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    suniljayarajan's Avatar
    suniljayarajan Posts: 10, Reputation: 1
    New Member
    		  
    #1

    Mar 30, 2009, 12:23 AM
    Busbar According to AMPS
    PLease tell me the BUSbar size according to the current rating

    Also the density of rigid and flexible Copper BUSBARS
    sathe1963's Avatar
    sathe1963 Posts: 97, Reputation: 4
    Junior Member
    		  
    #2

    Apr 17, 2009, 09:46 AM
    Dear sunil,

    For rigid bus bars when laid open in air; normal / rated current density of the material is considered. Another one factor derates the bus bar selection is the skin effect. You must be aware that normally, currnt flows through outer most area / surface of a conductor and density at center is less due to cross magnetising effect.

    Flexible copper conductors i.e. Cables have got derating factors: Ambeient temperature, grouping of cables, no. Of tiers of cable racks etc.

    Regards.
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