Surface mounted cooker circuit

[Gringoking88]

Hi all,

I have been asked to install a new cooker circuit but the customer wants everything to be surface mounted to keep costs down. Do you know of any cooker connection units that are suitable for surface mounting e.g. have an appropriate back box? Cables will also be surface mounted using plastic conduit?

Many thanks,

M

 

[SparkyChick]

Most of them, so long as the back box is deep enough.

Edit:-

40mm minimum to give yourself some wiggle room with the conductors.

Not sure about conduit connections... if you're talking conduit you'll probably have to carefully cut holes in the patress box. If you're actually meaning trunking, then the entry points will be plenty big enough. Some boxes even include cable clamps.

To avoid breaking the plastic boxes, cut the entry points with a junior hacksaw first, then break them out and clean up the edges with a file to prevent damage to the cable.

Further edit:-

And as it's a new circuit, it goes without saying it will need properly testing, an EIC and a building control notification. Depending on the size of the load, you may also want to consider the loading etc. in the consumer unit.

 

[telectrix]

standard single or dual pattress depending on the switch.

 

[kenny7askew]

most wholesalers sell pvc boxes that have a pop out bit that takes a collar for the trunking so it fits nice and neat

 

[PEG]

Talking of cookers...Chinese is on the menu,again...

 

[Wilko]

Hi GK - you might like to get yourself updated to Trainee, which is you if I recall correctly

 

[Midwest]

most wholesalers sell pvc boxes that have a pop out bit that takes a collar for the trunking so it fits nice and neat

And pvc boxes for plastic conduit, but I've only ever seen 20mm, which dependant on the cabling might be of a tight squeeze.

 

[Midwest]

Talking of cookers...Chinese is on the menu,again...

Ours might be a replay of last nights beef stew, chillised

 

[kenny7askew]

And pvc boxes for plastic conduit, but I've only ever seen 20mm, which dependant on the cabling might be of a tight squeeze.

MK do 32mm

 

[Midwest]

MK do 32mm

Isn't that the depth of the box? Needed one the other day (25mm).

 

[kenny7askew]

S

Isn't that the depth of the box? Needed one the other day (25mm).

Sorry not really sure, i remember using deep ones before but I think someone else provided them for me

 

[Gavin John Hyde]

schneider do a nice 44mm deep surface box with 20mm conduit knockouts. Your local suppliers should have them available somewhere.
Schneider Mita KBU441W 1g 44mm Square Corner PVC 20mm Cond. Entry Box - Edwardes - https://www.edwardes.co.uk/en/products/schneider-mita-kbu441w-1g-44mm-square-corner-pvc-20mm-cond-entry-box

 

[Risteard]

Isn't that the depth of the box? Needed one the other day (25mm).

Holesaw?

 

[Midwest]

Holesaw?

I was being pedantic, there ain't any off the shelf pattress boxes, with anything other than 200mm knockouts, as far as I'm aware?

 

[westward10]

That is going to need big grommets.

 

[Dave OCD]

If going surface in a domestic kitchen I think trunking [25x16mm fine for 6mm cable] would look better than conduit, not that self adhesive tat though.

 

[Dave OCD]

I was being pedantic, there ain't any off the shelf pattress boxes, with anything other than 200mm knockouts, as far as I'm aware?

What size cable is he using ? Must be a big loading on this cooker !!

 

[Adam W]

Just to clarify, are we sure this is conduit, or is it mini trunking?

 

[westward10]

200mm conduit, apparently

 

[Adam W]

If going surface in a domestic kitchen I think trunking [25x16mm fine for 6mm cable] would look better than conduit, not that self adhesive tat though.

Sorry Dave I didn't refresh before I posted. I agree, but I'd use that self adhesive tat to hold it in place while I screw it in.