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Kommittébeteckning: SIS/TK 289 (Gassystem)
Källa: CEN
Svarsdatum: den 22 mar 2021
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This document specifies the safety, design, construction, performance requirements and testing of Temperature Control Functions (TCF) and Combustion Product Discharge Safety Devices (TTB) for gas and liquid fuel burners and appliances burning one or more gaseous or liquid fuels, hereafter referred to as ‘TCF’ or ‘TTB’.”
It also describes the test procedures for checking compliance with these requirements.
This document is applicable to AC and DC supplied TCF and TTB (for TCF and TTB supplied by stand-alone battery system, battery systems for mobile applications or systems which are intended to be connected to DC supply networks, see Annex I).
This document is applicable to electronically based TTB and TCF only.

Kommittébeteckning: SIS/TK 289 (Gassystem)
Källa: CEN
Svarsdatum: den 29 mar 2021
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This document describes the specific functional requirements for the design, construction, operation, maintenance and disposal activities for safe and secure gas compressor stations.
This document applies to new gas compressor stations with a Maximum Operating Pressure (MOP) over 16 bar and with a total shaft power over 1 MW. For existing compressor stations, this document applies to new compressor units. Where changes/modifications to existing installations or gas composition take place, due account may be taken of the requirements of this document.
This document does not apply to gas compressor stations operating prior to the publication of this document.
The purpose of this document is intended to:
— ensure the health and safety of the public and all site personnel,
— to cover environmental issues,
— to avoid incidental damage to nearby property, and
— to open the gas infrastructure to accommodate renewable gases, including a possible design for 100 % hydrogen.
This document specifies common basic principles for the gas infrastructure. Users of this document are expected to be aware that more detailed national standards and/or codes of practice can exist in the CEN member countries.
This document is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this document, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts). CEN/TR 13737 (all parts) gives:
— clarification of all legislations/regulations applicable in a member state;
— if appropriate, more restrictive national requirements;
— a national contact point for the latest information.
This document does not apply to:
— off-shore gas compressor stations;
— gas compressor stations for compressed gas filling-stations;
— customer installations downstream of the point of custody transfer;
— design and construction of driver packages (see Annex C);
— mobile compressor equipment.
For supplies to utility services such as small central heating boilers reference is made to EN 1775.
Figure 1 shows a schematic representation of compressor stations in a gas infrastructure. For further information refer to Annexes A, B, C, D, E and F.

Key
1 compressor station
2 distribution system
3 metering and/or pressure limiting or regulation station
4 pig traps
5 transmission line
6 storage facility
* part of pipeline but operated by safety control systems

NOTE Parts indicated in frames by thick lines are within the scope of this document.

Figure 1 — Schematic representation of compressor stations in the gas infrastructure