636 



ELECTRICAL EQUIPMENT 



TABLE LIV 



CURRENT-CARRYING CAPACITY OF CABLES 

 (Continuous Rated Apparatus) 



CABLES IN MULTIPLE 



the top, we see that this case also involves all three operating 

 conditions and that the limit of the Z condition is a 4/0 cable, so 

 that it will be safe to use a 1/0 cable for our case. 



Suppose, on the other hand, that the current to be carried had 

 been 675 amperes. This would have come within the limit of the 

 Y condition and the required size of the cable would be 750,000 

 C.M 



