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DN09 Live Service Insertion Checklist

by Alan Milford, from the Community

This DN09 live service insertion checklist guides gas utility technicians through safe, compliant insertion of PE pipe into an existing service. It covers site tracing, barhole leakage surveys, excavations, electrical cross bonding, valve and gland assembly setup, pressure verification, rod and elbow testing, pipe cleaning, integrity and soundness tests, purging, sealing, and final reconnection to the property. It aligns with current SGN procedures and emphasizes safety checks, pressure monitoring, and waste disposal requirements.

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Eliminate mistakes made by paper-based processes

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Confirm accountability and compliance with a digital log

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This community page makes available free workplace checklists and templates created by other users within the SafetyCulture community. SafetyCulture has re-published this content and where possible, has credited the original author. SafetyCulture has not verified the accuracy, reliability or suitability of any community content. You agree that your use of any of this content is in accordance with SafetyCulture’s Terms and Conditions.

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DN09 Live Gas Service Insertion
Use this DN09 checklist to guide safe live gas service insertion. It covers pre-job assessment, tracing the service, barhole leakage survey, excavation and Voltstick checks, confirming suitability, and closing the ECV. Follow steps for installing a valved gland assembly, measuring and cleaning the carrier pipe, integrity testing PE pipe at 100 mbar for 5 minutes, connecting the pipe pushing machine, purging and monitoring district mains pressure, and verifying an effective seal. Includes purge stack clearances 2.5 m above excavations and 5 m downwind, end sealing, soundness testing, relaying to the property, purging, final leakage survey, and SGN-compliant sign off.
by Alan Milford, from the Community
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DN-10 Dead Service Insertion Checklist
Use this DN-10 Dead Service Insertion checklist to assess competency and document each step of replacing a steel gas service by dead insertion. It covers site checks for corrosion, excavation and decommissioning, purging to 0% gas in air, ECV removal and standpipe inspection, measuring service length and gas load, calculating PE diameter and pressure drop, clearing debris, safe insertion and communication, visual checks for kinks and scoring limits over 10%, fitting the service head adaptor and IECV, connection to the main, pressure testing, commissioning and purging in line with SGN procedures, sealing and annulus filling, applying electrical insulation, and completing the service information label.
by Alan Milford, from the Community
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Template
DN-10 Dead Service Insertion
This DN-10 dead service insertion checklist guides operatives through safe replacement of decommissioned steel gas services with PE pipe. It covers visual inspection for corrosion and obstructions, excavation and isolation, purging to 0 percent gas in air, measuring service length and gas load, selecting PE diameter, inserting with a pushing machine or by hand, integrity checks, pressure testing, commissioning and purging per SGN procedures, sealing the old service, and completing documentation at the ECV.
by Alan Milford, from the Community
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Template
Live Mains Insertion on Low-Pressure Mains up to 180mm
This procedural checklist guides field operatives through live mains insertion on low-pressure gas mains up to 180mm. It details required tools and equipment, site preparation, bypass commissioning, flow stopping, purging, integrity pressure testing, insertion, and completion. It also covers service transfers, host main decommissioning, and live head recovery. Emphasis is placed on safety controls, gas isolation, pressure monitoring, leak detection, and proper reinstatement, with a final assessor sign-off.
by Alan Milford, from the Community
Downloads: 0
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DN09 Live Gas Service Insertion

Use this DN09 checklist to guide safe live gas service insertion. It covers pre-job assessment, tracing the service, barhole leakage survey, excavation and Voltstick checks, confirming suitability, and closing the ECV. Follow steps for installing a valved gland assembly, measuring and cleaning the carrier pipe, integrity testing PE pipe at 100 mbar for 5 minutes, connecting the pipe pushing machine, purging and monitoring district mains pressure, and verifying an effective seal. Includes purge stack clearances 2.5 m above excavations and 5 m downwind, end sealing, soundness testing, relaying to the property, purging, final leakage survey, and SGN-compliant sign off.

by Alan Milford, from the Community

Get

Template

DN-10 Dead Service Insertion Checklist

Use this DN-10 Dead Service Insertion checklist to assess competency and document each step of replacing a steel gas service by dead insertion. It covers site checks for corrosion, excavation and decommissioning, purging to 0% gas in air, ECV removal and standpipe inspection, measuring service length and gas load, calculating PE diameter and pressure drop, clearing debris, safe insertion and communication, visual checks for kinks and scoring limits over 10%, fitting the service head adaptor and IECV, connection to the main, pressure testing, commissioning and purging in line with SGN procedures, sealing and annulus filling, applying electrical insulation, and completing the service information label.

by Alan Milford, from the Community

Get

Template

DN-10 Dead Service Insertion

This DN-10 dead service insertion checklist guides operatives through safe replacement of decommissioned steel gas services with PE pipe. It covers visual inspection for corrosion and obstructions, excavation and isolation, purging to 0 percent gas in air, measuring service length and gas load, selecting PE diameter, inserting with a pushing machine or by hand, integrity checks, pressure testing, commissioning and purging per SGN procedures, sealing the old service, and completing documentation at the ECV.

by Alan Milford, from the Community

Get

Template

Live Mains Insertion on Low-Pressure Mains up to 180mm

This procedural checklist guides field operatives through live mains insertion on low-pressure gas mains up to 180mm. It details required tools and equipment, site preparation, bypass commissioning, flow stopping, purging, integrity pressure testing, insertion, and completion. It also covers service transfers, host main decommissioning, and live head recovery. Emphasis is placed on safety controls, gas isolation, pressure monitoring, leak detection, and proper reinstatement, with a final assessor sign-off.

by Alan Milford, from the Community

Get

DN09 Live Service Insertion Checklist

About author

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DN09 Live Gas Service Insertion

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DN09 Live Gas Service Insertion

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