Caravan Sites

Discussion in 'Electricians' Talk' started by electralight.com, May 8, 2006.

  1. electralight.com

    electralight.com New Member

    Caravan site PME single phase supply to 100 amp 1361 every van has own Consumer unit.

    The owners has just install earth rods should the earth of the consumer unit be connected to the PME earth or just the earth rod, regs seem to say the latter.

    Many Thanks
     
  2. X

    X New Member

    Latter is good..

    Let the pme protect the cable only.
     
  3. Home Farm

    Home Farm New Member

    I'm fairly certain that PME is not permitted on caravan sites or petrol stations but I haven't got the regs with me.

    If each caravan is TT that should be OK.
     
  4. steve CF

    steve CF New Member

    just looking at reg 608-13-05

    could any one please explain what its saying ?
     
  5. X

    X New Member

    Well the caravan is now TT

    Socket outlets max 3 on a circuit... must be rcd protected.

    So apart from 3 per circuit, it was stating what we already should of complied with.(cos its tt)
     
  6. Lokkars Daisy

    Lokkars Daisy New Member

    Caravan pitch supply equipment should preferably be located adjacent to the pitch. In difficult circumstances, supply equipment may be sited further from the pitch, provided it is not more than 20 m measured from any point on the pitch or pitches it is intended to serve (Regulation 608-13-01 refers).





    Socket-outlets and their enclosures
    Regulation 608-13-02 requires that every socket-outlet and its enclosure forming part of caravan pitch supply equipment comply with BS EN 60309-2, and meet the degree of protection provisions of IP4X.
    Caravan pitch supply equipment must be placed at a height of between 0.80 m and 1.50 m from the ground to the lowest parts of socket-outlets.
    At least one socket-outlet must be provided for each caravan pitch, and its current rating must be not less than 16 A.
    Grouped socket-outlets must be on the same phase
    Regulation 608-13-06 states that grouped socket-outlets must be connected to the same phase of the supply.
    Overcurrent protection
    Regulation 608-13-04 requires that each caravan pitch socket-outlet is individually protected by an overcurrent device.




    RCD protection
    Regulation 608-13-05 requires that caravan pitch socket-outlets are protected individually or in groups of not more than three by a residual current device. RCDs must comply with BS 4293, BS EN 61008-1, or BS EN 61009-1, and have a rated residual operating current () not exceeding 30 mA and an operating time not exceeding 40 ms when type-tested at a residual current of , as required by Regulation 412-06-02 (ii).
    PME must not be used
    Regulation 9(4) of the Electrical Safety, Quality and Continuity Regulations 2002 prohibits the connection of any metalwork in a caravan or boat to the combined protective and neutral conductor of the public electricity network.
    Consequently, the earthing contacts and metallic cases (if any) of caravan pitch socket-outlets must not be connected to a PME earthing terminal, where one is provided by the electricity distributor (i.e. at the site supply intake position). Instead, as required by Regulation 608-13-05 in such circumstances, the protective conductor of each socket-outlet circuit must be connected to an installation earth electrode and the requirements for a TT system must be met.*
    The separation of the caravan pitch TT earthing arrangement from the distributor’s PME earthing terminal may be made at one of a number of places, the two main possibilities being:
    • at the consumer’s distribution position
    • at the pitch supply position

    There is no requirement that the earthing arrangement for caravan pitch socket-outlets must always be TT. If, instead of a PME earthing terminal, the distributor provides an earthing terminal for the installation which is connected to the star point of the distribution transformer by a separate protective conductor (not combined with the supply neutral conductor), a TNS earthing arrangement can be used for the pitch socket-outlets, and an installation electrode is not then needed.
     

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