IEC 60071-1:2006
Insulation co-ordination - Part 1: Definitions, principles and rules

Standard No.

IEC 60071-1:2006

Release Date

2006

Published By

International Electrotechnical Commission (IEC)

Status

Be replaced 2011-04

Replace By

IEC 60071-1:2006/AMD1:2010

Latest

IEC 60071-1:2019 RLV

Replace

IEC 28/176/FDIS:2005 IEC 60071-1:1993

Scope

This part of International Standard IEC 71 applies to three-phase a.c. systems having a highest voltage for equipment above 1 kV. It specifies the procedure 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. It also gives the lists of the standardized values from which the standard withstand voltages shall be selected. This part recommends that the selected withstand voltages should be associated with the highest voltage for equipment. This association is for insulation co-ordination purposes only. The requirements for human safety are not covered by this Standard. Although the principles of this part also apply to transmission line insulation, the values of the withstand voltages may be different from the standard withstand voltages. The apparatus committees are responsible for specifying the withstand voltages and the test procedures suitable for the relevant equipment taking into consideration the recommendations of this Standard. NOTE - In IEC 71-2 Application Guide, (under revision), all rules for insulation co-ordination given in this Standard are justified in detail, in particular the association of the standard withstand voltages with the highest voltage for equipment. When more than one set of standard withstand voltages is associated with the same highest voltage for equipment, guidance is provided for the selection of the most suitable set.

IEC 60071-1:2006 history

• 0000 IEC 60071-1:2019 RLV
• 2011 IEC 60071-1:2011 Insulation co-ordination - Part 1: Definitions, principles and rules
• 2010 IEC 60071-1:2006/AMD1:2010 Insulation co-ordination - Part 1: Definitions, principles and rules; Amendment 1
• 2006 IEC 60071-1:2006 Insulation co-ordination - Part 1: Definitions, principles and rules
• 1993 IEC 60071-1:1993 Insulation co-ordination - Part 1: Definitions, principles and rules
• 1970 IEC 60071-1:1976 Insulation co-ordination - Part 1: Terms, definitions, principles and rules