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Author Topic: Any Electricians on here??  (Read 1224 times)

Offline johnhol78

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Any Electricians on here??
« on: July 05, 2011, 09:28:01 am »
Having an Electric shower put in.

I've tiled my bathroom and have everything bought and ready to install.

Basically I have the plumbing covered and the running of the 10mm cable from the shower to DP Pull switch. 10mm cable from pull switch down to the Consumer unit.

The question i have is about the RCD etc.

I've bought a separate shower RCD unit and am planning on having this wired into my main consumer unit - this is based on a couple of neighbours setup. Do I need to buy a RCBO and have the shower RCD wired into this (almost bridged).

I realise this would mean having basically two RCDs for my shower. One neighbour has piggybacked the oven RCBO though worried that when the oven is on then the shower couldn't be on at the same time as it may overload the connection.
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Offline Janner_Sy

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Re: Any Electricians on here??
« Reply #1 on: July 05, 2011, 12:58:28 pm »
Wouldn't bother with a seperate RCD. Just pop ina 30mA RCBO into your consumer unit. That's all the protection you need.don't go bridging things though, and certainly don't piggyback it off the cooker circuit

How new is the board? Does it have rcd or split rd protection already or is it ancient
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Offline johnhol78

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Re: Any Electricians on here??
« Reply #2 on: July 05, 2011, 01:35:38 pm »
Quote from: Janner_Sy on July 05, 2011, 12:58:28 pm
Wouldn't bother with a seperate RCD. Just pop ina 30mA RCBO into your consumer unit. That's all the protection you need.don't go bridging things though, and certainly don't piggyback it off the cooker circuit

How new is the board? Does it have rcd or split rd protection already or is it ancient

No it's RCD protected already. Have an electrician coming round tonight to have a look (he's a neighbour).

Think your right about just using an RCBO.....seems a whole lot easier.
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Offline Nodz

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Re: Any Electricians on here??
« Reply #3 on: July 05, 2011, 02:21:21 pm »
Sameas what janner said... If your current ccu has a 30ma rcd with a spare way stick it on that side on an mcb... If no spare ways on rcd side or no rcd get a 30ma rcbo, alot easier and cheaper than sticking a separate ccu in
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Offline johnhol78

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Re: Any Electricians on here??
« Reply #4 on: July 05, 2011, 03:08:46 pm »
Quote from: Nodz on July 05, 2011, 02:21:21 pm
Sameas what janner said... If your current ccu has a 30ma rcd with a spare way stick it on that side on an mcb... If no spare ways on rcd side or no rcd get a 30ma rcbo, alot easier and cheaper than sticking a separate ccu in

Problwm is I've already bought and open the box for the new separate shower RCD so thinking about it, I might as well use it.

I assume this just needs a feed from the main unit into the new RCD and the off to the shower.
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Offline johnboy07

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Re: Any Electricians on here??
« Reply #5 on: July 05, 2011, 06:28:36 pm »
Im taking it the new box is a 2 or 4way small comsumer unit. Your still better off using spare ways if you have them with the rcbo or and mcb if its a split load or rcd protected across the board as you will need to install isco blocks to split the mains tails into the new unit too with another main switch to isolate that.  :happy2:
« Last Edit: July 05, 2011, 06:37:35 pm by johnboy07 »
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Offline johnhol78

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Re: Any Electricians on here??
« Reply #6 on: July 05, 2011, 09:06:03 pm »
Had someone round and they said 40a breaker in CU and then we can wire that to the separate shower RCD i've bought then up to the DP pull switch....

At least I know what's need doing now in laymens terms  :wink:

Just finished putting the shower up, wired it in and plumbed......now to plumb the actual water mains in.

Too knackered now so another job for tomorrow night.

 :happy2:
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