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Can anybody tell the formula to calculate temparature rise in the cable with respect to current?



Can anybody tell the formula to calculate temparature rise in the cable with respect to current?..

Answer / 7anoter4

The temperature rise in a conductor of a cable depends on
lot of factors as-for instance-:
1) The current supply way :continuous, intermittent, short-
time.
2) the cable ambient medium: air[free open, conduit, cable
tray], underground[direct, in conduit or in duct]
3) number of cable and distance between them
4) current frequency d.c.,50 or 60 Hz[ conductor resistance
depends on frequency]
5) other source of heat in vicinity-hot pipes, sunshine or
other.

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