This document defines the construction, safety, and performance requirements of modular or factory-matched hydrogen gas generation appliances, herein referred to as hydrogen generators, using electrochemical reactions to electrolyse water to produce hydrogen. This document is applicable to hydrogen generators that use the following types of ion transport medium: This document is applicable to hydrogen generators intended for industrial and commercial uses, and indoor and outdoor residential use in sheltered areas, such as car-ports, garages, utility rooms and similar areas of a residence. Hydrogen generators that can also be used to generate electricity, such as reversible fuel cells, are excluded from the scope of this document. Residential hydrogen generators that also supply oxygen as a product are excluded from the scope of this document.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 Operating conditions
4.2 Risk management
4.3 Mechanical equipment
4.4 Electrical equipment, wiring and ventilation
4.5 Control systems
4.6 Ion transport medium
4.7 Protection of service personnel
5 Test methods
5.1 General
5.2 Type (qualification) tests
5.3 Routine tests
6 Marking and labelling
6.1 General requirements
6.2 Hydrogen generator marking
6.3 Marking of components
6.4 Warning signs
7 Documentation accompanying the hydrogen generator
7.1 General
7.2 Hydrogen generator ratings
7.3 Hydrogen generator installation
7.4 Hydrogen generator operation
7.5 Hydrogen generator maintenance
Annex A Hydrogen-assisted corrosion (informative)
Annex B Flammability limits of hydrogen (informative)
IEC 31010:2019 Risk management — Risk assessment techniques
IEC 60068-2-18:2017 Environmental testing — Part 2-18: Tests — Test R and guidance: Water
IEC 60079 (all parts) Explosive atmospheres
IEC 31010:2019 Risk management — Risk assessment techniques
IEC 60068-2-18:2017 Environmental testing — Part 2-18: Tests — Test R and guidance: Water
IEC 60079 (all parts) Explosive atmospheres
IEC 60204-1:2016 Safety of machinery — Electrical equipment of machines — Part 1: General requirements
IEC 60335-1:2010 Household and similar electrical appliances — Safety — Part 1: General requirements
IEC 60335-2-41 Household and similar electrical appliances — Safety — Part 2-41: Particular requirements for pumps
IEC 60335-2-51 Household and similar electrical appliances — Safety — Part 2-51: Particular requirements for stationary circulation pumps for heating and service water installations
IEC 60335-2-80 Household and similar electrical appliances — Safety — Part 2-80: Particular requirements for fans
IEC 60364-4-41 Low voltage electrical installations — Part 4-41: Protection for safety — Protection against electric shock
IEC 60364-4-43 Low-voltage electrical installations — Part 4-43: Protection for safety — Protection against overcurrent
IEC 60445 Basic and safety principles for man-machine interface, marking and identification — Identification of equipment terminals, conductor terminations and conductors
IEC 60529 Degrees of protection provided by enclosures (IP Codes)
IEC 60534 (all parts) Industrial-process control valves
IEC 60695-11-10 Fire hazard testing — Part 11-10: Test flames — 50 W horizontal and vertical flame test methods
IEC 60695-11-20 Fire hazard testing — Part 11-20: Test flames — 500 W Flame test methods
IEC 60730-1:2013 Automatic electrical controls for household and similar use — Part 1: General requirements
IEC 60947-1 Low-voltage switchgear and controlgear — Part 1: General rules
IEC 60950-1:2005 Information technology equipment — Safety — Part 1: General requirements
IEC 60998-2-2 Connecting devices for low-voltage circuits for household and similar purposes — Part 2-2: Particular requirements for connecting devices as separate entities with screwless-type clamping units
IEC 60999-1 Connecting devices — Electrical copper conductors — Safety requirements for screw-type and screwless-type clamping units — Part 1: General requirements and particular requirements for clamping units for conductors from 0,2 mm2 up to 35 mm2 (included)
IEC 60999-2 Connecting devices — Electrical copper conductors — Safety requirements for screw-type and screwless-type clamping units — Part 2: Particular requirements for clamping units for conductors above 35 mm2 up to 300 mm2 (included)
IEC 61010-1:2010 Safety requirements for electrical equipment for measurement, control, and laboratory use — Part 1: General requirements
IEC 61069-7 Industrial-process measurement and control — Evaluation of system properties for the purpose of system assessment — Part 7: Assessment of system safety
IEC 61131-1 Programmable controllers — Part 1: General information
IEC 61131-2 Programmable controllers — Part 2: Equipment requirements and tests
IEC 61508 Functional safety of electrical/electronic/programmable electronic safety-related systems
IEC 61511-1 Functional safety: Safety instrumented systems for the process industry sector — Part 1: Framework, definitions, system, hardware and software requirements
IEC 61672-1 Electroacoustics — Sound level meters — Part 1: Specifications
IEC 61672-2 Electroacoustics — Sound level meters — Part 2: Pattern evaluation tests
ISO 10286 Gas cylinders — Terminology
ISO 10790 Measurement of fluid flow in closed conduits — Guidance to the selection, installation and use of Coriolis flowmeters (mass flow, density and volume flow measurements)
ISO 11119-1 Gas cylinders — Refillable composite gas cylinders and tubes — Design, construction and testing — Part 1: Hoop wrapped fibre reinforced composite gas cylinders and tubes up to 450 l
ISO 11119-2 Gas cylinders — Refillable composite gas cylinders and tubes — Design, construction and testing — Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with load-sharing metal liners
ISO 11119-3 Gas cylinders — Refillable composite gas cylinders and tubes — Design, construction and testing — Part 3: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450L with non-load-sharing metallic or non-metallic liners
ISO 1182 Reaction to fire tests for products — Non-combustibility test
ISO 12100 Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 12499 Industrial fans — Mechanical safety of fans — Guarding
ISO 13709 Centrifugal pumps for petroleum, petrochemical and natural gas industries
ISO 13850 Safety of machinery — Emergency stop function — Principles for design
ISO 13854 Safety of machinery — Minimum gaps to avoid crushing of parts of the human body
ISO 13857 Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs
ISO 14511 Measurement of fluid flow in closed conduits — Thermal mass flowmeters
ISO 14847 Rotary positive displacement pumps — Technical requirements
ISO 15534-1 Ergonomic design for the safety of machinery — Part 1: Principles for determining the dimensions required for openings for whole-body access into machinery
ISO 15534-2 Ergonomic design for the safety of machinery — Part 2: Principles for determining the dimensions required for access openings
ISO 15649 Petroleum and natural gas industries — Piping
ISO 16111 Transportable gas storage devices — Hydrogen absorbed in reversible metal hydride
ISO 16528-1 Boilers and pressure vessels — Part 1: Performance requirements
ISO 17398 Safety colours and safety signs — Classification, performance and durability of safety signs
ISO 26142 Hydrogen detection apparatus — Stationary applications
ISO 3746 Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane
ISO 3864-2 Graphical symbols — Safety colours and safety signs — Part 2: Design principles for product safety labels
ISO 4126-1 Safety devices for protection against excessive pressure — Part 1: Safety valves
ISO 4126-2 Safety devices for protection against excessive pressure — Part 2: Bursting disc safety devices
ISO 4126-6 Safety devices for protection against excessive pressure — Part 6: Application, selection and installation of bursting disc safety devices
ISO 7010 Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 7866 Gas cylinders — Refillable seamless aluminium alloy gas cylinders — Design, construction and testing
ISO 9300 Measurement of gas flow by means of critical flow Venturi nozzles
ISO 9614-1 Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points
ISO 9809-1 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
ISO 9951 Measurement of gas flow in closed conduits — Turbine meters