extending immersion heater circuit

[bootsnbraces123]

Hi all,

Im an electronics engineer by trade but i need some electrical advise regarding regulations ( you boys like complicating things dont you )

I have a balcony with a large plant propogator on it. Ideally i need to get power to the propogator (100w max). The only power source reasonably close is the immersion heaters radial circuit! can i use an fcu (original circuit is already rcd protected) to extend the radial circuit out to the balcony with suitable cable?

We never use the immersion heater and even if we did the 100w at 240v is only 410ma so it hardly likely to be any sort of an overload issue even if both were on at once.
Were do i stand with part p? am i ok to do it as its extending an existing circuit or am i not allowed to as its outside?

Lots of thanks in advance
Harry

 

[PrenticeBoyofDerry]

General rule is water heater, storing excess of 15L, should be on there own circuit.

 

[phatboy]

General rule is water heater, storing excess of 15L, should be on there own circuit.

But he said he never used the immersion?

That being the case, yes you could extend the circuit via the safe zones or surface trunking to the outside. This would be a pretty good solution, as if there was a water related fault the single circuit cold be easily isolated without effecting the rest of the property

 

[EFLImpudence]

General rule is water heater, storing excess of 15L, should be on there own circuit.

Not exactly.

It says it should be on a dedicated circuit - meaning as opposed to being on a Ring Final Circuit.

A dedicated circuit could be one which supplies an immersion heater and a propagator.
Obviously the circuit must comply with all the relevant regulations.

 

[Spark123]

Outdoor power installations are classed as "special installations" and are notifiable under part p, but give it a few months as this may change.

 

[ban-all-sheds]

Were do i stand with part p?

I don't know - you tell us. This is Part P:



Can you comply with it?

am i ok to do it as its extending an existing circuit or am i not allowed to as its outside?

It's irrelevant where it is - being allowed to do it depends on whether you can do it competently, not on where it is.

Outdoor power installations are notifiable.

 

[ban-all-sheds]

Outdoor power installations are classed as "special installations" and are notifiable under part p

No - Part P has nothing to do with notification.

 

[Spark123]

OK, outdoor power installations do not fall under the exceptions given in schedule 4 of Statutory Instrument 2214 (2010) hence require notification to your LABC.