IEC 62282-3-400 Stationary fuel cell power systems - Small stationary fuel cell power systems with combined heat and power output

This standard applies to small stationary fuel cell power systems serving as a heating appliance providing both electrical power and useful heat with or without a peak load heating device. This standard applies to fuel cell power systems that are intended to be permanently connected to the electrical system of the customer (end user). Connection to the mains directly (parallel operation) is also within the scope of this standard NOTE: Parallel operation is subject to the permission of the local electric power supply utility This standard is limited to gas and liquid fuelled fuel cell power systems that have a heat input based on net caloric value of less than or equal to 70 kW. For some regional applications the output electric power is limited. SPECIFIC LIMITATIONS WILL BE GIVEN IN THE ANNEXES FOR INDIVIDUAL COUNTRIES. This standard applies to systems intended for operation on the following supplied input fuels: a) natural gas and other methane rich gases such as city gas; b) fuels derived from oil refining (kerosene, liquefied petroleum gases, propane, and butane); c) alcohols, (methanol, ethanol); d) hydrogen The following points also apply: · The heat transfer fluid (heat output) shall be water or a mixture of water and additives to prevent corrosion and to prevent freezing. · The heat transfer fluid circuit (heat output) can be designed for open or sealed operation. · The maximum temperature of the heat transfer fluid (heat output) shall not exceed the regional limits shown in the regional annexes. · The maximum pressure of the heat transfer fluid (heat output) circuit shall not exceed the regional limits shown in the regional annexes. · The maximum pressure of the domestic water circuit, if installed, shall not exceed the regional limits shown in the regional annexes. This standard applies to systems with either condensing or non-condensing conditions in the exhaust gas. Different combustion air / flue duct circuit configurations are accommodated. See regional annexes for regional restrictions. This standard applies to both indoor and outdoor installations. This standard applies to systems with or without integrated batteries. This standard applies to Type Testing only. This standard specifies the requirements for construction, safety, installation, fitness for purpose, rational use of energy, marking, and performance measurement of these appliances