ELECTRICAL ACCESSORIES - CIRCUIT-BREAKERS FOR OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR INSTALLATIONS - PART 1: CIRCUIT-BREAKERS FOR A.C. OPERATION
International Electrotechnical Committee
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Characteristics of circuit-breakers
6 Marking and other product information
7 Standard conditions for operation in service
8 Requirements for construction and operation
9 Tests
Annex A (informative) - Determination of short-circuit
power factor
Annex B (normative) - Determination of clearances and creepage
distances
Annex C (normative) - Test sequences and number of samples
Annex D (informative) - Co-ordination under short-circuit
conditions between a circuit-breaker and another
short-circuit protective device (SCPD) associated in
the same circuit
Annex E (normative) - Special requirements for auxiliary circuits
for safety extra-low voltage
Annex F (informative) - Examples of terminals
Annex G (informative) - Correspondence between ISO and AWG
copper conductors
Annex H (normative) - Arrangement for short-circuit test
Annex I (normative) - Routine tests
Annex J (normative) - Particular requirements for circuit-breakers
with screwless type terminals for external copper
conductors
Annex K (normative) - Particular requirements for circuit-breakers
with flat quick-connect connect terminations
Annex L (normative) - Specific requirements for circuit-breakers
with screw-type terminals for external untreated
aluminium conductors and with aluminium screw-type
terminals for use with copper or with aluminium
conductors
Bibliography
Pertains to a.c. air-break circuit-breakers for operation at 50 Hz, 60 Hz or 50/60 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.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 23 |
