How to calculate the voltage drop of 4 Core 50 Sqmm SWA
cable for a distance of 350 mtrs and what can be the
maximum load connected to it?
Answers were Sorted based on User's Feedback
Answer / sudhakar g
According to Polycab standard the current carrying for 4C 50Sqmm STEEL WIRE ARMORED cable is 133A(ground) and 142A(air)
The formula for voltage drop is
Vd=(MV*Id*L)/1000
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Answer / avd
Voltage drop in cable is a function of load current. It is
simply V=IRL. where V= voltage drop in cable, I= Load
current, R = Resistance/meter length, L= length of cable in
meters.
For maximum current carrying capacity of cable please see
menufacturers catalogue.
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hi all my name is ganeshkumar from Hyderabad dee According to Poly cab standard the current carrying for 4C 50Sqmm STEEL WIRE ARMORED cable is 133A(ground) and 142A(air) ok use diversity factor demand foctor, all of i know use 80% load use in ex: 142*0.80=113 amps maximum load in air in ground 133*.80=106.4 amps maximum load
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