16mm 2core and earth

[jmac80]

hi

im currently in the middle of a full bathroom renovation.
i want to run a new 16mm 2 core and earth cable from consumer unit to new shower position.
i`ll get a sparky to actually install the shower and cable into consumer unit/rcd etc...
but that wont be for a while and i need the cable to go in now before i put floor etc down..
question is, does anyone know where i can get about 12 metres of 16mm 2c+e (pay by the metre)?
i've had a search and can only find 50m or 100m rolls, bit of a waste as i only need 10-12 metres.

thanks all

 

[daytona]

most electrical wholesalers will sell you a cut length mate.it is pretty standard practice.

 

[jmac80]

yeah, thanks mate.
only problem is i live fairly rural (60 miles to nearest city/wholesale shops)

 

[Adam_151]

Are you sure you need 16mm² , might make termination difficult... it would be preferable if possible to re-consider the route and installation method and hopefully you'll be able to get the design down to 10mm²

 

[jmac80]

well i was planning on a 10.5kw shower,
the minimun lengh of cable i could get away with is say 4.5m to 5m to the isolating wall switch then another 1.5m to 2m to shower.
can that be done on 10mm. would it require a 45a or 50a rcd?

cable would not be covered in insulation.


the reason i wanted 16mm is basicly for future proof and the reason i wanted about 10-12m was to take it to the cieling for a 50a pull cord isolator.

 

[ColJack]

10mm² can take 64A clipped direct..

10.5KW is 43-46A ( depending on if it's rated at 230V or 240V.. )
10mm SHOULD be fine..

I say SHOULD because without being there to see the exact run, it's impossible to be certain..

 

[Lectrician]

12m, not covered with insulation (wall and ceiling) would be fine with 10mm.

You would require a 50amp MCB, but should also RCD protect the circuit.

Use a 50amp pull cord - The Crabtree ones are best (also rebadged as Marbo).

 

[jmac80]

12m, not covered with insulation (wall and ceiling) would be fine with 10mm.

You would require a 50amp MCB, but should also RCD protect the circuit.

Use a 50amp pull cord - The Crabtree ones are best (also rebadged as Marbo).

yeah i had my eye on a nice chrome crabtree one

 

[crystal ball]

yeah, thanks mate.
only problem is i live fairly rural (60 miles to nearest city/wholesale shops)

Try ringing a couple and see if they take phone/visa orders, if they are delivering in your area most will be happy to drop off, i live in a ruralish area and they have runs to different areas on different days.

I find Edmundsons most obliging but will vary branch to branch

 

[Taylortwocities]

TLC-Direct sell 16mm T&E by the metre and they'll deliver.

http://www.tlc-direct.co.uk/Products/CA16Gslash50.html

Again, you'll have fun terminating it in a pullswitch. Make sure the one you buy will accomodate 16mm.

 

[jmac80]

TLC-Direct sell 16mm T&E by the metre and they'll deliver.

http://www.tlc-direct.co.uk/Products/CA16Gslash50.html

Again, you'll have fun terminating it in a pullswitch. Make sure the one you buy will accomodate 16mm.

thanks mate

yeah i was thinking 16mm maybe a squeeze...
was looking at this pull cord.. http://www.screwfix.com/prods/86784...e-Low-Profile/Crabtree-Pull-Switch-Chrome-50A
doesnt say what cable it accepts upto.
this other crabtree one only accept up to 10mm http://www.screwfix.com/prods/90597.../Crabtree-Range/Crabtree-50A-Pullcord-Sw-Neon

EDIT: just checked crabtree brochure.. it will only accept 10mm, so it say s
anyone know of an alternative?
what isolators do people use with 16mm cable or do they just squeeze it in somehow?

 

[jmac80]

by the way this was the shower i was looking to get
http://www.creda-showers.com/product/creda550c105

i cheked the install manual but theres not even a mention of a 10.5kw shower,, just the lower 9.5kw model, which says use 10mm cable

 

[Steve]

If the OP wants a belt and braces install, I dont see the harm in using 16mm² cable, and terminating it locally (say, in the loft) into a metal box or a mini CU, and then carrying on in 10mm² to the pullswitch.

 

[ban-all-sheds]

what isolators do people use with 16mm cable?

 

[Spark123]

MK 50A pullcord part no 3164 WHI from the technical specs says it accepts 16mm. I think they are available from TLC direct.