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  • BSI
    BS EN 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Principles, requirements and tests
    Edition: 2007
    $569.57
    / user per year

Description of BS EN 60664-1:2007 2007

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 /2.

Standard NumberBS EN 60664-1:2007
TitleInsulation coordination for equipment within low-voltage systems - Principles, requirements and tests
StatusWithdrawn
Publication Date2007-08-31
Withdrawn Date2020-07-27
ReplacesBS EN 60664-1:2003
Replaced ByBS EN IEC 60664-1:2020, BS EN IEC 60664-1:2020
Identical National Standard OfIEC 61557-8:2014, IEC 60664-1:2007, EN 60664-1:2007
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
ICS29.080.30 Insulation systems
CommitteeGEL/109
ISBN978 0 580 54335 7
PublisherBSI
Pages78

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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