Answer / query

High voltage lines are also known as high tension line. The
switchgear used for protection of high voltage system are
termedas HT switcgear...

Answer / mohd arif

HT& HV both are same as engineering point of view but in
some industrial equipment to show the difference in voltage
levels as 440,220 volts it is indicated that 440 as high
voltage. actually HV is rated from 11kv-400kv, which can
also treated as HT.

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