National Grid Gas Distribution, Northern Gas Networks, SGN and Wales and West Utilities
Andrew Newton – National Grid Innovation Portfolio Manager
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Gas Distribution Networks
To develop a methodology that satisfies obligations under the Pipeline Safety Regulations to enable Tier 2/3 pipes to be safely maintained for continued use, or be categorised in such a way to prioritise for remediation or decommissioning. In this context remediation could involve internal repair of pipe and/or joints, or semi structural linings, or fully structural linings if the pipe required decommissioning.
Success of the project would be:
- Evidence of national and global work on CI test assessments. Contact with suitable broad range of stakeholders and review of
- Substantive and reliable data has been sourced on CI failure data. Learning adds value in addition to pipe risk score and that
the output feeds into the pass/fail criteria methodology
- Commercially available and cost effective CI inspection techniques have been identified. A suitable range of techniques that
enables pipes of greater or lesser risk score or other risk factors can be assessed. Ideally 3 or 4 techniques are or could be developed to be applied to pipes of differing initial levels of risk score
- Technically acceptable, cost effective and practical decision support methodologies have been identified. That GDNs reach
consensus on approach and external stakeholders sign on (HSE).