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Question
How to calculate the current carrying capacity of 
electrical cables
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 11
for 50KW motor
p=50
I = 50x 1.2 (thumb rule)
=60 A

Size of cable : 60x0.2(thumb rule)
: 12

so min size of cable req. 12 sqmm.
 
Is This Answer Correct ?    6 Yes 5 No
At
 
Answer
# 12
BY SIMPLE
CURRENT DENSITY = LOAD CURRENT/AREA

FOR COPPER OR ALUMINIUM CURRENT DENSITY CAN BE VARIED ACCORDING TO OUR DESIGN.FOR GOOD DESIGN CURRENT DENSITY SHOULD BE REDUCED WHICH HELPS IN EASY TEMPERATURE DISSIPATION.

CONSIDER CURRENT DENSITY OF 0.6A/SQ.MM FOR cu OR AL
LOAD CURRENT-100A
THEN
0.6=100/AREA
AREA=166 SQ.MM

MEAN THAT 166 SQ.MM REQUIRED TO CONDUCT 100A.
 
Is This Answer Correct ?    2 Yes 7 No
Manojkumar
 
Answer
# 13
from the size of the cable we can find particular sq mm we can
send some current
 
Is This Answer Correct ?    111 Yes 130 No
Karthik Raman.b
 
Answer
# 14
p=1.732vicos8 
Is This Answer Correct ?    15 Yes 48 No
Jitendra Chauhan
 

 
 
 
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