EARTH CONDUCTOR CALCULATION

Electrical Basic Calculators


EARTH CONDUCTOR SIZE 


Earthing and its conductor sizing is import for the safety of electrical system, below Calculator help to calculate the Eathing Conductor sizing based on fault current and moc of conductor and time of fault. Below Yellow Highlighted Data can be change by user and Green is output.

 

EARTH CONDUCTOR SIZE CALCULATION SHEET

EARTHING CUNDUCTOR SIZE CALULATION

Fault Current (kA)

k for steel from 6A table

short ckt duration (t) in second

As per I.S. standard 3043-1987

I= S.k.(1/ sqrt(t) >>

Where I =Max. Earh fault current in amp, S =conductor area in mm2, t= fault duration of 1 second & k=is factor for steel conductor i.e. 80 from 6a table of is 3042

S= I/[k.(1/ sqrt(t)]

Parameters

Values

REMARK

Ampere (I)

ka X1000

size of conductor (S)

in mm2

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Location: India