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GB/T 27748.1-2017 English PDF (GBT27748.1-2017)

GB/T 27748.1-2017 English PDF (GBT27748.1-2017)

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GB/T 27748.1-2017: Stationary fuel cell power systems -- Part 1: Safety

GB/T 27748.1-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.070
K 82
GB/T 27748.1-2017 / IEC 62282-3-100:2012
Replacing GB/T 27748.1-2011
Stationary fuel cell power systems - Part 1: Safety
(IEC 62282-3-100:2012, Fuel cell technologies -
Part 3-100: Stationary fuel cell power systems - Safety, IDT)
ISSUED ON: JULY 31, 2017
IMPLEMENTED ON: FEBRUARY 01, 2018
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 7
2 Normative references ... 8
3 Terms and definitions ... 11
4 Safety requirements and protective measures ... 19
5 Type tests ... 51
6 Routine tests ... 80
7 Marking, labelling and packaging ... 81
Annex A (Informative) Significant hazards, hazardous situations and events dealt with in this standard ... 91
Annex B (Informative) Carburization and material compatibility for hydrogen service ... 93
Annex NA (Informative) China’s documents which have a consistent
correspondence with the international documents normatively referenced in this Part ... 101
Bibliography ... 105
Foreword
GB/T 27748 "Stationary fuel cell power systems" is divided into the following 4 parts:
- Part 1: Safety;
- Part 2: Performance test methods;
- Part 3: Installation;
- Part 4: Performance test methods for small fuel cell power systems.
This Part is Part 1 of GB/T 27748.
This Part is drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 27748.1-2011 "Stationary fuel cell power system - Part 1: Safety". Compared with GB/T 27748.1-2011, the main technical changes are as follows:
- On the whole, reorganize the safety requirements part;
- The main modification is to put forward electrical safety requirements for internal components;
- Clarify a large number of requirements and test methods, especially
pressure leakage and strength tests;
- Expand the wind tests part;
- ADD condensate discharge and air leakage tests.
This Part, using translation method, is identical to IEC 62282-3-100:2012 "Fuel cell technologies - Part 3-100: Stationary fuel cell power systems - Safety". China’s documents which have a consistent correspondence with the
international documents normatively referenced in this Part are given in Annex NA.
This Part was proposed by China Electrical Equipment Industry Association. This Part shall be under the jurisdiction of National Technical Committee 342 on Fuel Cell and Flow Battery of Standardization Administration of China (SAC/TC 342).
Drafting organizations of this Part: Suzhou UL-CCIC Co., Ltd.; Machinery Stationary fuel cell power systems - Part 1: Safety
1 Scope
This Part of GB/T 27748 is the product safety standard. It applies to stationary packaged, self-contained fuel cell power systems or fuel cell power systems comprised of factory matched packages of integrated systems which generate electricity through electrochemical reactions.
This Part applies to systems
- intended for electrical connection to mains direct, or with a transfer switch, or to a standalone power distribution system;
- intended to provide AC or DC power;
- with or without the ability to recover useful heat;
- intended for operation on the following input fuels
a) natural gas and other methane rich gases derived from renewable
(biomass) or fossil fuel sources, for example, landfill gas, digester gas, coal mine gas;
b) fuels derived from oil refining, for example, diesel, gasoline, kerosene, liquefied petroleum gases such as propane and butane;
c) alcohols, esters, ethers, aldehydes, ketones, Fischer-Tropsch liquids and other suitable hydrogen-rich organic compounds derived from renewable
(biomass) or fossil fuel sources, for example, methanol, ethanol, di-
methyl ether, biodiesel;
d) hydrogen, gaseous mixtures containing hydrogen gas, for example,
synthesis gas, town gas.
This Part does not cover:
- micro fuel cell power systems;
- portable fuel cell power systems;
- propulsion fuel cell power systems.
Note: For special application such as “marine auxiliary power”, additional requirements may be given by the relevant marine ship register standard.
This Part is applicable to stationary fuel cell power systems intended for indoor and outdoor commercial, industrial and residential use in non-hazardous (unclassified) areas.
This standard contemplates all significant hazards, hazardous situations and events, with the exception of those associated with environmental compatibility (installation conditions), relevant to fuel cell power systems, when they are used as intended and under the conditions foreseen by the manufacturer.
This standard deals with conditions that can yield hazards on the one hand to persons, and on the other to damage outside the fuel cell system only.
Protection against damage to the fuel cell system internals is not addressed in this standard, provided it does not lead to hazards outside the fuel cell system. The requirements of this standard are not intended to constrain innovation. When considering fuels, materials, designs or constructions not specifically dealt with in this standard, these alternatives shall be evaluated as to their ability to yield levels of safety and performance equivalent to those prescribed by this standard.
2 Normative references
The following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document.
GB/T 4208-1993 Degrees of protection provided by enclosure (IP code) (IEC 60529:1989, IDT)
IEC 60079-0 Explosive atmospheres - Part 0: Equipment - General
requirements
IEC 60079-2 Explosive atmospheres - Part 2: Equipment protection by
pressurized enclosure “p”
IEC 60079-10 Explosive atmospheres - Part 10: Classification of areas
IEC 60079-29-1 Explosive atmospheres - Part 29-1: Gas detectors -
Performance requirements of detectors for flammable gases
IEC 60079-30-1 Explosive atmospheres - Part 30-1: Electrical resistance trace heating - General and testing requirements
IEC 60204-1 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 60335-2-51 Household and similar electrical appliances - Safety - Part 2-51: Particular requirements for stationary circulation pumps for heating and service water installations
IEC 60417 Graphical symbols for use on equipment
IEC 60730-1 Automatic electrical controls for household and similar use - Part 1: General requirements
IEC 60730-2-5 Automatic electrical controls for household and similar use - Part 2-5: Particular requirements for automatic electrical burner control systems
IEC 60730-2-6 Automatic electrical controls for household and similar use - Part 2-6: Particular requirements for automatic electrical pressure sensing controls including mechanical requirements
IEC 60730-2-9 Automatic electrical controls for household and similar use - Part 2-9: Particular requirements for temperature sensing controls
IEC 60950-1 Information technology equipment - Safety - Part 1: General requirements
IEC 61000-3-2 Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic currents emissions (equipment input current ≤16 A per phase) IEC 61000-3-3 Electromagnetic compatibility (EMC) - Part 3-3: Limits -
Limitation of voltage changes, voltage fluctuations and flicker in public low- voltage supply systems, for equipment with rated current ≤16 A per phase and not subject to conditional connection
IEC 61000-3-4 Electromagnetic compatibility (EMC) - Part 3-4: Limits -
Limitation of emission of harmonic currents in low-voltage power supply systems for equipment with rated current greater than 16 A
IEC 61000-3-5 Electromagnetic compatibility (EMC) - Part 3-5: Limits -
Limitation of voltage fluctuations and flicker in low-voltage power supply systems for equipment with rated current greater than 75 A
IEC 61000-3-11 Electromagnetic Compatibility (EMC) - Part 3-11: Limits - Limitation of voltage changes voltage fluctuations and flicker in public low- voltage supply systems - Equipment with rated current ≤75 A and subject to conditional connection
ISO 10442 Petroleum, chemical and gas service industries - Packaged,
integrally geared centrifugal air compressors
ISO 12499 Industrial fans - Mechanical safety of fans - Guarding
ISO 13631 Petroleum and natural gas industries - Packaged reciprocating gas compressors
ISO 13707 Petroleum and natural gas industries - Reciprocating
compressors
ISO 13709 Centrifugal pumps for petroleum, petrochemical and natural gas industries
ISO 13849-1 Safety of machinery - Safety related parts of control systems - Part 1: General principles for design
ISO 13850 Safety of machinery - Emergency stop - Principles for design
ISO 14847 Rotary positive displacement pumps - Technical requirements
ISO 15649 Petroleum and natural gas industries - Piping
ISO 16111 Transportable gas storage devices - Hydrogen absorbed in
reversible metal hydride
ISO 23550 Safety and control devices for gas burners and gas-burning
appliances - General requirements
ISO 23551-1 Safety and control devices for gas burners and gas-burning
appliances - Particular requirements - Part 1: Automatic valves
ISO 23553-1 Safety and control devices for oil burners and oil-burning
appliances - Particular requirements - Part 1: Shut-off devices for oil burners ISO 26142 Hydrogen detection apparatus - Stationary applications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. 3.1
Accessible
Area to which, under normal operating conditions, one of the following applies: a) access can be gained without the use of a tool;

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