Proton exchange membrane fuel cell backup power system - Safety
1 Scope
This standard specifies the terms and definitions, safety requirements and protective measures, type tests, routine tests, identification, labels and packaging related to the proton exchange membrane fuel cell backup power system.
This standard is applicable to proton exchange membrane fuel cell backup power system (hereinafter referred to as PEMFC backup power system), including
——PEMFC backup power system providing alternating current or direct current;
——PEMFC backup power system using hydrogen and air as reaction gases.
Safety requirements for installation site are not specified in this standard.
Figure1 is a boundary diagram of a typical PEMFC backup power system.
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PEMFC backup power system to which this standard is applicable shall constitute a complete system. The system shall be composed of some or all of the following components to achieve the set function:
——Fuel storage and supply system: a system for storing fuel used by PEMFC backup power system and providing fuel for PEMFC backup power system;
——Air supply system: a system for metering, regulating, treating and pressurizing air required by PEMFC backup power system;
——Heat management system: a system that provides cooling, heat dissipation and/or heating functions to maintain the heat balance in the PEMFC backup power system;
——Water treatment system: a system that treats the recovered or added water for use in the PEMFC backup power system;
——Electric output regulating system: a system that controls or converts the generated electric energy and is able to meet the electricity demand within the manufacturer's design range;
——Automatic control system: a system that consists of sensors, actuators, valves, switches, logic elements and control panel and is used to maintain the parameters of PEMFC backup power system within the range set by the manufacturer without the need of manual intervention;
——Ventilation system: a system that exchanges air inside and outside the cabinet of the PEMFC backup power system by virtue of a forced or natural ventilation method;
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Safety requirements and protective measures
5 Type tests
6 Routine tests
7 Identification, labels and packaging
Annex A (Informative) Significant hazards, hazardous situation and events involved in this standard
