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sir,
how to select the cable size, what is the parameters use
ang what is the formulas use for this cable size
calculations. please tell me.
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Answer Posted / raul
cable size depends upon THE MOST ECONOMICAL CONDUCTOR SIZE
concept in which the size depends upon the max. dielectric
stress on the conductor..........i.e. g(max.)= 2V/dlogD/d,
where V=voltage, x= distance from the conductor centre,
D=sheath diameter, d=conductor diameter........by
differentiating above relation n equating to zero......we
get logD/d=1 i.e. d=D/2.718...........
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