Ask The Trades - SHOWER TRIPPING RCD

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Ask The Trades › DIY Forum › Electrical Questions › SHOWER TRIPPING RCD

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SHOWER TRIPPING RCD (Read 15563 times)

LSpark

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Re: SHOWER TRIPPING RCD
Reply #17 - Nov 17^th, 2004, 11:01pm

[quote author=Chaddy link=1100639906/15#15 date=1100727344]I thought it sounded like the switch, especially as it was fine until the switch was reconnected!!
Got a professional coming tomorrow to check it over. Don't want to take any more chances. Grin

[/quote]

Hey Chaddy

Yep get it checked out properly, as the other guys have already said it's most likely a cross connection.

Quote:

Can you give me any ideas how much i can expect to pay to have the installation checked out??
I know it's a difficult question to answer but a ball park figure would help to make sure i don't get ripped off.

�100 or less

Quote:

Is it possible to blow the RCD and is it repairable?

RCD's arent usualy damaged by this, however they wont reset instantly, with the shower properly disconnected the RCD should reset after turning on and off and waiting some time.

It is important the show is not used for the time being tho as I have concerns about your earthing being live and sparking, if the earthing is poor or mis-wired you may get shocks from exposed conductive parts e.g. metalic pipes etc

Hope you get it all sorted out, do keep us informed how it goes!

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The_Trician Trade Member Offline Posts: 7721 Total Thanks: 8 For This Post: 0 Gender: Trade: Electrician	Re: SHOWER TRIPPING RCD Reply #18 - Nov 18^th, 2004, 3:02am Whole installation? The whole house? A PIR will cost you around �150. Just to check the shower circuit? �30-50. TT
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ban-all-sheds GDPR opt-out Total Thanks: 8 For This Post: 0	Re: SHOWER TRIPPING RCD Reply #19 - Nov 18^th, 2004, 9:58am The shower is just the load - you can connect it either way round. You shouldn't, as it would mean you'd be switching the neutral inside the shower, but it can't cause problems like these...
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The_Trician Trade Member Offline Posts: 7721 Total Thanks: 8 For This Post: 0 Gender: Trade: Electrician	Re: SHOWER TRIPPING RCD Reply #20 - Nov 18^th, 2004, 10:36am I'm talking about L connected to N and N connected to L when the double pole shower pullswitch is in the ON position - BANG! TT
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Chaddy

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Re: SHOWER TRIPPING RCD
Reply #21 - Nov 18^th, 2004, 9:12pm

All sorted at last!! Grin

The problem was that my mate followed the instructions!!!

They said that a neutral link wire shoud be run from the RCD unit to the CU!!!

Guess what? Removed it and surprise surprise it works perfect!!!! Grin

Thanks to everybody for their thoughts and ideas. Very much appreciated.
This is an excellent forum with some really helpful people.

Cheers guys.

Chaddy

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sparkyjonny GDPR opt-out Total Thanks: 8 For This Post: 0	Re: SHOWER TRIPPING RCD Reply #22 - Nov 18^th, 2004, 9:19pm Yes, there should be a neutral link - from the CU to the supply side NOT LOAD SIDE of the RCD. I take it this is still in place - unless you've skipped past the RCD, the shower won't work without this!! The instructions probably put the emphasis on this neutral link for 3-phase 3-wire installaitons.
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Chaddy GDPR opt-out Total Thanks: 8 For This Post: 0	Re: SHOWER TRIPPING RCD Reply #23 - Nov 18^th, 2004, 9:28pm The instruction specifies a separate neutral from the neutral block in the CU to the RCD neutral block!! Already had the neutral fitted to the feed side of the RCD.
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sparkyjonny GDPR opt-out Total Thanks: 8 For This Post: 0	Re: SHOWER TRIPPING RCD Reply #24 - Nov 18^th, 2004, 9:40pm RCDs don't have a neutral block - there's an incoming live & neutral, and a load live & neutral, with the earths connected together. Maybe your enclosure is a small consumer unit which has a neutral bar fitted?
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LSpark Global Moderator Trade Member Author Offline Posts: 8069 Total Thanks: 3 For This Post: 0 London, UK United Kingdom Gender: Trade: Electrician	Re: SHOWER TRIPPING RCD Reply #25 - Nov 18^th, 2004, 9:52pm Well anyway who cares not it's sorted!! However Jonny is right in that there is no neutral back, what may of happened is he read the instructions and got it slightly confused, this often happens. Well done for getting it all sorted out
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The_Trician Trade Member Offline Posts: 7721 Total Thanks: 8 For This Post: 0 Gender: Trade: Electrician	Re: SHOWER TRIPPING RCD Reply #26 - Nov 18^th, 2004, 10:07pm The contentious 'block' is most likely the Earth terminal strip! TT
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ban-all-sheds

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Re: SHOWER TRIPPING RCD
Reply #27 - Nov 19^th, 2004, 12:32am

[quote author=The_Trician link=1100639906/15#20 date=1100774186]I'm talking about L connected to N and N connected to L when the double pole shower pullswitch is in the ON position - BANG!

TT [/quote]
Ah - I see what you mean now. You mean, in effect, the switch rotated through 90�. I read it as supply in OK, load with reversed polarity.

Sorry.

Must be late though - still can't work out what the instructions meant, and what Chaddy's mate did...

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The_Trician Trade Member Offline Posts: 7721 Total Thanks: 8 For This Post: 0 Gender: Trade: Electrician	Re: SHOWER TRIPPING RCD Reply #28 - Nov 19^th, 2004, 12:57am Nor me! The confused just got even more confusing! TT
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Chaddy GDPR opt-out Total Thanks: 8 For This Post: 0	Re: SHOWER TRIPPING RCD Reply #29 - Nov 19^th, 2004, 9:19am Sorry wasn't clear about the neutral in the RCD. I should have said it went to the neutral block in the enclosure!! It is a separate stand alone unit.
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