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  • NHKMC1 Fire-resistant Busway with 4P or 5P and Rated Current 250A~6300A

    NHKMC1 Fire-resistant Busway with 4P or 5P and Rated Current 250A~6300A

    The refractory busway is suitable for three-phase four-wire and three-phase five-wire supply and distribution systems with AC 50~60Hz, voltage 660V and below, rated current 250~3150A with high fire protection requirements. The product is made of insulating material with high temperature resistance above 500℃, while the heat insulation layer is made of heat insulation and temperature resistant material above 1000℃, and the shell is made of steel. The fire-resistant busway has passed the 950°C, 90-minute to 3-hour high-temperature fire test, as well as the full-load current-carrying test and the waterproof test, and the full set of standard tests for busways, so the selection of this busway can ensure the current-carrying capacity and the stability of power supply for fire-fighting equipment. This series of products can maintain power supply for a certain period of time in case of fire to ensure enough time to start fire-fighting equipment, smoke exhaust and ventilation, and evacuate people.