IEC 60071-1 Ed. 7.0 b:1993
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Insulation co-ordination – Part 1: Definitions, principles and rules
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 60071-3.
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