Answer Posted / chirag chandarana
-'LV' means the voltage: upto 250V
-'MV' means the voltage: 250 V to 650 V
-‘HV’ means the voltage: 650 V to 33 kV
-‘EHV’ or ‘EHT’ means the voltage exceeding 33 kV
(source: IE Rules, 2010)
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