GB/T 31036-2014 English PDF (GBT31036-2014)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB/T 31036-2014
Historical versions: GB/T 31036-2014
Preview True-PDF (Reload/Scroll if blank)

GB/T 31036-2014: Proton exchange membrane fuel cell backup power system -- Safety
GB/T 31036-2014
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.070
K 82
GB 31036-2014
Proton exchange membrane fuel cell backup power system -
Safety
ISSUED ON: DECEMBER 05, 2014
IMPLEMENTED ON: JULY 01, 2015
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
FOREWORD ... 3 
1 Scope ... 4 
2 Normative references ... 6 
3 Terms and definitions... 7 
4 Safety requirements and protective measures ... 11 
5 Type tests ... 22 
6 Routine tests ... 31 
7 Marking, labeling and packaging ... 32 
Appendix A (Informative) Important hazards, hazardous situations and events involved
in this Standard ... 33 
Proton exchange membrane fuel cell backup power system -
Safety
1 Scope
This Standard specifies terms and definitions, safety requirements and protective
measures, type tests, routine tests, and marking, labeling and packaging related to the
proton exchange membrane fuel cell backup power system.
This Standard applies to the proton exchange membrane fuel cell backup power system
(hereinafter referred to as PEMFC backup power system), including:
-- PEMFC backup power system providing AC or DC power;
-- PEMFC backup power system using hydrogen and air as reactant gases.
Safety requirements for the installation site are not specified in this Standard.
Figure 1 is a schematic diagram of the boundary of a typical PEMFC backup power
system.
The PEMFC backup power system applicable to this Standard shall constitute a
complete system. In order to achieve the set function, the system shall be composed of
some or all of the following components:
-- Fuel storage and supply system: a system that is used for storing fuel used by the
PEMFC backup power system and providing fuel for the PEMFC backup power
system;
-- Air supply system: a system that is used for metering, conditioning, processing
and pressurizing the air required by the PEMFC backup power system;
-- Thermal management system: a system that provides cooling, heat dissipation,
and/or heating functions to maintain thermal balance within the PEMFC backup
power system;
-- Water treatment systems: a system that treats and purifies the recovered or added
water for use by the PEMFC backup power system;
-- Electrical output conditioning system: a system that controls or converts the
generated electrical energy to meet the electrical demand within the
manufacturer's design range;
-- Automatic control system: a system consisting of sensors, actuators, valves,
switches, logic elements and control boards, etc., which is used for maintaining
the parameters of the PEMFC backup power system, without manual intervention,
within the range set by the manufacturer;
-- Ventilation system: a system that realizes the air exchange inside and outside the
cabinet of the PEMFC backup power system by means of forced or natural
ventilation;
-- Fuel cell module: a module consisting of one or more fuel cell stacks, electrical
connection devices for delivering electrical energy to the stacks, and monitoring
devices, which converts chemical energy into electrical energy and thermal
energy.
-- Auxiliary energy storage device: a rechargeable and dischargeable energy storage
device inside the system, which is used for assisting or supplementing the fuel
cell module to supply power to internal or external loads. (Optional)
This Standard applies to commercial, industrial and domestic PEMFC backup power
systems in non-hazardous (unclassified) areas around the equipment.
This Standard only considers dangerous situations that may cause harm to persons,
objects or the environment outside the PEMFC backup power system, and proposes
safety requirements for such dangerous situations, excluding the safety measures that
may be taken when the PEMFC backup power system itself may be damaged. The
prerequisites in this part are not intended to limit innovation. When materials, designs
or manufactures different from this part are used, they shall have the same or equivalent
safety and performance with those specified in this part.
concentration is lower than critical ratio of the low flammability limit (LFL) or
higher than the high flammability limit (UFL), it will not initiate combustion.
3.2
thermal stability
Stable temperature conditions, quasi-steady state. Read the temperature twice at an
interval of 15 minutes; in any state where the temperature change does not exceed 3 °C
or 1% of the absolute operating temperature, the temperature with the higher reading
shall prevail.
3.3
accessible areas
Under normal operating conditions, an area that meets one of the following factors:
a) It is accessible without the use of tools;
b) It is accessible after the operator is specially provided with an access method;
c) Whether or not the use of tools is required, the operator can be guided to access.
Note 1: Unless otherwise defined, the terms "access" and "accessibility" refer only to
the operator's access to the area in the above definition.
Note 2: Only maintenance personnel can enter the inaccessible area. When entering the
inaccessible area, the maintenance personnel may need to take appropriate
personal protection according to the maintenance manual.
3.4
combustible materials
Burnable materials.
Note: Combustible materials shall also be considered combustible after being
refractory treated, flame retardant treated or plastered.
3.5
design pressure
The maximum pressure value in all operating modes, including steady state and
transient state.
3.6
Cabinets for storing fuel tanks and their auxiliary equipment.
3.13
hazardous area
Areas where flammable gases are present or expected to be present in quantities
sufficient to require special precautions for the construction, installation and use of
electrical equipment.
Depending on the frequency and duration of the presence of flammable gases,
hazardous areas can be divided into:
Area 0: an area where flammable gases are continuously present or present for a long
time.
Area 1: an area where flammable gases may occur during normal operation.
Area 2: an area where flammable gas is unlikely to occur, and if it occurs, it occurs
occasionally and only for a short time during normal operation.
3.14
flue gas vent
A line that carries exhaust gas from a backup power system to the outside environment.
3.15
interlock
A control method that monitors whether the specified conditions are met or not and
ensures that the relevant control equipment performs safe actions.
3.16
state
3.16.1
cold state
The state where the fuel cell power generation system has neither energy input nor
energy output at ambient temperature.
[GB/T 28816-2012, Definition 3.110.1]
3.16.2
operational state
backup power system. Anti-vibration facilities can be installed to avoid the adverse
effects caused by vibration and impact (including those generated by the machine itself
and auxiliary equipment, as well as those generated by the physical environment). The
above adverse effects do not include the effects caused by seismic impact; if the
manufacturer believes that its products are suitable for use in seismic areas, it shall be
stated separately.
4.2.6 Transportation and storage temperature requirements
The PEMFC backup power systems shall be...