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Question
how to calculate cable size by amp
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Based on the Total load & Votage drop 
Is This Answer Correct ?    130 Yes 20 No
Kuttivenu
 
Answer
# 2
for
a. cu cable: 1 sqmm=5amp
b. al cable: 1sqmm=1.5amp
 
Is This Answer Correct ?    109 Yes 38 No
Er. Ankush Miglani 9718151073
 
 
 
Answer
# 3
how we calculate for 25 amps Al cable given example

from ur point of view 16 sq.mm Al cable is enough for the
25 Amps
 
Is This Answer Correct ?    62 Yes 22 No
Riyadh
 
Answer
# 4
Fist Calculate the Full load current..then assume some
derating factor...nd evaluate that current..then check that
current with ny reputed cable makers manual(Havells,Pollycab)
to get the actual cable size
 
Is This Answer Correct ?    46 Yes 13 No
Soumendasbiswas
 
Answer
# 5
It depends on the total load and voltage 
Is This Answer Correct ?    29 Yes 5 No
Pavan
 
Answer
# 6
Cable calculation is based on the following factors:
1.Total current based on the peak load(total connected .
2.Cable length
3.Type of cable using(get from manual of cable manufactures)
4.Ambient temperature(normally 28 degrees)
 
Is This Answer Correct ?    26 Yes 5 No
Robins
 
Answer
# 7
cable size is calculated depending up on load ..for example
1 kw load takes 1.8 amps current..if the load is 5kw..than
9amp is the current for amp current the selection cable size
can be opted on the basis of manufature detial like
havells,polly cab..have the range of cable for certain
amount of current we have to selected the cable size on the
basis of manufacture range sheet
 
Is This Answer Correct ?    26 Yes 10 No
Azhar
 
Answer
# 8
Another factor in dxeciding on a cable size is where it
will be laid i.e in air, in soil, in ducts, on cable
containment ect
 
Is This Answer Correct ?    15 Yes 3 No
Patson
 
Answer
# 9
Basically cable size is calculated depend Load & lenth. But
so many Place & area are also depend by temprature & low
Voltage for example Server Room
 
Is This Answer Correct ?    9 Yes 0 No
Kartick Bango
 
Answer
# 10
Total current based on the peak load(total connected . 
Is This Answer Correct ?    12 Yes 4 No
Bharat
 

 
 
 
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