IGEM - GL/2
Planning of gas transmission and storage systems operating at pressures exceeding 16 bar
|Publication Date:||1 March 2018|
This Standard contains advice on the planning and design of Natural Gas (NG) systems and any associated storage (hereafter referred to as "systems") of MOP exceeding 16 bar. The Standard does not encompass the availability of gas entering the system. Its purpose is to ensure that there is sufficient transportation capability in the system.
Note: Compliance with this Standard ensures that as far as is reasonably practicable, a system is able to maintain security of supply under the most onerous combinations of flow and pressure on the system, and that adequate arrangements are established to minimise the risk of a supply emergency (see Appendix 3).
This Standard includes the requirements for information exchange between different GTs and network owners at system boundaries, to ensure the continuity of gas flow.
This Standard is intended to be used by persons involved in the planning of new systems and for the ongoing monitoring and reinforcement of existing systems, where appropriate.
This Standard applies to the planning of new systems and replacement of, or extension to, servicing, maintenance of existing systems. It is not retrospective, but it is recommended that existing systems be modified to meet this Standard, when appropriate.
Note: Standards rarely cover the retrospective issue of existing installations. They can, however, set a basis for consideration of performance upon which a risk assessment can be developed.
This Standard does not cover the physical design, construction, operation and maintenance of systems, or any routing and environmental considerations covered by legislation other than that referred to above. Refer to IGEM/TD/1 for further information on these requirements.
All pressures are gauge pressures unless otherwise stated.
Italicised text is informative and does not represent formal requirements.
Appendices are informative and do not represent formal requirements unless specifically referenced in the main sections via the prescriptive terms "must", "shall", or "should".