M00036332
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LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 7-1: ANCILLARY EQUIPMENT - TERMINAL BLOCKS FOR COPPER CONDUCTORS
International Electrotechnical Committee
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Availability date: 11/06/2021
FOREWORD<br>1 General<br> 1.1 Scope<br> 1.2 Normative references<br>2 Definitions<br>3 Classification<br>4 Characteristics<br> 4.1 Summary of characteristics<br> 4.2 Type of terminal block<br> 4.3 Rated and limiting values<br> 4.3.1 Rated voltages<br> 4.3.2 Short-time withstand current<br> 4.3.3 Standard cross-sections<br> 4.3.4 Rated cross-section<br> 4.3.5 Rated connecting capacity<br>5 Product information<br> 5.1 Marking<br> 5.2 Additional information<br>6 Normal service, mounting and transport conditions<br>7 Constructional and performance requirements<br> 7.1 Constructional requirements<br> 7.1.1 Clamping units<br> 7.1.2 Mounting<br> 7.1.3 Clearances and creepage distances<br> 7.1.4 Terminal identification and marking<br> 7.1.5 Resistance to abnormal heat and fire<br> 7.1.6 Rated cross-section and rated connecting capacity<br> 7.2 Performance requirements<br> 7.2.1 Temperature-rise<br> 7.2.2 Dielectric properties<br> 7.2.3 Short-time withstand current<br> 7.2.4 Voltage drop<br> 7.2.5 Electrical performance after ageing (for <br> screwless-type terminal blocks only)<br> 7.3 Electromagnetic compatibility (EMC)<br>8 Tests<br> 8.1 Kinds of test<br> 8.2 General<br> 8.3 Verification of mechanical characteristics<br> 8.3.1 General<br> 8.3.2 Attachment of the terminal block on its support<br> 8.3.3 Mechanical properties of clamping units<br> 8.4 Verification of electrical characteristics<br> 8.4.1 General<br> 8.4.2 Verification of clearances and creepage distances<br> 8.4.3 Dielectric tests<br> 8.4.4 Verification of the voltage drop<br> 8.4.5 Temperature-rise test<br> 8.4.6 Short-time withstand current test<br> 8.4.7 Ageing test (for screwless-type terminal blocks <br> only)<br> 8.5 Verification of thermal characteristics<br> 8.6 Verification of EMC characteristics<br> 8.6.1 Immunity<br> 8.6.2 Emission<br>Annex B (informative) Items subject to agreement between<br> manufacturer and user<br>Annex D (normative) Additional requirements for test<br> disconnect terminal blocks<br>Bibliography
Describes requirements for terminal blocks with screw-type or screw-less-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors.
Published | |
Document Type | Standard |
Status | Current |
Publisher | International Electrotechnical Committee |
Pages | |
ISBN | |
Committee | TC 17 |