Consumer unit in attic

[hard-work]

What are the regs of having a CU in a boarded, well lit, warm, attic with a shoot down ladder? I can't see any problems myself.

thx

 

[Taylortwocities]

You cannot be serious. I can think of many problems:

The Consumer Unit must be accessible, and that isn't

Imagine:

• there is a fault on the immersion heater, it trips the RCD and there are no lights in the house. Its 11pm, its December and its pitch dark. How you going to reset the RCD?
• you have a chip fryer on the go in the kitchen, it catches fire and you need to disconnect the power to the fryer. The fire is so intense that you cannot get to the isolation switch/socket. Are you really going to leave the fire while you open the kitchen door, go upstairs, open the loft hatch, drop down the ladder, go up to the loft and turn off the power?

That's just a couple off the top of my head. There will be more coming along from others. Keep your head down, mate.

 

[hard-work]

My God! What if nuclear missile hits the house as well?
I do need more examples of calamity. An isolator to the CU in the living area can be fitted.

 

[ban-all-sheds]

I do need more examples of calamity.

Our resident doom-monger will no doubt oblige.

 

[bernardgreen]

well lit, warm, attic

How warm ?
( From a data sheet )
In order to protect a circuit optimally, additional considerations and constraints must be considered when selecting the miniature circuit-breakers.
Deviating ambient temperature
For installations of miniature circuit-breakers at other temperatures than the reference value, derating factors have to be considered. The rated value of the current of a miniature
circuit-breaker refers to a reference ambient temperature of 30 °C for miniature circuit-breakers with the characteristics B, C and D
If the ambient temperature is higher, the maximum operating currents are reduced by approx. 6 % per +10 °C temperature difference.

 

[hard-work]

How warm ?
( From a data sheet )
In order to protect a circuit optimally, additional considerations and constraints must be considered when selecting the miniature circuit-breakers.
Deviating ambient temperature
For installations of miniature circuit-breakers at other temperatures than the reference value, derating factors have to be considered. The rated value of the current of a miniature
circuit-breaker refers to a reference ambient temperature of 30 °C for miniature circuit-breakers with the characteristics B, C and D
If the ambient temperature is higher, the maximum operating currents are reduced by approx. 6 % per +10 °C temperature difference.

Bernard room temperature.

 

[bernardgreen]

Bernard room temperature.

Attics tend to get hotter than the average room

 

[JohnW2]

Bernard room temperature.

Always? The temperature in one of my roof spaces got to almost 50°C last week.

Kind Regards, John

 

[hard-work]

Room temperature.

 

[flameport]

What are the regs of having a CU in a boarded, well lit, warm, attic with a shoot down ladder?

Given your continual pointless trolling on the plumbing forum, any answer to this or any other of your enquiries would be entirely meaningless.

 

[hard-work]

So you do not know then. This one has too much time on his hands.

 

[jj4091]

Why would you want to do such a thing, even if it is a complete rewire you are going add a lot of expense.

 

[hard-work]

You are answering a question I never asked.

 

[ban-all-sheds]

No - he is asking a question.

 

[hard-work]

The first post matters. Temperatures of lofts, expense, etc, is outside the remit. It is not a normal loft as you think. If anyone cannot amswer the first question, it is not worth responding.