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Wiring Riddle No.4 – Current rating of bus bar and cable

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  • #564

      For the same sqmm area, the current rating of the bus bar /ayfy cable is different. The current rating of bus bar is lower. why?
      For the same sqmm area, the current rating of the bus bar /ayfy cable is different. The current rating of bus bar is lower. why?

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    • #2133
      Hamid

        It is related to difference between maximum conductor operating temperature of cable and bus bars. The operating temperature of the bus conductors is restricted to 85-90

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