Electrical question: What do I need?

[diy-newby]

Had some gates fitted late last year and the contractor hit the cable which feeds my outside plug socket and garden lights. Whoever installed the garden lights connected a normal PVC twin core and earth to the junction box which feeds the detached garage (by SWA), routed it under my path, then up onto my fence. The cable is housed in tubular plastic conduit (about 1" diameter) whilst on the fence and goes to a mini RCD, which then feeds the plug and lights.

Basically, I want to replace this 'broken' cable between the exterior JB and the fence.

My questions are:-

1) Was going to use SWA but have seen mention of Hi-Tuf.. Can this be buried? Need to bury the cable under my path for about 3 feet.

2) I don't want to replace the entire cable length to the outdoor RCD, but want to join the cable on the fence with a weatherproof JB. How do I get a watertight connection between the plastic conduit on the fence and the new JB which I will be adding to join the new / old cable?

Thanks

[timng]

I have buried some Hi-Tuf under a patio. The general consensus seemed to be that it is OK to bury it, but only with some mechanical protection (eg under a path or a patio), as it is not as resilient to spades etc as proper SWA. It's quite a bit more expensive than SWA, but a lot easier to terminate.

It doesn't need to be really watertight. Just drill a drain hole in the bottom to let out any water that gets in. As long as your joint is not sitting in water it will be fine.

Tim Mitchell

[Dave Plowman (News)]

On a scale of 1-10, SWA is hardly difficult to terminate, and it's not like there are loads of terminations needed.