IGEM/TD/21 - Reference Standard for Hydrogen distribution for new steel and PE mains and services
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Description
This Reference Standard addresses the issues arising from the proposal to distribute
Hydrogen through steel and polyethylene (PE) pipelines (mains and services) at pressures below 7 bar. Where the term pipeline is used, it applies to both mains and services; specific requirements for mains and services will be specified as mains or services.
This Reference Standard addresses Hydrogen services and service pipework. For the purposes of this Standard, the term “service” is used throughout for all requirements and is not limited to “service pipework”.
This Reference Standard covers new Hydrogen mains and services operating at MOP not exceeding 7 bar for:
- polyethylene (PE100) between 0ºC and 40ºC
- polyethylene (PE80) between -20ºC and 40ºC
- steel between -25ºC and 40ºC
This Reference Standard covers Hydrogen distribution for use in domestic and small commercial premises up to the supplier’s emergency control valve (ECV).
This Reference Standard is developed in the first instance to consider domestic and smaller commercial gas infrastructure. Additional safety measures and precautions which will need to be determined by risk assessment may be required for gas supply to more complex users such as:
- educational establishments
- multi-occupancy buildings
- non-standard distribution networks (networks which supply gas to commercial and domestic premises where there are sections of above and below-ground pipework in accessible areas such as shopping centres etc.)
- non-standards services to caravans, residential parks, and moored boats.