Earth Cable Sizing !!top!! ✰ «TOP-RATED»

Several methods can be used to size an earth cable:

S=I2⋅tkcap S equals the fraction with numerator the square root of cap I squared center dot t end-root and denominator k end-fraction : Minimum cross-sectional area ( mm2mm squared : Expected fault current in Amps (A). : Disconnection time of the protective device (seconds). earth cable sizing

Fault current = 1000 A, disconnection time = 0.1 sec, k = 115 (PVC copper) [ S = \frac\sqrt1000^2 \times 0.1115 = \frac\sqrt100,000115 \approx \frac316115 \approx 2.75 \text mm^2 ] So you’d need at least 2.75 mm² → next standard size = 4 mm² . Several methods can be used to size an

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