mcb tripped by cooker ring

[musicvan]

Hi, Some advice required on a mcb trip on the cooker ring, cooker was on Friday pm when the trip went on the cooker ring. With the cooker off and the cooker socket off it tripped again. Removed the cooker socket front to find a scorch mark at the back of the socket and the neutral wire insulation melted in a small area, the live into the socket connector was slightly melted and the socket connector plastic was slightly melted, looks like live and neutral shorted. Would a failed cooker element cause the wiring at the socket to melt or would it be a failed socket? Unable to get somebody out to investigate due to covid at the moment. Happy to replace the cooker element and socket but due to the melt on the neutral insulation was going to strip back but may not give enough wire to play to reconnect, is electrical insulation tape acceptable to mend insulation melt (couple mm) for a cooker circuit?

 

[chivers67]

Best buy some Heat Shrink, this may have been caused by loose connections, have you a Meter of any description that you could measure the Resistance of the element? When you say socket is it a Dual Cooker connection with a Socket or just Socket as such? I should think the circuit is a Radial rather than a Ring?

 

[JohnW2]

... Removed the cooker socket front to find a scorch mark at the back of the socket and the neutral wire insulation melted in a small area, the live into the socket connector was slightly melted and the socket connector plastic was slightly melted, looks like live and neutral shorted.

Sounds probably like a loose connection of the neutral in the socket. You'll certainly need a new socket, but there could be an issue in there being enough insulated and undamaged cable left to connect to it.

Kind Regards, John

 

[ericmark]

Doubt if it is a ring. Cooker circuits are normally radials.

I think people want to know how to cure an electrical problem, not how English is used to describe electrical items, yes we may call it a ring final, it is not a ring circuit that is some thing different, but in English there is very little difference between a circuit and a ring. OK we as electricians may have very different definition between a ring and a circuit, but people posting on the forum really don't know technical names.

So unless the wrong name can cause a major problem, as when talking about low voltage and extra low voltage, it really does not matter.

 

[SUNRAY]

To MusicVan: how much unburnt insulation is left?
Has the copper turned blue or black with the heat?
A photo would be very very useful for us to assess the damage.