Oven tripping the electrics

danrv

Catbenetar said:

The cable in at the moment is a 6mm and it needs to be a 10mm is what we're being told.

My new Beko EDC634W 10kw double oven is on 6mm cable.  The specs state H05VV-FG 3x4mm2 cable or equivalent so this is fine.

Doonhamer

Doesn't really explain it tripping the RCD though. Just having a 6mm cable rather than a 10mm won't trip anything.

danrv

Catbenetar said:

or have a new cable run from the oven to the fuse box. 

A 10kw oven should be on a dedicated circuit so yes, good idea.
Definitely worth checking the oven isolating switch and the cable from that to the oven as suggested. It doesn't sound like the oven's at fault.

Catbenetar

Doonhamer said:

Doesn't really explain it tripping the RCD though. Just having a 6mm cable rather than a 10mm won't trip anything.

This contradicts what the electrician had told us. The oven has 45 ampage which requires a 10mm cable. A 32 would require a 6mm. 

Apologies if I’m not explaining as well as I could be. Im utterly exhausted by the whole saga. 

Catbenetar

danrv said:

Catbenetar said:

or have a new cable run from the oven to the fuse box. 

A 10kw oven should be on a dedicated circuit so yes, good idea.
Definitely worth checking the oven isolating switch and the cable from that to the oven as suggested. It doesn't sound like the oven's at fault.

It is definitely the cable. The cooker has 45 amps trying to run through a 6mm cable. Been advised it should be 10mm which Google has also confirmed. The installer should have spotted this though so I’m gonna get onto curry’s and see if we can switch for a different model. 

danrv

Catbenetar said:

danrv said:

Catbenetar said:

or have a new cable run from the oven to the fuse box. 

A 10kw oven should be on a dedicated circuit so yes, good idea.
Definitely worth checking the oven isolating switch and the cable from that to the oven as suggested. It doesn't sound like the oven's at fault.

It is definitely the cable. The cooker has 45 amps trying to run through a 6mm cable. 

Does depend on how the cable's installed. It can handle up to 53 amps.

Catbenetar

danrv said:

Catbenetar said:

danrv said:

Catbenetar said:

or have a new cable run from the oven to the fuse box. 

A 10kw oven should be on a dedicated circuit so yes, good idea.
Definitely worth checking the oven isolating switch and the cable from that to the oven as suggested. It doesn't sound like the oven's at fault.

It is definitely the cable. The cooker has 45 amps trying to run through a 6mm cable. 

Does depend on how the cable's installed. It can handle up to 53 amps.

Please can I ask under what circumstance it can handle 53 amps? 

vacheron

There are two factors that are important, voltage drop and the temperature rise of the cable. If the cable run is short, voltage drop is not that significant,

The heat rise of the cable depends on where it is run, what it is run with, if it is buried in a wall, in conduit or clipped to a surface, how the cable is constructed, and what the cable and insulation is made of.

Electricians have all the equations to work this out and apply the correct factors. 

danrv

Catbenetar said:

danrv said:

Catbenetar said:

danrv said:

Catbenetar said:

or have a new cable run from the oven to the fuse box. 

A 10kw oven should be on a dedicated circuit so yes, good idea.
Definitely worth checking the oven isolating switch and the cable from that to the oven as suggested. It doesn't sound like the oven's at fault.

It is definitely the cable. The cooker has 45 amps trying to run through a 6mm cable. 

Does depend on how the cable's installed. It can handle up to 53 amps.

Please can I ask under what circumstance it can handle 53 amps? 

If it was a run of 6mm SWA cable clipped direct.  

Bostonerimus1

danrv said:

Catbenetar said:

or have a new cable run from the oven to the fuse box. 

A 10kw oven should be on a dedicated circuit so yes, good idea.
Definitely worth checking the oven isolating switch and the cable from that to the oven as suggested. It doesn't sound like the oven's at fault.

Yes you need a dedicated circuit from the cooker back to the fuse box. The gauge of the wire must be right and you need an appropriately rated circuit breaker. If this oven is on say a 30A circuit, with a load of 13A fused items or lights, it's a fire hazard. If it's on it's own circuit it must be sized appropriately or maybe there's something tripping the RCD and taking out the oven and the other items. Get your landlord to get an electrician in to check it all, probably a simple fix once it's understood.