DN 22 Meter Disconnection Checklist

This DN 22 meter disconnection checklist supports field engineers and servicelayers performing safe domestic gas meter isolation during engineering works. It guides pre-disconnection checks such as theft-of-gas indicators, verification of Main Equipotential Bonding, and confirming meter size and adaptors. Steps include using a Voltstick, fitting Temporary Continuity Bonds without bridging insulating joints, and advising customers to shut off appliances. It outlines evacuation triggers such as 23% LEL, criteria for safe re-occupation, and identifying Independent Gas Transporter sites. It references completing LIS or eLIS and the Gas Escape Risk Assessment Matrix, selecting the correct risk prioritisation score, sealing barholes, and reporting incidents per SGN procedures.