Mains Power Cable Depth

This cable should be buried at a depth of 24 inches.

Mains power cable depth.

These depth reductions apply no matter which burial method is chosen. At 24 inches you can bury underground feeder cable using pvc conduit to 18 inches below ground only where the wire comes up. All cables and ducts for lv mains and 11kv circuits are to be installed by central networks or its agents. This is available from our approved suppliers.

Cable mark tape or tiels must be installed 150mm above the top of the apparatus this needs to have ssen branding on. Conduits are required for installation in 2 inches of solid rock with concrete. To be used for single phase service cables only. Mains cable for urban or suburban installations with cable runs up to 50 metres is often single core 16 mm 2 neutral screen or three core 16 mm 2 neutral screen.

Polypipe rigiduct outside diameter is 38mm. Direct cable burial uf cable underground feeder cable is specially designed and manufactured with properties that make it ideal for burial. Under a driveway you may only need 12 inches of burial depth. The cable is less likely to be cut or disturbed by typical digging if it is this far below ground.

Outside diameter is 125mm. The generally applicable depth is 12 inches or you can reduce it to 6 inches if you protect the cables with 2 inches of concrete. Of nominal diameter 115 mm or less the minimum depth to the top of the external surface of but exclude power cables watermains and gas mains involving a maximum of two cable ducts ii for non energised underground services which include telecommunication cables laid in ducts cycle track verge side lane and back lane will be counted and. Mains cable for rural installations and cable runs up to 200 metres is 95 mm 2 four core aluminium with high impact sheathing.

However there is guidance. There are no statutory depths for underground cables as ground levels may have changed since the original installation and without the knowledge of the cable owner.