do you know calculations?

thanks

Generally method is ;

LM = Tm/fW

where
LM = pulling length, feet (straight section)
TM = maximum tension, lb.
W = weight of cable per foot, lb.
f = coefficient of friction (usually 0.5)

for conductor


SINGLE CONDUCTOR:
T = S * A (pounds)

Where:
T = conductor tension, lbs
S = conductor stress, lbs/cmil (Table 1)
A = conductor area, cmil (Table 2)

MULTIPLE CONDUCTORS:

T = N * S * A (pounds) for 3 or less conductors
T = (0.8 ) * N * S * A (pounds) for more than 3 conductors

Where:
N = number of conductors