BIS IS 12640-1 : 2008

NATIONAL FOREWORD
1 Scope
2 Normative references
3 Definitions
4 Classification
5 Characteristics of RCCBs
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 IA (informative) - Methods for determination of
         short-circuit power-factor
Annex IB (informative) - Glossary of symbols
Annex IC (informative) - Examples of terminal designs
Annex ID (informative) - Correspondence between ISO
         and AWG copper conductors
Annex IE (informative) - Follow-up testing program for
         RCCBs
Annex IF (informative) - SCPDs for short-circuit tests

Deals with residual current operated circuit-breakers functionally independent of, or functionally dependent on, line voltage, for household and similar uses, not incorporating overcurrent protection (hereafter referred to as RCCBs), for rated voltages not exceeding 440 V a.c. and rated currents not exceeding 125 A, intended principally for protection against shock-hazard.