1
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2
Critical components should be tested to validate that they are suitable for use.
Hydrogen fatigue tests can be carried out for small components. But for large
components, this is impractical due to the time and amount of hydrogen required for each
cycle, and therefore an alternative strategy needs to be developed:
For a component which will be submitted to less than 10 000 – 15 000 cyclic loadings
during its lifetime: a material compatible with hydrogen should be chosen, and then hydraulic
fatigue tests are carried out on the component made in such material.
For components which will be submitted to more than 10 000 – 15 000 cyclic loadings
during their lifetime, suitability for service needs to be further evaluated as even hydrogen
compatible materials may have reduced fatigue life in hydrogen service.
-> More information also in Chapter “Embrittlement and permeation (E)”
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The testing methods described in the standard ISO 11114-4 can be applied
if the system consists of hydrogen cylinders up to 3000 l
3
ISO 11114-1 Compatibility of metallic materials with gasses
ISO 11114-4 H2 compatibility test methods: Resistance to fatigue in H2 service ISO CD 15399
ISO 16111:2008 Transportable gas storage devices
Hydrogen absorbed in reversible metal hydrides, Edition 1
IEC 60079-29-1 Edition 1.0 (2007-08-09) Explosive atmospheres
Part 29-1: Gas detectors - Performance requirements of detectors for flammable gases
IEC 62282-3-150 Fuel cell technologies - Part 3-150: Stationary fuel cell power systems
Small stationary fuel cell power system serving as a heating appliance, Edition 1
IEC/TS 62282-7-2 Fuel cell technologies – Part 7-2: Single cell/stack-performance
test methods for solid oxide fuel cells (SOFC), Edition 1
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ISO 7866:1999 Gas cylinders -- Refillable seamless aluminium alloy gas cylinders
Design, construction and testing, Edition 1
ISO 9809-1:2010 Gas cylinders – Refillable seamless steel gas cylinders
Design, construction and testing
Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 Mpa, Edition 2
ISO 9809-2:2010 Gas cylinders - Refillable seamless steel gas cylinders
Design, construction and testing
Part 2: Quenched and tempered steel cylinders with tensile strength greater than or
equal to 1100 Mpa, Edition 2
ISO 9809-3:2010 Gas cylinders - Refillable seamless steel gas cylinders
Design, construction and testing
Part 3: Normalized steel cylinders, Edition 2
ISO/FDIS 7866 Gas cylinders -- Refillable seamless aluminium alloy gas cylinders
Design, construction and testing, Edition 2
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ISO/DIS 11119-1 Gas cylinders of composite construction
Specification and test methods
Part 1: Hoop wrapped composite gas cylinders and tubes, Edition 2
ISO/DIS 11119-2 Gas cylinders of composite construction -- Specification and test methods
Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes with load-sharing
metal liners, Edition 2
ISO/DIS 11119-3 Gas cylinders of composite construction -- Specification and test methods
Part 3: Fully wrapped fibre reinforced composite gas cylinders and tubes with non-metallic
and non-load-sharing metal liners
ISO/NWIP 11119-4 Gas cylinders of composite construction — Specification and test methods
Part 4: Fully-wrapped fibre reinforced composite gas cylinders with load-sharing welded
metal liners, Edition 1
ISO 11623:2002 Transportable gas cylinders
Periodic inspection and testing of composite gas cylinders, Edition 1
ISO/CD 11623 Transportable gas cylinders
Periodic inspection and testing of composite gas cylinders, Edition 2
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ISO 20421-1:2006/Cor.1:2007 Cryogenic vessels -- Large transportable vacuum-insulated vessels
Part 1: Design, fabrication, inspection and testing, Edition 1
ISO 21009-1:2008 Cryogenic vessels -- Static vacuum-insulated vessels
Part 1: Design, fabrication, inspection and tests, Edition 1
ISO 21010:2004 Cryogenic vessels -- Gas/materials compatibility, Edition 1
ISO 21011:2008 Cryogenic vessels -- Valves for cryogenic service, Edition 1
ISO 21012:2006 Cryogenic vessels – Hoses, Edition 1
ISO 21013-1:2008 Cryogenic vessels -- Pressure-relief accessories for cryogenic service
Part 1: Reclosable pressure-relief valves, Edition 1
ISO 21013-2:2007 Cryogenic vessels -- Pressure-relief accessories for cryogenic service
Part 2: Non-reclosable pressure-relief devices, Edition 1
ISO 21029-1:2004 Cryogenic vessels -- Transportable vacuum insulated vessels of not more
than 1 000 litres volume
Part 1: Design, fabrication, inspection and tests, Edition 1
ISO 24490:2005 Cryogenic vessels -- Pumps for cryogenic service, Edition 1
ISO/DIS 21013-4 Cryogenic vessels -- Pilot operated pressure relief devices
Part 4: Pressure-relief accessories for cryogenic service, Edition 1
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IEC 600796-10 specifies the requirements for the construction and testing of
oil-immersed electrical equipment, oil-immersed parts of electrical equipment and
Ex components in the type of protection oil immersion "o", intended for use in explosive
gas atmospheres.
Design, fabrication, inspection, examination and testing of
hydrogen transportation pipelines shall be in accordance with national or international
standards, such as ASME B31.3 and B31.8.
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Hazardous situations can result from the following causes:
8
failures or faults in the electrical equipment resulting in the possibility
of electric shock or electrical fire
failures or faults in control circuits (or components and devices associated
with those circuits)
disturbances or disruptions in power sources as well as failures or faults in the
power circuits
loss of continuity of circuits that depend upon sliding or rolling contacts
electrical disturbances e.g. electromagnetic, electrostatic either from outside the electrical
equipment or internally generated
release of stored energy resulting in e.g. electric shock that can cause injury
surface temperatures that can cause injury.
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
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
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


Design and installation
Type of wiring and methods of installation
Protective equipment
Electro Magnetic Compatibility (EMC)
Protection against direct contact
Protection against indirect contact
Protection against thermal effects
Protection against overcurrent
Protection against fault currents
Protection against overvoltage
Electrical grounding and potential equalization
Protection by earthing
Protection against lightning
Protection against overvoltages due to lightning and to switching surges
Protection measures to reduce failure of electrical and electronic systems
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Figure 110: Example for grounding of metallic components and piping, Source: TRBS 2153
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Onboard applications are mobile or transportable units e.g. a vehicle and/or a
mobile or transportable equipment, which contains an electrical installation.
 Power supply
 Protection measures
 Protection against electric shock
• Protection by automatic disconnection of power supply
• Potective-equipotential bonding
• TN system
•
IT system
 Electrical separation
 Residual Current Devices (RCDs)
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IEC 60364-1:2001 Electrical installations of buildings
Part 1: Fundamental principles, assessment of general characteristics, definitions
IEC 60934:2007 Circuit-breakers for equipment (CBE)
IEC 62305-1:2006 Protection against lightning – Part 1: General principles
IEC 60950-1:2005 Information technology equipment – Safety
Part 1: General requirements
IEC 61000:2005 Electromagnetic compatibility
IEC 60364-4-41:2005 Low-voltage electrical installations
Part 4-41: Protection for safety – Protection against electric shock
IEC 60529:2001 Degrees of protection provided by enclosures (IP code)
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IEC 60364-1:2001 Electrical installations of buildings
Part 1: Fundamental principles, assessment of general characteristics, definitions
IEC 60934:2007 Circuit-breakers for equipment (CBE)
IEC 62305-1:2006 Protection against lightning – Part 1: General principles
IEC 60950-1:2005 Information technology equipment – Safety
Part 1: General requirements
IEC 61000:2005 Electromagnetic compatibility
IEC 60364-4-41:2005 Low-voltage electrical installations
Part 4-41: Protection for safety – Protection against electric shock
IEC 60529:2001 Degrees of protection provided by enclosures (IP code)
IEC 61032:1997 Protection of persons and equipment by enclosures – Probes for verification
This International Standard specifies details and dimensions of test probes intended to verify
the protection provided by enclosures with regard to:
– Protection of persons against access to hazardous parts inside the enclosure;
– Protection of the equipment inside the enclosure against ingress of solid foreign objects.
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IEC 60730-1: 2010 Automatic electrical controls for household and similar use –
Part 1: General requirements
(In general, this International Standard applies to automatic electrical controls for use in, on,
or in association with equipment for household and similar use, including controls for heating,
air-conditioning and similar applications. The equipment may use electricity, gas, oil, solid fuel,
solar thermal energy, etc., or a combination thereof.
This International Standard applies to the inherent safety; to the operating values, operating times,
and operating sequences where such are associated with equipment safety, and to the testing of
automatic electrical control devices used in, or in association with, household or similar equipment.)
IEC 60204-1:2005 Safety of machinery – Electrical equipment of machines
Part 1: General requirements
IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems
Part 1: Principles, requirements and tests
TRBS 2153 Prevention of ignition hazards by electrostatic charge
IEC 60634-7-717: Low-voltage electrical installations
Part 7-717: Requirements for special installations or locations - Mobile or transportable units
IEC 62282-3-100 Stationary fuel cell power systems – safety Clause 4.7
IEC 62282-5-1 Stationary fuel cell power systems – safety Clause 4.7
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Table 37: Maintenance operations
Maintenance requirements
General
Visual inspection of the site, including fences, Yearly, and after
walls, doors, gates, etc. in order to check the each emergency
condition of all components.
response
15
Equipement
Frequence
Record the visual inspection and any
equipment non-compliance.
Fire-fighting
Accessibility, presence and conformity
and emergency
equipments
Every 6 months,
and after each
emergency
response
Plumbing,
piping and
fittings
Yearly
Visual inspection of plumbing, piping and
fittings, in order to detect any anomaly.
Record the visual inspection and any leakage
or anomaly.
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Compressor
units
Visual inspection of the compressor units.
Yearly
Check that the pressures and the oil (or other
librucating liquids) levels of the compressor comply
with the specifications.
Record the inspection as well as the pressures and
the oil (or other librucating liquids) levels of the
compressor.
Check that the compressor stops functioning at the
specified outlet pressure.
Record this inspection.
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Means of connection
of transportable
vessels – screwed
connections
Visually inspect for damage.
Connecting means of
transportable vessels
– quick-release
couplings
Visually inspect for damage.
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Verify leak tightness (annually).
Yearly and during each
connection
Record this inspection.
Verify leaktightness (annually).
Follow the integrator’s
instructions
Record this inspection.
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Emergency
shutdown system
and isolation
valves
Check that the emergency shutdown
Yearly
systems and the isolation valves are in good
conditions.
Process control
safety function
Check that it is in good condition.
Ventilation
Check that the ventilation system (air inlet
and outlet systems, audio and visual
warnings) is in good conditions.
Record this inspection.
Record this inspection.
Record this inspection.
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Yearly
Yearly
If the ventilation
system is located
outdoors: every
three months
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Hydrogen
detection
system
Check that the hydrogen detection system
(including audio and visual warnings) is in
good conditions.
Yearly
Follow manufacturer’s
instructions
Record this inspection.
Safety
control and
command
systems
Check the settings values and check that the Yearly
system is in good conditions.
Follow manufacturer’s
Record this inspection and the values.
instructions
Leak tests
Perform leak tests on all the piping and on all Yearly
the installation in order to check that there is Follow manufacturer’s
no leak.
instructions
Record this inspection and any detected leak.
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Stationary
hydrogen storage
pressure vessels
Periodic requalification
Safety devices
Visual inspection of all safety devices.
According to the
applicable
technical
requirements
Yearly
20
Record any requalification or any retest
Check that all labels or markings are where
there should be.
Record this inspection.
Safety valves
Tare again.
Every 5 years
Record this tare.
Component having Check that the lifetime of the component will Yearly
a limited lifetime
not be over before the next inspection.
(e.g. hoses,
Record this inspection and the replacement of
composite pressure any component whose lifetime is over.
vessels)
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IEC 60079-29-2 Edition 1.0 (2007-08-16)
Explosive atmospheres
Part 29-2: Gas detectors
Selection, installation, use and maintenance of detectors for flammable gases and oxygen
IEC 60079-10-1 Explosive atmospheres
Part 10-1: Classification of areas - Explosive gas atmospheres, Edition 2
To prepare and maintain international standards relating to the use of equipment including area classification,
the selection and installation, inspection and maintenance, repair, overhaul and reclamation of equipment
where there is a hazard due to the possible presence of explosive atmospheres of gases, vapours,
mists or combustible dusts.
IEC 60079-29-2 Explosive atmospheres
Part 29-2: Gas detectors - Selection, installation, use and maintenance of detectors for flammable
gases and oxygen, Edition 2
ISO 20421-2:2005 Cryogenic vessels -- Large transportable vacuum-insulated vessels
Part 2: Operational requirements, Edition 1
ISO 21009-2:2006 Cryogenic vessels -- Static vacuum insulated vessels
Part 2: Operational requirements, Edition 1
ISO 21029-2:2004 Cryogenic vessels -- Transportable vacuum insulated vessels of not more than
1 000 litres volume
Part 2: Operational requirements, Edition 1
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