Is it me or are there no de-rating factors for flex, or have I gone blind...

Is the stuff not designed to be free in air and only have some minor weight bearing capability for supporting lamp holders etc...

Or am I talking complete bollox...
 
Is it me or are there no de-rating factors for flex, or have I gone blind...

Is the stuff not designed to be free in air and only have some minor weight bearing capability for supporting lamp holders etc...

Or am I talking complete bollox...

It's also useful for lashing stuff to the roof rack.
 
Is it me or are there no de-rating factors for flex, or have I gone blind...

Is the stuff not designed to be free in air and only have some minor weight bearing capability for supporting lamp holders etc...

Or am I talking complete bollox...
Would it not be prudent to apply some derating though? If something can carry 10 amps but is thenfor example, buried under a mountain of tickly wool it's going to have an effect on it
 
Would it not be prudent to apply some derating though? If something can carry 10 amps but is thenfor example, buried under a mountain of tickly wool it's going to have an effect on it
Very true, I would use the trusty 0.5 method just to be sure. But serious question, are there any installation methods/factors for flex?
 
There's nothing to say you can't hard wire in flex, there was a long thread about it a few months back and the general concensus was that it's acceptable. You just wouldn't though, would you?
 
There's nothing to say you can't hard wire in flex, there was a long thread about it a few months back and the general concensus was that it's acceptable. You just wouldn't though, would you?

especially if IT IS 1.0mm on a 32A breaker
 
especially if IT IS 1.0mm on a 32A breaker
Like Geordie said though, the tiles will be warm in winter when wiping over to keep them clean. Well it's only a few wires man, what can possibly go wrong?
Apart from a horrible, painful, fiery death.
:)
 
Flex has it's place, I'll leave it at that... :lol:

I would be pressuring the client to get the original installer back to rectify the sockets free of charge, why should the client pay for bad work?
 
they appear to be wired as a ring which i can connect into and i'm changing the CU so would i get away with a 20 A MCB?

How do you know they are wired as a ring, do the cables go back to the consumer unit on its own MCB?



I did a limited PIR before but didn't take every socket off the wall.Had no reason to suspect that it had been done in flex.I assume the homeowner either did it himself or a mate of the kitchen fitter did it. either way, it makes it difficult to remedy.
Did your limited PIR involve you looking inside the consumer unit?
If you answered yes to my first question above. You should have looked further into it and made the customer aware at the time, looks like you have shot yourself in the foot!


Down rate the circuit or you will have to remove the tiles, its an easy job to remove them with out breaking them.
 

How do you know they are wired as a ring, do the cables go back to the consumer unit on its own MCB?




Did your limited PIR involve you looking inside the consumer unit?
If you answered yes to my first question above. You should have looked further into it and made the customer aware at the time, looks like you have shot yourself in the foot!


Down rate the circuit or you will have to
remove the tiles, its an easy job to remove them with out breaking them.

Not when I clag them on it isn't !!! :winkiss:
 
The only thing i can think of is de-rating the breaker. would be wondering what the Zs is for the circuit as well. The main problem i suspect is going to be the potential for burning out the flex behind a socket and then losing the "ring" - then its just a matter of time.
Good news is that much of the equipment in a kitchen is high load short duration like kettles, microwave, toaster, but if there is a dishwasher in there or a washing machine and heaven for bid they use them at the same time, i just cannot see the circuit being fit for purpose.
I personally would look at the appliances in the kitchen and think would de-rating work, if not you gotta put in a thicker cable
 
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sockets wired in 1.0mm 3 core flex
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