Electrics RCD Question

[JohnD]

About 6 weeks ago my cooker tripped the RCD. When the electrician came, the plug socket was partially melted,

What sort of cooker is this, that has a 13Amp plug and socket?

 

[JohnD]

The OP's RCD is rated at 80A, it is significantly lower than the max of the MCBs (114A).

It doesn't work like that.

It is highly unlikely, and in an ordinary domestic house pretty well impossible, that all the circuits would be carrying their maximum rated load at the same time.

An electric shower, and an immersion heater, may run at nearly their rated circuit load. Pretty well nothing else comes close.

 

[SinsSinatti]

What sort of cooker is this, that has a 13Amp plug and socket?

Sorry I meant the switch rather than plug.

 

[Ragnar_AT]

So basically two accessories (cooker switch and dryer socket) melted within a fairly short period of time?

That seems to suggest poor connections (that lead to overheating) or poor quality accessories. Get an EICR done and specifically ask the electrician to look for loose connections.

 

[opps]

It doesn't work like that.

It is highly unlikely, and in an ordinary domestic house pretty well impossible, that all the circuits would be carrying their maximum rated load at the same time.

An electric shower, and an immersion heater, may run at nearly their rated circuit load. Pretty well nothing else comes close.

I appreciate that (tnx), and yeah, I am also familiar with the concept of diversity.

I did however think it odd that the lower rated RCD has a higher (relative potential) load than the higher rated one. In no way am I maligning the electrician that fitted the CU. I was asking because I was uncertain.