downundersparky
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- May 27, 2012
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Ok fellas thanks for the replys before, but can you check/help with this.
t = Ksq X Ssq/Isq ?????
t = 111 X 111 X 300 X 300/7143 X 7143 = 21.80 sec
S = 300mm consumer mains
t = 111 X 111 X 50 X 50/5523 X 5523 = 1.08 sec
Is this correct or near ???? t = the time it will take before the cable melts under fault current ????.
headbangheadbangheadbangheadbangheadbangheadbangheadbangheadbangheadbang
Thanks fellas
t = Ksq X Ssq/Isq ?????
t = 111 X 111 X 300 X 300/7143 X 7143 = 21.80 sec
S = 300mm consumer mains
t = 111 X 111 X 50 X 50/5523 X 5523 = 1.08 sec
Is this correct or near ???? t = the time it will take before the cable melts under fault current ????.
headbangheadbangheadbangheadbangheadbangheadbangheadbangheadbangheadbang
Thanks fellas