SIST EN 17928-1:2025

SLOVENSKI STANDARD
01-februar-2025
Infrastruktura za plin - Postaje za injiciranje - 1. del. Splošne zahteve
Gas infrastructure - Injection stations - Part 1: General requirements
Gasinfrastruktur - Einspeiseanlagen - Teil 1: Allgemeine Anforderungen
Infrastructures gazières - Stations d'injection - Partie 1 : Exigences générales
Ta slovenski standard je istoveten z: EN 17928-1:2024
ICS:
27.190 Biološki viri in drugi Biological sources and
alternativni viri energije alternative sources of energy
75.180.01 Oprema za industrijo nafte in Equipment for petroleum and
zemeljskega plina na splošno natural gas industries in
general
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17928-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2024
EUROPÄISCHE NORM
ICS 75.200
English Version
Gas infrastructure - Injection stations - Part 1: General
requirements
Infrastructures gazières - Stations d'injection - Partie 1 Gasinfrastruktur - Einspeiseanlagen - Teil 1:
: Exigences générales Allgemeine Anforderungen
This European Standard was approved by CEN on 7 July 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17928-1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
1 Scope . 6
2 Normative references . 8
3 Terms and definitions . 10
4 General requirements . 14
4.1 General . 14
4.2 Quality and management system . 14
4.3 Environmental constraints . 15
4.3.1 General requirements . 15
4.3.2 Adaptation to the effects of climate change . 15
4.3.3 Mitigation of the impact of earthquakes . 16
4.3.4 Greenhouse gas emissions . 16
4.4 Coordination requirements and definition of interfaces . 18
4.5 On-site station diagram . 18
4.6 Explosion protection . 18
5 Operational functions . 19
5.1 Nominal service conditions of injection stations . 19
5.2 Backflow and refeeding to upgrading and/or production . 20
5.2.1 General requirements . 20
5.2.2 Backflow from an injection station . 20
5.2.3 Process-related controlled refeeding . 20
6 Overall safety requirements and protection against inadmissible operating modes . 20
6.1 General requirements . 20
6.2 Emergency energy supply . 21
6.3 Approach to protection against inadmissible operating modes . 21
6.4 Safety-related systems . 22
6.4.1 General requirements . 22
6.4.2 SIS safety-related systems . 22
6.4.3 Mechanical/pneumatic safety-related systems . 23
6.5 Injection station emergency shut-off . 23
6.6 Protections against inadmissible operation modes by safety-related systems . 23
6.6.1 Protection against inadmissible overpressure . 23
6.6.2 Protection against inadmissible under-pressure . 24
6.6.3 Protection against inadmissible gas temperatures . 24
6.6.4 Protection against potentially explosive atmospheres . 24
6.6.5 Protection against overflow and underflow . 24
6.6.6 Protection against inadmissible composition of the injection of gas . 24
6.6.7 Protection against use/ageing/corrosion . 25
6.7 Information security . 25
7 Specific requirements for systems and components . 25
7.1 Common requirements . 25
7.2 Systems . 25
7.2.1 Compression system . 25
7.2.2 Pressure control systems . 26
7.2.3 Gas analysis system. 26
7.2.4 Gas measuring systems . 28
7.2.5 Gas-Gas mixing system . 28
7.2.6 Odorization systems . 30
7.2.7 Deodorisation systems . 30
7.3 Components . 30
7.3.1 Mechanical safety devices for protection against inadmissible over- and
underpressure . 30
7.3.2 Isolation valves . 30
7.3.3 Pipework . 30
7.3.4 Pressure vessels . 31
7.3.5 Function test equipment . 31
8 Building and layout requirement . 32
8.1 General . 32
8.1.1 Transport and escape routes. 32
8.1.2 Noise control . 32
8.1.3 Isolation of gas flow outside of the place of installation . 32
8.1.4 Working areas . 33
8.1.5 Protection against harmful external influences . 33
8.1.6 Safety marking . 33
8.2 Indoor Housing . 33
8.2.1 General . 33
8.2.2 Installation in residential or commercial buildings . 33
8.2.3 Openings . 33
8.2.4 Ventilation . 33
8.2.5 Walls, ceilings, roofs, and ducts . 34
8.3 Outdoor Installation . 34
8.3.1 Outdoor station design . 34
9 Electrical requirements. 34
9.1 Electrical equipment . 34
9.2 Electrical resistance of floor coverings. 34
9.3 Cable ducts . 35
9.4 Isolating joints . 35
9.5 Lightning protection and equipotential bonding . 35
9.5.1 Protective equipotential bonding . 35
9.5.2 External and internal lightning protection, lightning protective equipotential
bonding. 35
10 Testing . 35
10.1 General requirements . 35
10.2 Tests carried out by the manufacturer . 36
10.3 Tests at the place of installation. 36
10.3.1 General requirements . 36
10.3.2 Compliance with safety-related approval and structural requirements . 36
10.3.3 Connections to the station . 36
10.3.4 Welds and Joints control . 36
10.3.5 Tightness. 37
10.3.6 Function and Setpoint . 37
10.3.7 Explosion protection . 37
10.4 Testing of electrical systems and equipment . 37
10.5 Proof of testing . 37
10.5.1 Testing by the manufacturer . 37
10.5.2 Testing at the place of installation . 38
10.5.3 Explosion protection testing . 38
10.5.4 Testing of electrical systems and equipment . 38
10.5.5 Testing documentation . 38
11 Commissioning . 38
12 Operation and maintenance . 39
12.1 General . 39
12.2 Data . 39
12.3 Maintenance, modifications and repair . 39
12.4 Training . 40
12.5 Work undertaken . 40
12.6 Fire fighting . 41
13 Decommissioning and disposal. 41
13.1 Decommissioning . 41
13.2 Disposal . 41
Annex A (informative) Coordination between operators . 42
Annex B (informative) Compression system specification data sheet . 44
Annex C (informative) Test schedule . 46
Annex D (normative) Test ratings in accordance with Clause 11 . 50
Annex E (informative) Refeeding station . 51
Annex F (normative) Mitigation of the impact of earthquakes . 52
Annex G (informative) Typical Gas Mixing Plants — Examples. 53
Annex H (informative) Categories of methane emissions in the scope of this document . 57
Bibliography . 58
European foreword
This document (EN 17928-1:2024) has been prepared by Technical Committee CEN/TC 234 “Gas
infrastructure”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2025, and conflicting national standards shall be
withdrawn at the latest by April 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document is part of the EN 17928 series, Gas infrastructure — Injection stations, which includes the
following parts:
— Part 1: General requirements
— Part 2: Specific requirements regarding the injection of biomethane
— Part 3: Specific requirements regarding the injection of hydrogen
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
1 Scope
This document establishes the functional requirements for stations for the injection of biomethane,
substitute natural gas (SNG) and hydrogen into gas transmission and distribution systems operated with
gases (natural gas, biomethane, SNG, hydrogen, gas mixtures) in accordance with European technical
rules that ensure the interoperability of systems.
Figure 1 describes the general approach including all the relevant functions that can be installed in
different configurations. The injection of Hydrogen is covered separately in EN 17928-3:2024.

Key
1 injection station – scope of this document
2 gas transmission or distribution system
3 measuring and control station – pressure regulation/ compression/gas mixing / flow control
4 gas analysis and sampling system
5 gas production
6 gas purification/upgrading
7 storage
8 odorization (optional)
9 adjusting gases (optional) (see 7.2.5)
(a) sampling unit to be connected to process line
Figure 1 — Example of an injection station with gas purification
This document also applies to refeeding stations that feed such gases back into upstream gas supply
networks; see Figure 2.
Key
1 downstream gas transmission or distribution network
2 upstream gas transmission or distribution network
3 refeeding station
Figure 2 — Refeeding station
This document represents the state of the art at the time of its preparation.
This document does not apply to injection stations operating prior to the publication of this document.
This document specifies common basic principles for 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 terms of additional requirements in national legislation/regulation than in this document,
CEN/TR 13737 (all parts) illustrates these terms.
CEN/TR 13737 (all parts) gives:
— legislation/regulations applicable in a member state;
— if appropriate, more restrictive national requirements;
— a national contact point for the latest information.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1081, Resilient, laminate and modular multilayer floor coverings — Determination of the electrical
resistance
EN 1594, Gas infrastructure — Pipelines for maximum operating pressure over 16 bar — Functional
requirements
EN 1776, Gas infrastructure — Gas measuring systems — Functional requirements
EN 1998 (all parts), Eurocode 8: Design of structures for earthquake resistance
EN 10204, Metallic products — Types of inspection documents
EN 12007-1:2012, Gas infrastructure — Pipelines for maximum operating pressure up to and including 16
bar — Part 1: General functional requirements
EN 12186, Gas infrastructure — Gas pressure regulating stations for transmission and distribution —
Functional requirements
EN 12405-1, Gas meters — Conversion devices — Part 1: Volume conversion
EN 12327, Gas infrastructure — Pressure testing, commissioning and decommissioning procedures —
Functional requirements
EN 12732, Gas infrastructure — Welding steel pipework — Functional requirements
EN 13774, Valves for gas distribution systems with maximum operating pressure less than or equal to 16
bar — Performance requirements
EN 14141, Valves for natural gas transportation in pipelines — Performance requirements and tests
EN 14382, Gas safety shut-off devices for inlet pressure up to 10 MPa (100 bar)
EN 16723-1, Natural gas and biomethane for use in transport and biomethane for injection in the natural
gas network — Part 1: Specifications for biomethane for injection in the natural gas network
EN 16726, Gas infrastructure — Quality of gas — Group H
EN 17649:2022, Gas infrastructure — Safety Management System (SMS) and Pipeline Integrity
Management System (PIMS) — Functional requirements
EN 17928-2:2024, Gas infrastructure — Injection stations — Part 2: Specific requirements regarding the
injection of biomethane
EN 17928-3:2024, Gas infrastructure — Injection station — Part 3: Specific requirements regarding the
injection of hydrogen
CEN/TS 17977, Gas infrastructure — Quality of gas — Hydrogen used in rededicated gas systems
EN 60034-1, Rotating electrical machines — Part 1: Rating and performance
EN IEC 60079-10-1, Explosive atmospheres — Part 10-1: Classification of areas — Explosive gas
atmospheres
EN 60079-14, Explosive atmospheres — Part 14: Electrical installations design, selection and erection
EN 60947-5-1, Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and switching
elements — Electromechanical control circuit devices
EN 60204-1, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
EN 61508-1, Functional safety of electrical/electronic/programmable electronic safety-related systems —
Part 1: General requirements
EN 61511 (all parts), Functional safety — Safety instrumented systems for the process industry sector
EN 62305 (all parts), Protection against lightning
EN 62305-2, Protection against lightning — Part 2: Risk management
EN IEC 62443 (all parts), Security for industrial automation and control systems
HD 60364 (all parts), Low-voltage electrical installations
HD 60364-4-41, Low-voltage electrical installations — Part 4-41: Protection for safety — Protection
against electric shock
HD 60364-5-54, Low-voltage electrical installations — Part 5-54: Selection and erection of electrical
equipment — Earthing arrangements and protective conductors
EN ISO 10715, Natural gas — Gas sampling (ISO 10715)
EN ISO 12213 (all parts), Natural gas — Calculation of compression factor (ISO 12213 (all parts))
EN ISO 12944 (all parts), Paints and varnishes — Corrosion protection of steel structures by protective
paint systems (ISO 12944 (all parts)
EN ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles
for design (ISO 13849-1)
EN ISO/IEC 27001, Information security, cybersecurity and privacy protection — Information security
management systems — Requirements (ISO/IEC 27001)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
injection station
umbrella term covering all necessary equipment for the injection of biomethane, substitute natural gas
(SNG) and hydrogen into gas infrastructure, including the site and the housing
Note 1 to entry: See Figure 1.
3.2
hydrogen
gaseous hydrogen with a certain purity as described in CEN/TS 17977
[SOURCE: CEN/TS 17977:2023, modified]
3.3
biomethane
gas comprising principally methane, obtained from either upgrading of biogas or methanation of bio-
syngas
Note 1 to entry: Composition given in EN 16723-1.
[SOURCE: EN 16723-1:2016, 3.3]
3.4
bio-syngas
gas, comprising principally carbon monoxide and hydrogen, obtained from gasification of biomass
[SOURCE: EN 16723-1:2016, 3.4]
3.5
substitute natural gas
SNG
gas which is interchangeable in its properties with natural gas
Note 1 to entry: Substitute natural gas is also called synthetic natural gas.
3.6
gas mixture
combination of different single gases deliberately mixed in specified proportions
[SOURCE: ISO 10286:2015, definition 704]
3.7
refeeding station
station for feeding of gas back into upstream gas supply networks
3.8
monitoring and control devices
process measuring and control technology devices designed for the operation of the station as intended
Note 1 to entry: Such equipment is used for automation functions such as instrumentation and control, signalling,
recording, etc.
3.9
gas infrastructure
pipeline system including pipework and their associated stations for the transmission and distribution
of gas
Note 1 to entry: An injection station is part of the gas infrastructure.
[SOURCE: EN 12007-1:2012, 3.1.1]
3.10
odorization
addition of odorants to gas (normally odourless) to allow gas leaks to be recognized by smell at trace
levels (before accumulating to dangerous concentrations in air)
[SOURCE: EN 16723-1:2016, 3.15]
3.11
protective measure
means used to reduce risk
Note 1 to entry: Protective measures include risk reduction by inherently safe design, protective devices,
personal protective.
[SOURCE: ISO/IEC Guide 51:2014, 3.8]
3.12
risk
product of the damage which will be caused by a potential accident and its probability
[SOURCE: ISO/TR 15916:2015, 3.93]
3.13
hazard
anything which is a source of potential loss of inventory or damage of the gas infrastructure
[SOURCE: EN 17649:2022, 3.5]
3.14
safety
condition of the gas infrastructure being acceptable for the population, for the environment and for the
continuity of supply ensured by the adoption of adequate measures in the design, construction, operation,
maintenance and abandonment of the gas infrastructure
[SOURCE: EN 17649:2022, 3.8]
3.15
leak
unwanted opening or openings through a containment system that could permit the escape of the
contents
[SOURCE: EN ISO 12807:2021, 3.6]
3.16
safety function
function to be implemented by an electrical/electronic/programmable electronic system E/E/PE or
mechanical/pneumatic safety-related system or other risk reduction measures, that is intended to
achieve or maintain a safe state for the Equipment Under Control (EUC), in respect of a specific hazardous
event
EXAMPLE Examples of safety functions include:
—  functions that are required to be carried out as positive actions to avoid hazardous situations (for example
switching off a motor); and
—  functions that prevent actions being taken (for example preventing a motor starting).
[SOURCE: EN 61508-4:2010, 3.5.1]
3.17
Equipment Under Control
EUC
machinery, apparatus or plant used for processing, transportation or other activities which Parameter
Under Control (PUC) are regularly supervised
Note 1 to entry: In the case of this document, the EUC is the complete downstream system.
[SOURCE: EN 61508-4:2010, 3.2.3]
3.18
Parameter Under Control
PUC
parameter which is continuously controlled and necessary to ensure safety and operation of the
Equipment Under Control (EUC)
3.19
safety system
designated system that:
— implements the required safety functions necessary to achieve or maintain a safe state for the
Equipment Under Control (EUC); and
— safely prevents any process parameters to exceed the permissible tolerances; and
— is intended to achieve, on its own or with other safety-related systems and other risk reduction
measures, the necessary safety integrity for the required safety function
Note 1 to entry: The term refers to those systems, designated as safety-related systems, that are intended to
achieve, together with the other risk reduction measures.
[SOURCE: EN 61508-4:2010, 3.4.1]
3.20
Safety Instrumented System
SIS
instrumented system used to implement one or more safety instrumented functions
Note 1 to entry: A SIS is composed of any combination of sensor(s), logic solver(s), and final element(s) (see
EN 61511-1:2017, 3.2.67).
Note 2 to entry: A SIS is equivalent to a safety-related system, which is defined under EN 61508-4.
[SOURCE: EN 50495:2010, 3.5]
3.21
mechanical safety system
system used to implement one or more safety-related functions
Note 1 to entry: Such devices operate without energy from external sources (e.g. safety shut-off valves, spring-
loaded safety relief valves).
3.22
limiter
device which either activates the means for correction or provides for shutdown or shutdown and lockout
[SOURCE: EN 764-7:2002, 3.16]
3.23
gas compression system
system designed to boost the pressure of gaseous media
Note 1 to entry: The system comprises all types such as fans, compressors, etc., including relevant control and
safety systems.
3.24
competent person
person who is trained and experienced to perform activities related to injection stations
Note 1 to entry: National regulations can apply regarding the qualification of the person.
3.25
authorized person
competent person who is appointed to fulfil a given task on injection stations
Note 1 to entry: The appointment procedure is defined in each member country.
3.26
technical expert
independent person who has proven the qualification required to carry out the technical safety test of
injection stations
Note 1 to entry: National regulations for regulatory recognition can apply.
3.27
gas mixer
blender
device used to mix two or more technical gases which is available in various versions for different gas
combinations and different flow rates; depending on the requirements, mechanical, diffusion-mixing or
mass flow-controlled mixing systems are used
3.28
adjusting gases
gases additionally injected in order to adjust gas properties
Note 1 to entry: E.g. for gas billing according to national regulations.
4 General requirements
4.1 General
The design, manufacture, construction, testing, commissioning, and operation of stations shall be in
accordance with the acknowledged rules of technology and the applicable regulatory requirements and
stipulations. Stations shall be designed and constructed to have a clear layout and shall be accessible and
easy to operate, always taking into account operational and maintenance requirements.
Consideration should be given to siting and location of the station on the basis of the risk associated with
injecting hydrogen or biomethane.
NOTE National and local laws and regulations can apply.
The appropriate specifications for gases injected into the gas network shall be observed:
— for the injection of SNG, EN 16726 shall apply;
— for the injection of biomethane, EN 16723-1 shall apply;
— for the injection of Hydrogen, CEN/TS 17977 shall apply.
The applicable requirements on refeeding stations are given in Annex E.
4.2 Quality and management system
The life of a station can be divided into four phases:
1) design;
2) construction, testing and commissioning;
3) operation and maintenance;
4) decommissioning and disposal.
The full life expectancy of the consequences of each of the four phases shall be considered. The full life
expectancy of a component shall be used to determine the relevant timeframes to be assessing climate
change aspects that could affect it.
A quality and management system shall be applied in accordance with this document, which includes
these four phases. Reference shall be made to EN 17649 or equivalent quality system standards.
NOTE EN ISO 9001 is available for purpose.
An information security management system according EN ISO/IEC 27001 shall be applied at least for
the phases 2 and 3.
Standardized safety design rules on pressure regulation stations shall be incorporated and documented
in the quality or management system.
4.3 Environmental constraints
4.3.1 General requirements
Energy conserving approaches should also be considered in order to reduce emissions.
Consideration should be given to the requirements of EN ISO 14001, EN ISO 14090 and EN ISO 50001.
NOTE 1 Requirements for the mitigation of environmental issues are detailed in the relevant specific system
standards (e.g. EN 12186, EN 1776).
It should be verified if the site is a protected area in terms of noise, ground water, proximity of dwellings
and other relevant aspects specific to minimizing the impact on the surroundings.
The compatibility of the materials should be considered to minimize the environmental impact of the
building.
Particular measures are to be taken to minimize emissions to air at the commissioning stage and during
maintenance/repair operations. Furthermore, the gas used for purging (air, nitrogen or other) should be
chosen with regard to the possible impact around the site.
At the stage of planning and designing, adequate procedure for assembling/commissioning/
decommissioning should be foreseen for proper waste disposal, taking into account the different
materials (e.g. lubrication, electrical elements).
NOTE 2 There can be legislation describing the separation of waste materials (e.g. used oil, filter cartridges,
liquids from drains, chemical waste, packing materials, etc.) and its disposal, for example by certified waste disposal
companies or organizations. Information is provided by the manufacturers for dealing with the disposal of
replaceable parts.
NOTE 3 National and local laws and regulations can apply.
4.3.2 Adaptation to the effects of climate change
4.3.2.1 General
The risk assessment and possible effects due to climate change that might occur over the full expected
lifetime of the station shall be done according to EN 17649 or a comparable system. The reference to
EN 17649 concerns the measures and does not address the responsibility, therefore it is not restricted to
system operators. This shall involve the use of geographically relevant climate change data to determine
which climate change scenarios are most important to interpret for the relevant locality.
Two main climate change considerations shall be recognized depending on the location where the
injection station operates:
— extreme weather events – Climate change is likely to bring an increased number, and increased
intensity, of weather events (e.g. more heatwaves, higher temperatures, floods, droughts, and
increased storminess);
— shifts in averages – Slow-onset changes in, for example, mean summer temperatures, average rainfall
over a given season and sea-level rise.
4.3.2.2 Design phase
During the technical design phase, assessment of climate change impacts over the full expected lifetime
of the station relevant to the specific conditions and locality of the site shall be done.
EXAMPLE Establishing whether higher expected extreme temperatures will impact the design of cooling
devices.
4.3.2.3 Construction, commissioning and decommissioning
Climate change impacts shall be assessed over the full life of the activity regarding construction,
commissioning, and decommissioning activities.
EXAMPLE Ensuring a workforce is not expected to work in temperature extremes without adequate
precautions.
4.3.2.4 Operation and maintenance
Maintenance checks and updating activities shall be carried out according to the maintenance strategy of
the TSO/DSO, in addition to exceptional checks following extreme weather events that could potentially
compromise the function of the injection station.
NOTE National rules for maintenance checks and updating activities can exist.
These activities shall ascertain whether the station has been compromised and identify and take remedial
action.
Operation and maintenance activities shall include:
— changing site characteristics due to extreme weather events being experienced, including how these
can change due to climatic changes over the expected full life of the station;
— physical accessibility of the injection station;
— functionality of the injection station;
— integrity of the injection station;
— ensuring that repairs are capable of withstanding changing site characteristics due to climate change
over the full expected life of the repair.
4.3.3 Mitigation of the impact of earthquakes
Earthquakes can affect all parts of the gas infrastructure. Some regions are more prone to earthquakes
others less. Planning a gas infrastructure shall include verifying a probability for earthquakes in the
foreseen area for the planned location. If there is a risk for earthquakes Annex F shows how to proceed
and act appropriately.
4.3.4 Greenhouse gas emissions
4.3.4.1 General
As methane is a powerful greenhouse gas, methane emission management should be integrated in the
design, construction, commissioning, operation, maintenance and deconstruction phase to minimize
emissions.
The methane emissions from an injection station can be divided in 2 main categories:
— fugitives;
— vented.
NOTE Emissions due to safety functions and emergency situations as per 6.4 cannot be completely avoided.
The management of methane
...