Revised
Applies to three phase alternating current systems having a highest voltage for equipment above 1 kV. Specifies the procedures for the selection of the standard withstand voltages for the phase to earth, phase to phase and longitudinal insulation of the equipment and the installations of these systems. Supersedes sections 2 and 3 of IEC 71-3.
WITHDRAWN
IEC 60071-1:1976 ED6
99.60
Withdrawal effective
19 nën 2016
WITHDRAWN
IEC 60071-1:1993 ED7