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ELECTRICAL ACCESSORIES - CIRCUIT BREAKERS FOR OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR INSTALLATIONS - PART 1: CIRCUIT-BREAKERS FOR A.C. OPERATION
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Published date: 12-01-2013
Publisher: Belgian Standards
1 Scope and object2 Normative references3 Definitions 3.1 Devices 3.2 General terms 3.3 Constructional elements 3.4 Conditions of operation 3.5 Characteristic quantities 3.6 Definitions related to insulation co-ordination4 Classification 4.1 According to the number of poles 4.2 According to the protection against external influences 4.3 According to the method of mounting 4.4 According to the method of connection 4.5 According to the instantaneous tripping current 4.6 According to the l[2]t characteristics5 Characteristics of circuit-breakers 5.1 List of characteristics 5.2 Rated quantities 5.3 Standard and preferred values6 Marking and other product information 6.1 Standard marking 6.2 Additional marking 6.3 Guidance table for marking7 Standard conditions for operation in service 7.1 Ambient air temperature range 7.2 Altitude 7.3 Atmospheric conditions 7.4 Conditions of installation 7.5 Pollution degree8 Requirements for construction and operation 8.1 Mechanical design 8.2 Protection against electric shock 8.3 Dielectric properties and isolating capability 8.4 Temperature-rise 8.5 Uninterrupted duty 8.6 Automatic operation 8.7 Mechanical and electrical endurance 8.8 Performance at short-circuit currents 8.9 Resistance to mechanical shock and impact 8.10 Resistance to heat 8.11 Resistance to abnormal heat and to fire 8.12 Resistance to rusting 8.13 Power loss 8.14 Electromagnetic immunity 8.15 Electromagnetic emission9 Tests 9.1 Type tests and test sequences 9.2 Test conditions 9.3 Test of indelibility of marking 9.4 Test of reliability of screws, current-carrying parts and connections 9.5 Test of reliability of terminals for external conductors 9.6 Test of protection against electric shock 9.7 Test of dielectric properties and isolating capability 9.8 Test of temperature-rise and measurement of power loss 9.9 28-day test 9.10 Test of tripping characteristic 9.11 Test of mechanical and electrical endurance 9.12 Short-circuit tests 9.13 Mechanical stresses 9.14 Test of resistance to heat 9.15 Resistance to abnormal heat and to fire (glow-wire test) 9.16 Test of resistance to rustingAnnex A (informative) Determination of short-circuit power factorAnnex B (normative) Determination of clearances and creepage distancesAnnex C (normative) Test sequences and number of samples necessary to prove compliance with the standard Annex D (informative) Co-ordination under short-circuit conditions between a circuit-breaker and another short-circuit protective device (SCPD) associated in the same circuitAnnex E (normative) Special requirements for auxiliary circuits for safety extra-low voltageAnnex F (informative) Examples of terminalsAnnex G (void) Annex H (normative) Arrangement for short-circuit testAnnex I (normative) Routine tests Annex ZA (normative) Classification of circuit-breakers into energy limiting classes Annex ZB (normative) International publications quoted in this standard with the reference of the relevant European publicationsBibliography
Applicable to a.c. air-break circuit-breakers for operation at 50 Hz or 60 Hz, having a rated voltage not exceeding 440 V (between phases), a rated current not exceeding 125 A and a rated short-circuit capacity not exceeding 25000 A.
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