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formula for cable size calculation for current?
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Answer / govardhana rao.p
Calculations are same as above but for 50A load
We can use the bellow cables
Aluminium: 50 x 3.5 Core
Cu : 16 x 4 Core
| Is This Answer Correct ? | 115 Yes | 61 No |
Answer / sabu
in case 50amps 230v single phase load we can use 16mm aluminium and 10mm copper
| Is This Answer Correct ? | 29 Yes | 6 No |
Answer / zafar
the answer is not correct the correct figure is 25mmsq
| Is This Answer Correct ? | 37 Yes | 19 No |
Answer / bipin naik
The current will be 27 A for single phase supply(230v)
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / engr.muhammad younas khan
SINGLE PHASE FORMULA FOR CABLE SIZING.
REQUIRED DATA:-
I :- AMPERES
L :- LENGTH OF CABLE.
K :- CONDUCTIVITY OF COPPER(58)
:- CONDUCTIVITY OF ALUMINUM (36)
Vd:- VOLTAGE DROP.
GIVEN DATA:
I:- 50 AMPERES.
L:- 100 METERS.
Vd:- 3% ACCEPTABLE OF 230 VOLTS
FORMULA:-
AREA (mm2)= 2*I*L/(K*Vd)
= 2*50*100/(58*6.9)
= 24.98 mm2
= ALMOST 25 mm2
FOR THREE PHASE:
AREA(mm2) = 1.732*50*100/(58*12)
= 12.44 mm2
= ALMOST 15 mm2
3% voltage drop of 400 volts =12 volts.
ABOVE EXPLAINED FOR IS PROPERLT CORRECT.USE AND ENJOY.
ENGR.MUHAMMAD YOUNAS KHAN
M.SC.ENGG.MIEE(UK)
WAZIRABAD CITY,PUNJAB, PAKISTAN
DATE:- 24/3/2014
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / vinay katoch
formula is same but for 50 amp load we can use 3.5c
25mmseq.all.and 10mm seq.cu.
| Is This Answer Correct ? | 18 Yes | 28 No |
Answer / gurunadharaov
by the formula p=v*i*cos@
assume the load as 5kw and operating at 230v and also
assume the load as inductive (so the power factor is 0.5
pf lag)
now by formula
5000=230*i*0.5
i=50A
NOW CABLE SIZE MUST BE > LOAD
SO CABLE SIZE IZ 65SQMM(ITZ DSSEPEND ON AL/CU CABLE)
| Is This Answer Correct ? | 118 Yes | 136 No |
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