Correct way to joint 3 x 30 Amp cables, 30A JB not big enough

[loz2754]

Post in thread 'Joining existing cooker cable' Joining existing cooker cable - https://www.electriciansforums.net/threads/joining-existing-cooker-cable.171419/post-1501961

 

[timhoward]

I admit this is more complicated that I thought, and this has been a good wake up call!

Now the older cable has been pointed out I do think it might be better to rewire it, as suggested a long time ago.

It might also be possible to just crimp two of them, dispense with the 3rd, and run to a dual plate.

 

[westward10]

Post in thread 'Joining existing cooker cable' Joining existing cooker cable - https://www.electriciansforums.net/threads/joining-existing-cooker-cable.171419/post-1501961

One of those cables is likely to be larger than 6.0.

 

[pc1966]

A Knightsbridge 60amp junction boxes are much better than what you have but are not maintenance free/screwless terminals. I would use them in a loft when extending electric showers.

Yes, there are a few 60A rated boxes with cable clamps that should take those cables, but as you say they are not MF so would need to be kept in an accessible location.

 

[pc1966]

It might be better to look at extending the supply cable using the correct size crimps and heat-shrink, and then putting any junction in an accessible location, or better still having it join at points such as cooker switches, etc.

However that would need proper crimp tools, etc, so really you would be better to get a professional in to do it.

 

[fourtytwo]

Post in thread 'Joining existing cooker cable' Joining existing cooker cable - https://www.electriciansforums.net/threads/joining-existing-cooker-cable.171419/post-1501961

That's two cables, this is three.

 

[westward10]

So you are adding a third cable.

 

[fourtytwo]

It might be better to look at extending the supply cable using the correct size crimps and heat-shrink, and then putting any junction in an accessible location, or better still having it join at points such as cooker switches, etc.

However that would need proper crimp tools, etc, so really you would be better to get a professional in to do it.

Much as I agree with you I have just had a professional do a part P rewire and this is one of the issues I am left with.

 

[fourtytwo]

So you are adding a third cable.

No there are three cables already, I am not adding anything, just trying to improve an existing joint that I feel is inadequate.

 

[fourtytwo]

A Knightsbridge 60amp junction boxes are much better than what you have but are not maintenance free/screwless terminals. I would use them in a loft when extending electric showers.

It seems your answer wins Aaron as there are no MF products that fit this cable and will certainly be streets ahead of what's there at the moment, thankyou.