IEEE 80
IEEE 80
(OP)
My question is. In IEEE 80, Why in fig 33, step 2 is required initially? Is it having influence in next calculations.
Thanks in advance
Thanks in advance
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RE: IEEE 80
RE: IEEE 80
Yes I also got it. It has been used in Mesh Voltage Calculation (Touch Voltage)
RE: IEEE 80
step 2 is only to dimension cable to support short-circuit current (3I0) and the time (tc) duration of short circuit.
Grounding grid is dimensioned to find an adequate arrangements of cables in order to guarantee shock Calculated Potentials are less then shock Tolerable Potentials for a ground current (Ig) during a shock time(ts).