Extending SWA garage cable

[Luka]

I have run 10mm2 3 core SWA to garage CU but miscalculated the length and no way Im going to reach the house CU. I need to extend the cable, is it acceptable to do it like on the picture?

 

[littlespark]

if it can be hidden, just use a torpedo joint designed for being buried, with the resin.
Extend with same SWA.

 

[Luka]

if it can be hidden, just use a torpedo joint designed for being buried, with the resin.
Extend with same SWA.

It needs to be extended only by about 30-40cm and junction box would be indoors about 30cm from the consumer unit in the house

 

[littlespark]

What about taking the SWA to its own little CU and split the incoming tails with Henley blocks?
House CU can be isolated without affecting garage

 

[mainline]

I have run 10mm2 3 core SWA to garage CU but miscalculated the length and no way Im going to reach the house CU. I need to extend the cable, is it acceptable to do it like on the picture

Yes that would be acceptable if single insulated cables are going to be exposed then put them in some containment.

A torpedo would probably be the easiest, even if you have to cut the feed cable back so that the join is in the best place.

It would also mean that the Swa can be glanded properly into the CU instead of having to use a junction box.

 

[westward10]

Just use some 10.0mm² 6181Y.

 

[Luka]

What about taking the SWA to its own little CU and split the incoming tails with Henley blocks?
House CU can be isolated without affecting garage

Thanks of the idea, I will have an electrician replacing my house CU at some point next year, so will definitely consider this option. At the moment I am looking for a temporary solution (as simple and cost effective as possible) and wanted to know if the one I suggested is acceptable and safe

 

[Luka]

Yes that would be acceptable if single insulated cables are going to be exposed then put them in some containment.

A torpedo would probably be the easiest, even if you have to cut the feed cable back so that the join is in the best place.

It would also mean that the Swa can be glanded properly into the CU instead of having to use a junction box.

I would definitely go for it but my CU in an old one with the back entry and no slots to gland SWA. I will do it properly when I replace the CU next year. Thank you

 

[Luka]

Just use some 10.0mm² 6181Y.

Thanks. Can I use 6181Y as earth if marked correctly?

 

[mainline]

Thanks. Can I use 6181Y as earth if marked correctly?

Just use some 10 mm earth cable.

Set of Brown & Blue Double Insulated Meter Tails & Earth 10mm 16mm 25mm 6181Y | eBay

We cut tails to the length you require, saving you having to buy a full drum.From the drop down boxes select the size of tails required from the following options:-. Set of 10mm Brown/Grey, Blue/Grey tails with 10mm earth.

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