Flex used in walls?

justintime2 · 24 Jan 2015

Thanks for everyone's input, I shall have to digest what this means for us tomorrow when we consider our options.

Kind regards
Justin

sparkwright · 24 Jan 2015

justintime2 said:
deadshort said:

My concern would be the cable size, if its 2.5mm flex i would not be too bothered, but if its 1.5mm i would want to replace it. Check the wiring to the boiler supply it may be linked there ?

Regards,

DS

Click to expand...

Would a photo of it be enough for you to be able to tell if it is 2.5mm? Each core measures about 3mm in diameter including its jacket.

Kind regards
Justin

Probably.

We can tell a lot from photos.

ban-all-sheds · 25 Jan 2015

justintime2 said:

That doesn't make any sense at all.

deadshort · 25 Jan 2015

Bas, the OP is aware that the load and supply are marked wrongly on his diagram

DS

333rocky333 · 25 Jan 2015

deadshort said:
Bas, the OP is aware that the load and supply are marked wrongly on his diagram

DS

I think he confirmed the diagram IS correct
The FCU is connected wrong

justintime2 said:
The Live from Flex #2 connects to the Supply of the FCU and the Neutral from Flex #2 connects to the Load of the FCU.

The Live from Flex #3 connects to Load of the FCU and Neutral from Flex #3 connects to Supply of the FCU.

winston1 · 25 Jan 2015

Apart from anything else you don't feed a single socket with a FCU. The tumble dryer plug has a fuse and having two 13A fuses in line means both will blow if there is a fault. The FCU should be replaced with a suitable switch if you require local isolation.

sparkwright · 25 Jan 2015

winston1 said:
Apart from anything else you don't feed a single socket with a FCU. The tumble dryer plug has a fuse and having two 13A fuses in line means both will blow if there is a fault. The FCU should be replaced with a suitable switch if you require local isolation.

I wouldn't be the slightest bit worried about this.

JohnW2 · 25 Jan 2015

winston1 said:
Apart from anything else you don't feed a single socket with a FCU. The tumble dryer plug has a fuse and having two 13A fuses in line means both will blow if there is a fault. The FCU should be replaced with a suitable switch if you require local isolation.

Maybe true - but, at worst, that would represent a once-in-a-blue-moon minor inconvenience - how often do you expect any fuse in the feed to a tumble dyer to blow? Furthermore, it's surprising how often only one of two 13A fuses in series blows, so it might not even happen on that 'once-in-a-blue-moon' occasion!

Kind Regards, John

deadshort · 25 Jan 2015

JohnW2 said:
winston1 said:

Apart from anything else you don't feed a single socket with a FCU. The tumble dryer plug has a fuse and having two 13A fuses in line means both will blow if there is a fault. The FCU should be replaced with a suitable switch if you require local isolation.

Click to expand...

Maybe true - but, at worst, that would represent a once-in-a-blue-moon minor inconvenience - how often do you expect any fuse in the feed to a tumble dyer to blow? Furthermore, it's surprising how often only one of two 13A fuses in series blows, so it might not even happen on that 'once-in-a-blue-moon' occasion!

Kind Regards, John

Yes, and one would have to remove the appliance to undertake the repair and replace the plug fuse if required

Regards,

DS

JohnW2 · 25 Jan 2015

deadshort said:
Yes, and one would have to remove the appliance to undertake the repair and replace the plug fuse if required

Quite so - and, in any event, I don't really understand all the excitement about 13A fuses blowing. Over the years/decades, I've had many domestic appliance die (and hence need repairing or replacing) but, off the top of my head, I can't actually recall any occasion on which a 13A fuse (in plug or elsewhere) blew as a result of the appliance's problem. I'm sure it occasionally happens, but seemingly not very often!

Kind Regards, John

333rocky333 · 25 Jan 2015

winston1 said:
The FCU should be replaced with a suitable switch if you require local isolation.

What suitable switch would that be, if the FCU turns out to be part of the Ring circuit

deadshort · 25 Jan 2015

Hi, 32a DP fairly common practice in the 90's kitchen

Infact my mums kitchen was fitted with 20a!

Regards,

DS

333rocky333 · 25 Jan 2015

I dont do domestic work but I thought it wss debatable about connecting them to a ring circuit

JohnW2 · 25 Jan 2015

333rocky333 said:
I dont do domestic work but I thought it wss debatable about connecting them to a ring circuit

I think it is (debatable) but I'm sure that it is an extremely common practice.

Kind Regards, John

JohnW2 · 25 Jan 2015

333rocky333 said:
What suitable switch would that be, if the FCU turns out to be part of the Ring circuit

deadshort said:
Hi, 32a DP fairly common practice in the 90's kitchen ... Infact my mums kitchen was fitted with 20a!

Quibblers aside, if the only thing on the load side of the switch is one single socket (hence a 13A max fuse), then I think one would struggle to produce a sensible electrical argument against inserting a 20A switch into a 32A ring or radial (and people do it all the time with those collections of 'kitchen grid switches'!). ... and, in case someone is thinking of that one, I do not personally believe that the regs are saying that only "accessories to BS1363" may be inserted in a ring final.

Kind Regards, John

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Flex used in walls?

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