Wiring a bathroom fan with shower cable.

[flameport]

Remove existing shower isolator, replace with an RCD FCU, connect new bathroom lighting to that.
Optionally change MCB in the consumer unit to some lower value. The 45A shower should never have been fitted in that consumer unit, as it is a maximum of 30A per way.

 

[martii]

That sounds serious endecotp. Do you think it is safe to use the shower until resolved?
Unfortunately I no longer have contact details for the guy who installed shower in the first place.

 

[martii]

Thanks flameport. The same guy who did the shower put in an electric cooker with a 32a fuse in a spare "port" in the fuse box. Should that be ok or should I start getting quotes for replacing the whole box do you think?

 

[Iggifer]

I spy Pyro

 

[flameport]

Should that be ok or should I start getting quotes for replacing the whole box do you think?

There is nothing inherently wrong with that fusebox, it's still as safe as when installed.
However the problem is that the majority of new circuits, additions and alterations will require RCD protection, which cannot be added to that fusebox.
Therefore replacement is certainly something to consider.

 

[Echo the husky]

I spy Pyro

Sad isn't it, that was the first thing I noticed...

 

[Iggifer]

I spy Pyro

Sad isn't it, that was the first thing I noticed...

Yes and no. It is (was) red. I'm wondering what's wired in Pyro

Went into a wholesalers to get a red shroud for some FP. The guy on the counter had to describe it to his mate as 'one of those red carrot type things'. Neither of them knew what they were for until then

 

[Echo the husky]

Isn't it just standard Pyro orange?? Anyway we're getting sidetracked again...

 

[Iggifer]

Maybe. Damn iOS 9.3!

 

[ban-all-sheds]

The guy on the counter had to describe it to his mate as 'one of those red carrot type things'.

Could have been worse...

 

[333rocky333]

Should that be ok or should I start getting quotes for replacing the whole box do you think?

worth considering
You have a wylex box with some proteus (Another make) mcbs fitted
The Main switch is only rated at 60 amp max for the whole house though you proberly rarely if ever exceed that

 

[endecotp]

That sounds serious endecotp. Do you think it is safe to use the shower until resolved?.

It's as safe as millions of showers installed before RCDs became standard; yes you can continue to use it.

The issue is that new circuits have to comply with the current regulations, which require RCD protection in most cases and certainly for bathrooms. Replacing the CU will give you RCDs for everything, which is good going forward, but will cost in the short term.
The alternative is to find some way to add RCD only for the new circuit (as suggested above) which is probably cheaper but has no other advantages.

 

[martii]

Much relieved to hear current system is safe and thanks for the suggestions that would get the result at the least cost.

If I was to decide new CU would the link below be the way forward?

Are we talking hours or days for someone to swap CU.
Thanks again for all your input.

http://www.screwfix.com/p/mk-sentry-16-module-10-way-metal-split-load-consumer-unit/9648g

 

[Taylortwocities]

The way forward is to find a registered electrician (changing a CU is notifiable work).
He is the one who is best placed to supply the correct CU for your installation.
He/she will fully test your wiring first, and then make the change.
How long? It depends on lots of things. It's not like shopping a tyre on a car.

 

[martii]

TTC, so the electrician recommended by a friend might not be registered and therefore not qualified to swap CU?
I want it done safely above cheaply. Is there a fool proof way of checking someone is registered for this job?