Answer / kuttivenu

Based on the Total load & Votage drop

Answer / er. ankush miglani 9718151073

for
a. cu cable: 1 sqmm=5amp
b. al cable: 1sqmm=1.5amp

Answer / riyadh

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

Answer / soumendasbiswas

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

Answer / pavan

It depends on the total load and voltage

Answer / robins

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)

Answer / azhar

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

Answer / patson

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

Answer / kartick bango

Basically cable size is calculated depend Load & lenth. But
so many Place & area are also depend by temprature & low
Voltage for example Server Room

Answer / bharat

Total current based on the peak load(total connected .

should dc supply will give the transformer to build up the voltage level

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