Mains Power Cable Depth

Outside diameter is 125mm.

Mains power cable depth.

At 18 inches you can use thwn 2 conductors inside a continuous length of pvc conduit which protects the wire all the way through the trench to the house. Mains cable for rural installations and cable runs up to 200 metres is 95 mm 2 four core aluminium with high impact sheathing. This cable should be buried at a depth of 24 inches. 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.

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. This is available from our approved suppliers. To be used for single phase service cables only. These depth reductions apply no matter which burial method is chosen.

A depth of 240mm below gardens and paths 100mm below roads and 650mm below agricultural land. All cables and ducts for lv mains and 11kv circuits are to be installed by central networks or its agents. Polypipe rigiduct outside diameter is 38mm. Under a driveway you may only need 12 inches of burial depth.

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. The cable is less likely to be cut or disturbed by typical digging if it is this far below ground. 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.

Direct cable burial uf cable underground feeder cable is specially designed and manufactured with properties that make it ideal for burial. Minimum excavation depth required a minimum depth duct cable size c 75mm of sand bedding please note that m represents the cable marker tile for 33kv.