9.5 kw shower on 6mm ?

[jonthesparks]

just been to a job , saw that the shower 9.5 kw is on 6mm t&e the cable goes in the wall and under floor boards ,No insulation, to the board (A cable run of no more than 10 m) . I said downgrade the shower to 8.5 max. Is it really necessary ? never quite sure , its borderline to me .

 

[Geordie Spark]

I think that we must recommend that all new circuits installed in lofts that have no loft insulation, should be installed, at least 300mm above the plasterboard, on the loft wall or along appropriate battens installed for the purpose.

This would circumvent the "monkeys".

The good folks of Hartlepool knew how to deal with monkeys.

 

[Dan]

I'm just bumping some threads in the Electrical Forum, don't mind me while I do this, you don't have to respond to them. Although if they are still current topics, and you do wish to reply, you're welcome to. Keep the thread on-topic and make sure you stick to the forum rules though.

 

[Gnasher]

Only one answer to this. Carry out the full design process to determine the answer.

Just remember.

9.5 KW = 41A so the protective device must be 45A or 50A depending on CU. take into account the following down rating factors for starters.
Grouping factors
Insulation
Installation method.

6mm has never been big enough for 9.5 KW so can not be classed as does not comply with current regulations.
If it trips regularly there is an issue that must be addressed. The fact that it is only used for a short time is not the correct approach.
This is a C2 fault potentially dangerous.

 

[Megavolt]

6mm on a 32a Mcb all day long

Tin hat on