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Specification for contactors A.C. contactors for voltages above 1 kV and up to and including 12 kV
:
Available format(s): Hardcopy, PDF
Superseded date: 15-01-2001
Language(s): English
Published date: 30-09-1974
Publisher: British Standards Institution
Cooperating organizationsForewordSpecification1. General1.1 Scope1.2 Object2. Definitions2.1 Definitions2.1 Definitions concerning contactors2.2 Definitions concerning positions and control and auxiliary circuits of a contactor3. Classification4. Characteristics of contactors4.1 Summary of characteristics4.2 Type of contactor4.3 Rated values4.4 Control circuits and air-supply systems4.5 Auxiliary circuits4.6 Coordination with short-circuit5. Nameplates6. Operating conditions6.1 Normal service conditions7. Construction7.1 Mechanical design7.2 Temperature rise7.3 Dielectric properties7.4 Limits of operation8. Tests8.1 Verification of the characteristics of contactors8.2 Type tests8.3 Routine tests8.4 Special testsAppendixA. Information to be given by the purchaser when the operating conditions are different from those stated in 6.1Tables1. Utilization categories2. Verification of rated marking and breaking currents3. Verification of the number of on-load operating cycles4. Preferred values of the rated control supply voltage5. Temperature rise-limits for insulated coils in air and in oil6. Temperature-rise limits for the various materials and parts7. Standard cross sections of copper conductors corresponding to the rated thermal current 8. Test voltage
Definition, classification, nameplates, operating conditions, constructon and tests.
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