BS EN 60664-1:2007 - Insulation coordination for equipment within low-voltage systems. Principles, requirements and tests

BS EN 60664-1:2007

Insulation coordination for equipment within low-voltage systems. Principles, requirements and tests

Status : Superseded, Withdrawn   Published : August 2007 Replaced By : BS EN IEC 60664-1:2020
Conformity to regulation : Designated

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IEC 60664-1:2007 Deals with insulation coordination for equipment within low-voltage systems. It applies to equipment for use up to 2 000 m above sea level having a rated voltage up to a.c. 1 000 V with rated frequencies up to 30 kHz, or a rated voltage up to d.c. 1 500 V. It specifies the requirements for clearances, creepage distances and solid insulation for equipment based upon their performance criteria. It includes methods of electric testing with respect to insulation coordination. The minimum clearances specified in this standard do not apply where ionized gases occur. Special requirements for such situations may be specified at the discretion of the relevant technical committee. This standard does not deal with distances:

- through liquid insulation,

- through gases other than air,

- through compressed air.

Main changes have been made with respect to the previous edition:

- Amendment of Japanese mains conditions with regard to the rated impulse voltages, the rationalized voltages and the nominal voltages of supply systems for different modes of overvoltage control

- Amendment of dimensioning of clearances smaller than 0,01 mm

- Alignment of the table and the corresponding formula regarding test voltages for verifying clearances at different altitudes

- Amendment of interpolation of the creepage distance values for functional insulation

- Amendment of creepage distance dimensioning taking into account ribs

- Revision of the former Clause 4 "Tests and measurements" (now Clause 6) to achieve a more detailed description of the tests and their purpose, the test equipment and possible alternatives

- Change of Annex C "Partial discharge test methods" from a former technical report, Type 2 (now called TS), to a normative Annex C. It has the status of a horizontal standard in accordance with

IEC Guide 104


Standard NumberBS EN 60664-1:2007
TitleInsulation coordination for equipment within low-voltage systems. Principles, requirements and tests
StatusSuperseded, Withdrawn
Publication Date31 August 2007
Conformity to regulationDesignated
Withdrawn Date27 July 2020
Normative References(Required to achieve compliance to this standard)IEC 60085:2004, EN 60068-2-2:1993, EN 60085:2004, EN 61180-2:1994, IEC 60050-604:1987/AMD 1:1998, IEC 60068-2-78:2001, HD 472 S1:1989/Corrigendum:2002, EN 61140:2002, EN 60243-1:1998, EN 60664-5:2003, IEC 60664-5, EN 61180-1:1994, IEC 60664-4:2005, EN 60112:2003, EN 60068-2-14:1999, IEC 61180-1:1992, IEC Guide 104:1997, IEC 60243-1:1998, IEC 60050-604:1987, IEC 60099-1:1991, HD 472 S1:1989, IEC 60270, IEC 60270:2000, IEC 60068-2-14:1984, IEC 60068-1:1988, IEC 61180-2:1994, IEC 60050-212:1990, IEC 60050-151:2001, IEC 60112:2003, EN 60068-2-78:2001, HD 472 S1:1989/AMD 1:1995, IEC 60038:1983, IEC 60364-4-44:2001/AMD 1:2003, EN 60216, IEC 60050-826:2004, EN 60099-1:1994, IEC 60068-2-2:1974, IEC 60216, IEC 61140:2001/AMD 1:2004, EN 60270:2001, EN 61140:2002/AMD 1:2006, IEC 60364-4-44:2001, EN 60664-4:2006, IEC 61140:2001, EN 60068-1:1994
Informative References(Provided for Information)No other standards are informatively referenced
Replaced ByBS EN IEC 60664-1:2020
ReplacesBS EN 60664-1:2003
International RelationshipsIEC 61557-8:2014,IEC 60664-1:2007,EN 60664-1:2007
Draft Superseded By04/30111838 DC
DescriptorsWithstand voltage, Electrical equipment, Impulse voltages, Electrical insulating materials, Leakage paths, Electrical installations, Dimensions, Rated voltage, Low-voltage equipment, Solid electrical insulating materials, Overvoltage, Electrical insulation, Electrical testing, Clearances, Coordination, Clearance distances
Title in FrenchCoordination de l'isolement des matériels dans les systèmes (réseaux) à basse tension. Principes, exigences et essais
Title in GermanIsolationskoordination für elektrische Betriebsmittel in Niederspannungsanlagen. Grundsätze, Anforderungen und Prüfungen
ISBN978 0 580 54335 7
File Size1.584 MB

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