How much insulation is needed leaving back box?

[twist]

Hi, I'm replacing a damaged cable to my shower and can't make a good job of getting both 10mm^2 cables in the old DP switch box without stripping the external PVC way back to promote flexibility.

The thing is these are massive cables and the one at the bottom comes from the top and vice versa, the opening at the back barely permits the two entry without needing to cross over.

Should I replace the switch or let cable leave without full outer insulation?

 

[GLENNSPARK]

its about time these brain dead tw&ts left us alone in here....
stop askin bloody questions on how to do stuff...
go get an electrician in....

 

[Silly Sausage]

its about time these brain dead tw&ts left us alone in here....
stop askin bloody questions on how to do stuff...
go get an electrician in....

Oh how I love Glenn's replies!!!

 

[micknew]

Too many members want to show how much they know to DIYers.

 

[guest119]

Yea well, what happens when the 5wws start helping out the diyers?

 

[GLENNSPARK]

Yea well, what happens when the 5wws start helping out the diyers?

wrong....
when the DIYers start helping out the Electrical Trainee....

 

[Engineer54]

Ok, was going to do that.

I DIY I die, so no, but I repair and replace.

Seems most wall mounted DP switches are for cookers, anyone know if they will give the requisite 3mm contact separation and which standard I need to look for to ensure this? Or just buy Crabtree and trust in quality?

Hmmmm, ....so what sort of contact gap would you expect from a DP 45A cooker switch then??

 

[Geordie Spark]

its about time these brain dead tw&ts left us alone in here....
stop askin bloody questions on how to do stuff...
go get an electrician in....

Don't you hold back there Glenn ............. just tell it like it is ... :wink_smile:

 

[GLENNSPARK]

Don't you hold back there Glenn ............. just tell it like it is ... :wink_smile:

i`m just tired of it all the time..
like bloody stupid questions...

 

[Geordie Spark]

i`m just tired of it all the time..
like bloody stupid questions...

Keep calm and carry on.

 

[Octopus]

Its about time Dan created a new catagory for some members - DIY Bodger??

 

[twist]

Hmmmm, ....so what sort of contact gap would you expect from a DP 45A cooker switch then??

I don't know, I'm replacing my shower.

Its about time Dan created a new catagory for some members - DIY Bodger??

I have a 45A switch and discover I cannot use 10mm^2 cable in it. It seems like the regs re CSA vs Imax are bodged.

 

[telectrix]

you've had your answer. use a double 47mm back box and an appropriate switch.

 

[kingeri]

................

 

[Engineer54]

you've had your answer. use a double 47mm back box and an appropriate switch.

Originally Posted by twist

Originally Posted by Engineer54
Hmmmm, ....so what sort of contact gap would you expect from a DP 45A cooker switch then??

I don't know, I'm replacing my shower.

Yep, that looks decidedly like a cooker/heater switch, without the engraving of ''COOKER'' or HEATER'' on the faceplate!! Jesus, some mothers do ave em alright!!

 

[telectrix]

well, if that was outside my bathroom, i'd not immediately think it was for the cooker.