Title Page
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Site conducted
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Conducted on
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Prepared by
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Location
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Operative being assessed
Action on site
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Carries out checks to establish the number of customers being supplied and isolates ECV prior to <br>disconnection
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Uses the Voltstick prior to undertaking any work on any exposed metalwork to ensure it is safe to <br>continue and repeats when necessary
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Carefully removes the plug / cap from the service tee in case the integral plug / stopper is not fitted
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Lowers the integral stopper to the bottom of the tee if one is fitted. If there is no integral stopper then <br>the service must be cut of in accordance with the current SGN procedure
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Checks the integral plug / stopper for leakage using SGN approved leak detection fluid and replaces the<br>plug / cap on top of the service tee
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Follow for disconnection of PE service
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Disconnects the service pipe as near to the tee as possible using damp cloths draped over the section to <br>be cut out and ensures the ends of the cloth are in contact with the ground. Caps downstream <br>(property side) pipe with an electrofusion cap end<br><br>
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Loosens the service tee on the main taking care to restrict leakage to a minimum
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Centralises the drilling machine over the tee, fits carrier spindle and removes the tee under controlled <br>gas conditions. Withdraws the tee into the canopy and closes the gate valve<br>
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Attaches a mains plug onto the carrier spindle and plugs off the main under controlled gas condition <br>(tapered plugs must not be used)
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Removes the drilling machine from the main, tightens the plug and tests for leakage using SGN <br>approved leak detection fluid
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Removes the old service including the existing stand pipe and service entry from the property. Makes <br>good all redundant holes and any damage
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Question - What action should be taken if it is not possible to remove the standpipe?
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Answer - The underground entry must be capped off to prevent the ingress of gas at a later date and the standpipe
labelled accordingly with (SGNB608) -
Seals any abandoned service pipe ends in the ground using suitable caps
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Checks properties to confirm that all supplies have been isolated
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Follow for disconnection of metallic service
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Removes wrapping from the service pipe at two places where cuts will be made, approximately 300mm <br>apart and cleans pipe
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Fits a temporary continuity bond (TCB) across section to be removed ensuring that the pipe where the <br>TCB is to be clamped is clean and wired brushed to a bright finish to ensure a good electrical contact
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Wraps the pipe with a suitable denso tape / mastic bandage prior to cutting
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Dons breathing apparatus complete with associated PPE
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Cuts through the pipe using a hacksaw ensuring that the cut piece (approx. 300mm) can be easily <br>removed
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Removes the cut section of pipe and caps downstream (property side) pipe with an approved cap end
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Disconnects the continuity bond from the service and disconnects the pipe from the outlet of the <br>service top-tee
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Loosens the service tee on the main taking care to restrict leakage to a minimum
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Centralises the drilling machine over the tee, fits carrier spindle and removes the tee under controlled <br>gas conditions. Withdraws the tee into the canopy and closes the gate valve
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Attaches a mains plug onto the carrier spindle and plugs off the main under controlled gas condition <br>(tapered plugs must not be used)
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Removes the drilling machine from the main, tightens the plug and tests for leakage using SGN <br>approved leak detection fluid
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Removes the old service including the existing stand pipe and service entry from the property. Makes <br>good all redundant holes and any damage
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Question - What action should be taken if it is not possible to remove the standpipe?
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Answer - The underground entry must be capped off to prevent the ingress of gas at a later date and the standpipe
labelled accordingly with (SGNB608) -
Seals any abandoned service pipe ends in the ground using suitable caps
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Checks properties to ensure that all supplies have been isolated
Sign off
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Name of assessor
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Pass or refer for additional training
