coocer, hob wiring

[nichos]

Hi,

I have a new oven & hob, both came with cables & 13A plugs.

Behind the kitchen cabinets there is a dedicated thick cable coming from a CB on the fuse box that powered the old cooker.

If I power a double socket with the above cable can I plug the two appliances on it?      ....thanx       .....nick

 

[Blue Duck]

Probably :C

Would be better hard wired though.

 

[nichos]

Do you mean hard wire individually the two 13A plugs coming out of each appliance?

If hard wire means dedicating a 32A C. Breaker in the fuse box, at the other end of the house, & bringing the cable to the kitchen, this will necessitating a lot of walls drilled & chase the cables in them.

Already the existing cable, buried in the walls, from the 30A C. Breaker in the fuse box ends up in a fused double pole Switch on the kitchen wall & a heavy cable going under the cabinets to the old Cooker. 

 

[ProDave]

A 13A plug limits you (obviously) to a total load of 13A or just a shade over 3KW. That's a pretty low power rating for a hob, less than 1KW per ring. the "trouble" with 13A plugs, is a lot of them get hot and bothered if you try and actually draw 13A from them for a prolonged perios of time.

I am guessing that it's an induction hob? a lot of these allow you to set the power rating and can be set very low but at the expense of performance.

A much better solution is a dual coker outlet plate so both the hob and the oven can be connected to the existing thick cable from the coker switch, and then you can run the hob at a higher power setting.

 

[nichos]

If these appliances come with a prewired 13A plug (integral with the cable) surely they must imply that you take it home plug it in the house common ring socket & start cooking !!.

Would this "...dual coker outlet plate...." have 3pin sockets for the appliance's 13A plugs to go into? or you cut the plug off the cables & connect the cables inside that plate?

 

[Andy™]

regulations do state in one of the annexes that fixed loads over 2kw should be hard wired

 

[Sidewinder]

Appendix 15 (informative) on ring circuits.

I quote:

"The load current in any part of the circuit should be unlikely to exceed for long periods the current-carrying capacity of the cable (Regulation 433.1.204 refers). This can generally be achieved by:

(i) locating socket-outlets to provide reasonable sharing of the load around the ring

(ii) not supplying immersion heaters, comprehensive electric space heating or loads of a similar profile from the ring circuit

(iii) connecting cookers, ovens and hobs with a rated power exceeding 2 kW on their own dedicated radial circuit

(iv) taking account of the total floor area being served. (Historically, a limit of 100 m2 has been adopted.)"

 

[Doc Hudson]

If these appliances come with a prewired 13A plug (integral with the cable) surely they must imply that you take it home plug it in the house common ring socket & start cooking !!.

Would this "...dual coker outlet plate...." have 3pin sockets for the appliance's 13A plugs to go into? or you cut the plug off the cables & connect the cables inside that plate?

Although a plug may be rated at 13A, you will probably find that most double sockets are not rated at 2x 13A, (typically more like 20A max continuous load) . To run two high power appliances from one double socket is not good design, especially if the two appliances are likely to be running simultaneously. Overheating of double sockets is often found in utility areas where a tumble drier and a washing machine share the same double outlet. I would prefer either hard wired or second best two single sockets.

Doc H.