuse
normaly the same size as electric ovens, dont just use a normal 32 amp one
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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Id put it into your consumer unit on a seperate RCD, showers need to be 10mm cable to
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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10mm cble...
feckin expensive and a ball ache to work with 
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coupe_babe
Member
Registered: 27th Jun 07
User status: Offline
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10mm cable, MUST be on its own circuit, protected by an RCD or MCB at the very least.
The pull cord is just an isolator, you still need this aswell as the MCB/RCD as the pull cord doesnt offer short circuit/overload protection.
I would be very surprised if your current shower isnt on its own circuit.
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mattk
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Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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quote:
Originally posted by AK
feckin expensive and a ball ache to work with
sparks always say this to us too, try working with 28mm copper!
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GT4Brody
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Registered: 26th Sep 01
Location: south
User status: Offline
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10mm t and e rcd protected with 45amp double pole pull cord.
9.5kw draws a lot of current so correct size cable is very important.
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Tom J
Organiser: South Wales
Premium Member
Registered: 8th Sep 03
Location: Bridgend
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thought of changing it for a manual thermostatic shower?
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mav
Member
Registered: 19th Jun 01
Location: Scotland
User status: Offline
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Thanks for replies on this....The shower was run off a different trip and not in the ring main...Just the switch in the cupboard beside electrics but off to the side where i didn't see it...
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scottmmw
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Registered: 9th Aug 05
Location: Brotton, Cleveland
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quote:
Originally posted by GT4Brody
10mm t and e rcd protected with 45amp double pole pull cord.
9.5kw draws a lot of current so correct size cable is very important.
9500w Divide by 230v = 41.3 amps. just for anybody who might wanna work it out 
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GT4Brody
Member
Registered: 26th Sep 01
Location: south
User status: Offline
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quote:
Originally posted by scottmmw
quote:
Originally posted by GT4Brody
10mm t and e rcd protected with 45amp double pole pull cord.
9.5kw draws a lot of current so correct size cable is very important.
9500w Divide by 230v = 41.3 amps. just for anybody who might wanna work it out
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