Power supply to greenhouse

Discussion in 'Electricians' Talk' started by starbuild, Feb 12, 2004.

  1. starbuild

    starbuild New Member

    I need to supply power to my greenhouse which is about 30 yards down the garden. What are the pros and cons of burying 25 mm MDPE blue pipe about a foot deep below my lawn to carry 2.5 mm T and E from its own fuse in the CU?
  2. RES

    RES New Member

    A foot sounds a bit shallow, you should be going for 500mm or 1 foot 8 inches at a minimum. Obviously avoiding anywhere likely to be dug up during gardening.
    The cable should really be armoured, and the armour wires made off to earth in case a spade etc pierces the cable.
  3. ADSL Nation

    ADSL Nation New Member

    Use proper SWA it's not expensive, under £1 per m from an electrical wholesaler.
  4. limestone cowboy

    limestone cowboy New Member

    I'd use armoured. It will be difficult to feed the T&E down the MDPE and there's always the risk that it will get mistaken for a water pipe. Also cables are supposed to be black or in black ducts. The cable should be about 450mm deep on private property and under footpaths. I would put marker tape 150mm above the cable.

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