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Railway applications - Electric equipment for rolling stock - Part 3: Electrotechnical components - Rules for d.c. circuit-breakers
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Available format(s): Hardcopy, PDF
Superseded date: 23-01-2021
Language(s): Spanish, Castilian, English
Published date: 13-06-2003
Publisher: Asociacion Espanola de Normalizacion
1 Scope and object2 Normative references3 Definitions 3.1 Components 3.2 Component parts 3.3 Operational features 3.4 Breaking characteristics4 Classification5 Characteristics 5.1 List of characteristics 5.2 Type of circuit-breaker 5.3 Rated values and limiting values for the main circuit 5.3.1 General 5.3.2 Rated voltages 5.3.3 Rated currents 5.3.4 Rated time constants 5.3.5 Short-circuit characteristics 5.4 Operational frequencies 5.5 Electric and pneumatic control circuits 5.6 Electric and pneumatic auxiliary circuits 5.7 Over-current release 5.8 Peak arc voltages6 Product information 6.1 Component documentation 6.2 Marking7 Normal service conditions8 Constructional and performance requirements 8.1 Constructional requirements 8.2 Performance requirements 8.2.1 Operating conditions 8.2.2 Temperature rise 8.2.3 Operation following inactivity 8.2.4 Electromagnetic compatibility (EMC) 8.2.5 Acoustic noise emission 8.2.6 Dielectric properties 8.2.7 Switching overvoltages 8.2.8 Operational performance capability 8.2.9 Ability to withstand vibration and shock 8.2.10 Ability to make and break under short-circuit conditions9 Tests 9.1 Kinds of tests 9.1.1 General 9.1.2 Type tests 9.1.3 Routine tests 9.1.4 Investigatory tests 9.2 Verification of constructional requirements 9.2.1 General 9.2.2 Type tests 9.2.3 Routine tests 9.3 Type tests for verification of performance requirements 9.3.1 Test sequences 9.3.2 General test conditions 9.3.3 Test sequence I: general performance characteristics 9.3.4 Test sequence II: rated short-circuit making and breaking capacities 9.3.5 Test sequence III: capability to withstand vibration and shock 9.3.6 Test sequence IV: searching for critical currents 9.3.7 Test sequence V: climatic conditions 9.3.8 Test sequence VI: other tests 9.4 Routine tests for verification of performance requirements 9.4.1 General 9.4.2 Mechanical operation 9.4.3 Calibration of releases 9.4.4 Dielectric withstand 9.4.5 Air-tightness (for pneumatic circuit-breaker)Annex A (normative) Test circuit to verify the making and breaking capacitiesAnnex B (informative) Verification of short-circuit making and breaking capacitiesAnnex ZA (normative) Normative references to international publications with their corresponding European publications
Provides the rules for circuit-breakers, the main contacts of which are to be connected to d.c. power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3000 V d.c. according to IEC 60850.
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