Three core cable becomes four core in Spain.

Griff99

Griff99

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I've had to buy a new under worktop cooker and hob for my apartment in Spain. The oven door failed and I had to buy a new hob as well as an oven as the controls for the hob were on the oven facia.
The hob had a wiring loom that plugged into the oven and the oven then had a wire that plugged into a special three pin socket on the wall behind the oven. It is not your usual socket but a heavy duty one wired up to a the consumer unit marked oven and hob or "Cocino Horno" in Spanish.
The new Electrolux hob and oven have their own separate cables and visiting the local electrical store the staff advised me to do away with the socket and connect the two appliances by using a large block of terminal strip.
My problem is that my hob has not just the usual three core wire, brown, blue and yellow and green but a fourth wire coloured black. What should I do with this one? (polite answers only please).
PS The previous installers of the oven and hob were the delivery drivers who obviously were not health and safety minded as the didn't bother putting the back on the special plug that is designed for the cooker connection as it took up too much space being the cooker for it to fit properly into the cavity. If the firm hadn't gone bust in the 2006 crash I would have been in to complain......



Read more: https://www.diynot.com/diy/threads/three-core-cable-now-becomes-four-core.540205/#ixzz6Fbm0ytFQ
 
Thanks for that Bernard, you've confirmed my thoughts that it is an additional live cable, bearing in mind that I am connecting up the two units to a large block of terminal strip and putting the two brown live cables into one hole, are you recommending that I put the black cable into the same hole or should I head back to the electricians store to buy another piece of kit.
 
Provided that you do have a single phase supply then yes connect the two Browns and the Black together.

Griff99 said:
a special three pin socket on the wall
Click to expand...

As long as one of the pins is Earth then it is a single phase supply. There was once ( and may still be ) a type of three pin socket that had Neutral and two Phases on the pins with the Earth as a contact on the side of the plug.
 
If this equipment is "new", do you not have a circuit diagram for this equipment?
If you have the Model Number, it should be possible to locate the diagram on the WWW.
 
Bernard’s solution has proved correct. Given that it is a live wire it is the only place that logically it can go. Thanks again Bernard.
 
I know on main land Europe some homes have a split phase supply, and some supplies have limits as to what you can draw on each phase, with a lot lower fuses than used in UK, and some smart meters as set to raise the charges if you exceed the limits. Many cookers are designed for split phase supply, but beyond that can't really help, as where I worked we had our own generators.
 
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