BIS IS 12640-2 : 2008

NATIONAL FOREWORD
1 Scope
2 Normative references
3 Definitions
4 Classification
5 Characteristics of RCBOs
6 Marking and other product information
7 Standard conditions for operation in service and for
  installation
8 Requirements for construction and operation
9 Tests
Annex A (normative) - Test sequence and number of
        samples to be submitted for certification
        purposes
Annex B (normative) - Determination of clearances and
        creepage distances
Annex C (normative) - Arrangement for the detection of
        the emission of ionized gases during short-circuit
        tests
Annex D (normative) - Routine tests
Annex E (normative) - Special requirements for auxiliary
        circuits for safety extra-low voltage
Annex F (normative) - Coordination between RCBOs and
        separate fuses associated in the same circuit
Annex G (normative) - Additional requirements and tests
        for RCBOs consisting of a circuit-breaker and
        a residual current unit designed for assembly
        on site
Annex H (normative) - List of tests, additional test
        sequences and numbers of samples for verification
        of compliance of RCBOs with the requirements
        of electromagnetic compatibility (EMC)
Annex IA (informative) - Methods for determination of
         short-circuit power-factor
Annex IB (informative) - Glossary of symbols
Annex IC (informative) - Examples of terminals
Annex ID (informative) - Correspondence between ISO
         and AWG copper conductors
Annex IE (informative) - Follow-up testing programme for
         RCBOs

Applicable to residual current operated circuit-breakers with integral overcurrent protection functionally independent of, or functionally dependent on, line voltage for household and similar uses, for rated voltages not exceeding 440 V a.c. with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz and rated currents not exceeding 125 A and rated short-circuit capacities not exceeding 25000 A for operation at 50 Hz or 60 Hz.