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  1. bigswitch

    Proving an 11kV cable to ensure dead

    isquaredr , thanks again[thumbsup2]. May I just verify what you are saying..... 1)earths would be ON at both ends before spiking? 2)You would cancel the SFT with 'earths replaced'? Then issue a PTW 'to remove spiking gun, carry out straight joint' for example? From the Q&A paper I was...
  2. bigswitch

    Proving an 11kV cable to ensure dead

    CME? Circuit main earth - a rated earthing device at an electricity distribution sub-station or on an overhead line(s). earths the conductor to be worked on for safety. DNO? distribution network operator (UK term) SFT?Sanction fot test (saftey document) PTW? Permit to work (saftey document) In...
  3. bigswitch

    Proving an 11kV cable to ensure dead

    isquaredr thank you for that, so both earths SHOULD be on during spiking. I'm struggling with this as a code of practice Q&A paper states (of a particular DNO that am researching)that "Q)After spiking a cable how would you remove the spiking gun? A)replace the CME after spiking the cable and...
  4. bigswitch

    Proving an 11kV cable to ensure dead

    To prove an electricity distribution cable of 11kV dead, the cable is spiked using a spike gun with a blank cartridge. Are the circuit main earth(s)(CME's) left on or off whilst spiking? If the earths are at either end of the circuit (cable ends), do they both need to be on? Usually one cme is...
  5. bigswitch

    Protection Guidelines

    http://www.areva-td.com/servlet/ContentServer?pagename=TDE/AGF_Product/Product_Detail&c=AGF_Product&cid=1056536208199&rid=1018348589697&lid=en&tab=Chapters&id=1056536208254 some useful information on here!
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