Jump to content

DONT STAY LURKING AS A GUEST,

JOIN TEF AND BENEFIT FROM MEMBERSHIP:

CLICK HERE TO JOIN.
  • 0
CSW

Incorrectly wired RCD

Question

CSW

Hoping someone can help without a picture this may take some explaining!

 

I've got a new shower being fitted and decided to take a quick look at the consumer unit powering it. I've noticed that the VB50 B50 next to the RCD which I was expecting the shower to be using isn't wired up and the shower is wired straight into the RCD. I could do with a pointer on where the wires are meant to go.

 

Thanks in advance!

Share this post


Link to post
Share on other sites

Recommended Posts

  • 0
binky

is the rcd separate to the CU?

 

Share this post


Link to post
Share on other sites
  • 0
kerching

Well that reads as though there is NO overcurrent protection to your shower. So if the shower is ONLY connected to the RCD it is WRONG and whoever is connecting the new shower needs to get it sorted pronto

is it "being fitted" or has it 'been fitted'?

if already fitted what paperwork,and test results did you receive?

who is doing/has done this work?    Electrician?, plumber?

Share this post


Link to post
Share on other sites
  • 0
Tony S

Get whoever fitted or is fitting the shower back. As it is, it’s dangerous.

Share this post


Link to post
Share on other sites
  • 0
ProDave

This is a prime example of the forum restrictions preventing a new user posting a picture, result in a new user not being able to explain his issue properly and perhaps not getting the best answer?

 

Share this post


Link to post
Share on other sites
  • 0
Evans Electric

CSW   I believe you can use one of the photo shop  to post , or wait for a Mod to spot this thread .    

Your problem , as others have said , is potentially dangerous ,   without seeing a photo it does sound like your shower should be connected to the  B50  MCB   which probably  protects the B50   .  

Share this post


Link to post
Share on other sites
  • 0
Apache
1 hour ago, ProDave said:

This is a prime example of the forum restrictions preventing a new user posting a picture, result in a new user not being able to explain his issue properly and perhaps not getting the best answer?

 

I've upgraded his account so the OP can post pictures.

 

At one time we were getting multiple people registering and spamming the forum. It was becoming too much for the admins and the mods. Some of them not very suitable for all audiences etc. In the grand scheme of things I'd rather doctor a few accounts beloning to genuine members than be spammed multiples times per day?

Share this post


Link to post
Share on other sites
  • 0
CSW

@Apache thanks for that.

 

@Tony S I think the guy we bought the house off 2 years ago may have done it himself, otherwise I would have.

 

@kerching the shower is being fitted by plumber and he spotted the issue doing a survey.

 

Any help is really appreciated! Thanks for all the comments so far!

0_20190810_094815_HDR~3.jpg

Share this post


Link to post
Share on other sites
  • 0
Tony S

Seriously, get a real electrician in before you or one your of family get killed.

Share this post


Link to post
Share on other sites
  • 0
Evans Electric

Thanks  Apache , !

Right  its as we thought    , the RCD should be linked to the B50  and your shower connected to the B50  . 

I' ll post  a sketch  , you could probably do it yourself  ,   switch power off first .

Sketch coming up . 

 

Or as Tony says  , get a Sparky in 

Scan0003.jpg

Edited by Evans Electric

Share this post


Link to post
Share on other sites
  • 0
Jono Pashley

Get an electrician in. Dont attempt it yourself. If it's been budged that badly who knows what else could be wrong.

Share this post


Link to post
Share on other sites
  • 0
Tony S

It’s OK saying isolate first, where does a DIYer isolate safely? I know what I’d do but I’m not telling a DIYer due to the inherent dangers.

 

He needs a qualified electrician.

Share this post


Link to post
Share on other sites
  • 0
CSW

Thanks for the diagram @Evans Electric?

 

@Tony S thanks for the warnings, I'm currently Googling for electricians locally (any in Stonehouse, Gloucestershire on here for a quick job). I take your expert advice seriously! Thanks all!

Share this post


Link to post
Share on other sites
  • 0
Tony S

:Salute

Share this post


Link to post
Share on other sites
  • 0
ProDave

I would want to know where that mini CU is fed from and how as well.

Share this post


Link to post
Share on other sites
  • 0
CSW

@ProDave I will ask that when I can get an electrician sorted. Thanks!

Share this post


Link to post
Share on other sites
  • 0
scott@cei-ltd.co.uk
31 minutes ago, CSW said:

Thanks for the diagram @Evans Electric?

 

@Tony S thanks for the warnings, I'm currently Googling for electricians locally (any in Stonehouse, Gloucestershire on here for a quick job). I take your expert advice seriously! Thanks all!

 

Share this post


Link to post
Share on other sites
  • 0
kerching

We'll, hard to tell from pic but, if that cable is the one going OUT to the shower it doesn't look large enough to be on a B50 MCB. I assume it's a 10kW shower?

Share this post


Link to post
Share on other sites
  • 0
ProDave
12 minutes ago, kerching said:

We'll, hard to tell from pic but, if that cable is the one going OUT to the shower it doesn't look large enough to be on a B50 MCB. I assume it's a 10kW shower?

And by the same token, if it's the feed it is not big enough either.

 

@CSW can you confirm there are in fact cables connected into both the top and the bottom terminals of that RCD?

 

It worries me I can only see one wire into one terminal of the earth bar. And nothing in the neutral bar.

 

And as the person connecting it clearly did not know what he was doing, I would worry he has the input into the wrong end, some makes of RCD get upset and let their smoke out if you do that.

Share this post


Link to post
Share on other sites
  • 0
Telectrix

pete10001 is gloucester way. might get him out of retirement for this.

Share this post


Link to post
Share on other sites
  • 0
Chewbacca

is it me or is that a 6mm cable on a 50A MCB? 

Share this post


Link to post
Share on other sites
  • 0
Tony S
Just now, Chewbacca said:

is it me or is that a 6mm cable on a 50A MCB? 

 

As it is I think the cable size is the least of the "OP's problems.

 

BTW, it's good to see you back 🤩

Share this post


Link to post
Share on other sites
  • 0
CSW
13 hours ago, ProDave said:

And by the same token, if it's the feed it is not big enough either.

 

@CSW can you confirm there are in fact cables connected into both the top and the bottom terminals of that RCD?

 

It worries me I can only see one wire into one terminal of the earth bar. And nothing in the neutral bar.

 

And as the person connecting it clearly did not know what he was doing, I would worry he has the input into the wrong end, some makes of RCD get upset and let their smoke out if you do that.

Yup black and red in the top and the bottom of the RCD and 2 ground wires to the ground bar

Share this post


Link to post
Share on other sites
  • 0
kerching
30 minutes ago, Tony S said:

 

As it is I think the cable size is the least of the "OP's problems.

 

BTW, it's good to see you back 🤩

Well I posted about the cable size prior to that BUT having looked at it again it may even be 4mm!!

Share this post


Link to post
Share on other sites
  • 0
CSW
14 hours ago, kerching said:

We'll, hard to tell from pic but, if that cable is the one going OUT to the shower it doesn't look large enough to be on a B50 MCB. I assume it's a 10kW shower?

9.8kW rated shower 

I'll check cable measurements and post those back in shortly. Thanks again, great community you guys have here! Never thought I'd get this level of support over a wiring issue.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×

Important Information

Terms of UseWe have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.