Shower cable

[wingnot71]

Hi all, replacing an old shower and I need to extend the cable slightly. The cable(10mm) runs through the loft void and down a stud wall to the isolaing switch. Can I add a junction box in the loft and run the new length down from there or do I have to run it back to the isolating switch as to do this the cost of cable would double. If I can use a junction box would a 30amp box be ok, The new shower is 9.5kw.
Many thanks...

 

[Lagentium]

I've seen some decent joint boxes for doing the job you're after, the lad at CEF called it a 'coffin' due to its weird shape!

 

[jjjinx]

Yeah that's the one I'm talking about

 

[GMES]

Don't like to brag but ive scotch casted a few 185mm 4 core swa cables if that helps

 

[Lagentium]

Bootlaces them!!

 

[GMES]

Bootlaces them!!

Diddn't feel like it when i was waist deep in cold mud in a quarry slipping and bloody sliding .

 

[Lagentium]

Point taken GMES!

 

[southsea1201]

TLC's 60 amp JB is ideal with plenty of room to do a good job, and is priced very competitively.