heaters

[Philip Thrower]

Go Wales Go. seriously, I have a separate ring main 2.5 cable on a 32 mcb. It has 7 1kw heaters connected. Does this sound okay. The electrician has signed it off ?

 

[AndyL]

Just take a step back from your blinkered approach to the regulations for a minute and try a bit of independent thinking. Yes you could argue all day long that it could be treated as if it was the standard circuit featured in the appendix. But it doesn't have to be an adaption of. A standard circuit, it is a circuit which has been designed for this specific installation. There is nothing to say that you may only use the standard circuit arrangements in 7671, they are just there for convenience in basic installations.
Anyone with some sense and a bit of knowledge can design perfectly compliant circuits without using the standard circuits.

It's no different to the infamous lollipop circuit,

Not being blinkered but giving my point of view which happens to agree with these particular regulations. The circuit may well of been designed for the heaters but he has ended up with a standard RFC which it is recommended not used in this method

 

[davesparks]

Not being blinkered but giving my point of view which happens to agree with these particular regulations. The circuit may well of been designed for the heaters but he has ended up with a standard RFC which it is recommended not used in this method

He has not ended up with a standard ring circuit, as a standard ring circuit feeds socket outlets. This is more akin to the appliance ring circuit which appears occasionally as a ring dedicated entirely to feeding kitchen appliances.

 

[AndyL]

He has not ended up with a standard ring circuit, as a standard ring circuit feeds socket outlets. This is more akin to the appliance ring circuit which appears occasionally as a ring dedicated entirely to feeding kitchen appliances.

Does it? Could it not also feed FCUs such as your above mention kitchen appliance ring? Surely this is also a standard ring circuit

 

[Adam W]

Go Wales Go. seriously, I have a separate ring main 2.5 cable on a 32 mcb. It has 7 1kw heaters connected. Does this sound okay. The electrician has signed it off ?

A dedicated space heating circuit with ample current for everything connected to it?
Sounds alright to me, although I haven't seen it.
Are you coming back to read this?

 

[HandySparks]

A couple of possible reasons against: Putting all the heating loads on one circuit, which will lead to the inconvenient loss of all heating in the event of a fault. Also possibly against the advice of the circuit breaker manufacturer in loading it to around 100% of rating for long periods of time.

 

[Pete999]

Fit non standard sockets, that will stop it being used as a standard RFC.