Storage Heater MCB rating
- Thread starter bobknot
- Start date
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2.5 mm2 cable.
Would be inclined to fit 16 amp RCBOs, though a storage heater can't exactly be overloaded.
Would be inclined to fit 16 amp RCBOs, though a storage heater can't exactly be overloaded.
I honestly can't remember what paperwork we had from the electrician. As I said, we had trouble getting him here to finish the work, and it all got a bit messy. We also had builders in at the same time... wall insulation, plastering, roof repairs...
I'll get my other 'arf to see what she can find (that is her department after all!
)Thanks for that ...that's what I'll do then, but it's good to know I don't have to panic about it.
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What's in the other cu? 2 rcds or rcbos ?
It certainly looks as if it probably is (and that is obvioulsy what one would expect), but can you be certain from that pic? I know I've not got all that much experience, but I've been caught out before now with the difference between 2.5mm² and 4mm² conductors, particularly in photographs.
Kind Regards, John
I think I'll get hold of an odd scrap of 2.5mm from somewhere (trip to B&Q with some sidecutters maybe) and compare.
4mm² has stranded L & N, 2.5mm² has one solid core.
Well, just had the cover off again and it's definitely stranded... phew!
So we can sleep soundly without keeping one ear out for the smoke alarms then!
Good news that it is stranded.
Apologies for a hasty judgement.
Should we be concerned about the size of the flex between the double pole switch and the heater?
Apologies for a hasty judgement.
Should we be concerned about the size of the flex between the double pole switch and the heater?
No, as you said, the heater will not overload the cable.
And me ... although I'm a bit surprised.
Probably only if your middle name is Jobsworth!
In fact, even if your middle name were Jobsworth, as has been implied, if one is prepared to argue (I would think reasonably) that a storage heater "is not likely to result in an overload", there is not necessarily a requirement for overload protection of the (dedicated) circuit's fixed wiring, let alone the flex at the end.
Common sense time, I reckon.
Kind Regards, John
Just when we thought it was safe to go back in the water!
Ive no idea how to gauge the rating for flex. Anyhow, I've just put a vernier across it and it measures at a little over 8mm ...but I'm sure that's really pretty meaningless.
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