Shower electrics confirmation...

[Dstudio]

Hi there,

Am new to the forum (hello all) and am after some clarification on a new shower install if possible.

The guidance that I was given was to run 10mm cable from new shower (10.kw) to isolator switch outside shower room. This to be mounted on wall. Then to run 10 mm cable from isolator switch to new fuse within the existing fuse box.

Would it be possible for someone to confirm this? Have I missed anything?

With it being a shower I don't want to take any risks. I'm at the point of connecting to fuse box but would like a second opinion before I connect up.

Any advise would be greatly appreciated.

Thanks in advance.

 

[Aragorn84]

What are you connecting it to in the "fusebox"?

Is there an RCD?

 

[Taylortwocities]

With it being a shower I don't want to take any risks. I'm at the point of connecting to fuse box but would like a second opinion before I connect up.
.

Please be aware that any electrical work in a bathroom and the creation of a new circuit are both notifiable to your local authority.
This will cost you money. The other option would be to use a registered electrician to complete the installation and to carry out the (legal requirement) paperwork.
That way you won't take any risks with you or yours.

Read more here before you do any more. http://www.diynot.com/wiki/Electrics:part_p:DIY-Electrical-Work-and-the-Law

 

[Dstudio]

The cable was going to go into a new MCB 32 that will be in the fuse box.

http://www.diynot.com/network/Dstudio/albums/19766/73800

 

[PrenticeBoyofDerry]

With it being a shower I don't want to take any risks.

Therefore you should make yourself aware of the requirements to designing the circuit correctly and the prescribed safe zones for cable routing, also the requirement for 30mA RCD protection and the application for notifiable work prior to starting the work. Which will also then require you to prove what you have done is safe, this would require you to document that you have complied to BS7671 and detailed this in the form of a electrical installation certificate, where inspection and testing would be required!
PS. there will be a fee to notify the work!
Your best bet is to employ a competent electrician.

I'm at the point of connecting to fuse box but would like a second opinion before I connect up.

Don't unless you have done as instructed above

Any advise would be greatly appreciated.

Not just any advice my friend, the best advice when it comes to safety against the effects of a dodgy installations.

 

[Dstudio]

Thanks guys, you're right. Will call my sparks and get him out.

 

[PrenticeBoyofDerry]

Thanks guys, you're right. Will call my sparks and get him out.

Wise move! The sparks needs to be able sign the work off

 

[AndyPRK]

Untitled

• Dstudio
• 25 Feb 2014
• 1

There is no rcd in that cu.

It looks a lash up using different Mcbs than the design intended.

 

[Taylortwocities]

Just a quick look at your picture. Two immediate areas

1. you have no RCD and you must have one on the shower circuit, either as a part of the consumer unit (ie an RCBO, or external and serving just the shower circuit.,

2. a 10KW shower requires 43.5 amp at 230volts. What do you think will happen if you were to connect this shower to the 32amp MCB ?

You proposal to

call my sparks and get him out

would be only safe option…

EDIT: you say you'll have a new MCB for this shower. Would this shower be in addition to the one that is on the MCB next to the main switch? Your suipply may not be big enough for two instant heat showers.

 

[PrenticeBoyofDerry]

I would also check the Wylex NSB as they had a product recall on these breakers (april 2009- feb 2010).
One positive the NHXBs should fit! Thus an RCBO purchase for shower should be no problem.

 

[AndyPRK]

The recall effected batches of the the 6,10,16A MCB's.

I don't think the NHXB RCBO's do line up correctly with the bus bar !

 

[PrenticeBoyofDerry]

I am sure the wylex NH1104 does!

 

[ebee]

"The guidance that I was given "
Who gave you this guidance?
Was it your Electrician?

 

[ekmdgrf]

2. a 10KW shower requires 43.5 amp at 230volts. What do you think will happen if you were to connect this shower to the 32amp MCB ?

It would only get 32A and give you only a lukewarm shower?

 

[DetlefSchmitz]

This is probably not a good place to be making jokes.