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The ENF fire-resistant busduct system, in conformity to GB7251.6，GA/ T537，IEC61439-6 and BS6387, with rated operating voltage of lower than 1000V,rated operating current of 400-5000A, operating frequency of 50-60 Hz, level of protection up to IP66, is applicable to the following power supply and distribution system: three-phase three-wire, three-phase four-wire and three-phase five-wire, etc. In addition, the configuration of multiple conductor specification is provided, such as standard cooper conductor, 50%-200% neutral line, etc., to meet customers’ requirements for higher electrical, fire-resistance and metal-structure performance.
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