This report applies to residual current operated protective devices (hereinafter referred to as ??residual current devices??) for rated voltages not exceeding 440 V a.c. and rated currents not exceeding 200 A@ intended principally for protection against shock hazard.This report may be used as a guide also for residual current devices of rated currents above 200 A and voltages up to 1 000 V@ a.c. It applies:?- to devices performing simultaneously the functions to detect the residual current (see Subclause 2.3.4)@ to compare it to a reference value (see Sub-clause 2.3.5) and to open the protected circuit when the residual current exceeds this reference value (see Sub-clause 2.3.6);?- to the association of devices@ each one of them performing separately one or two of the abovementioned functions@ but acting together in order to accomplish all three functions. Supplementary or particular requirements are necessary for residual current devices@ whether with or without integral overcurrent protection@ intended for accomplishing only one or two of the above three functions. For devices performing other functions in addition to the ones mentioned above@ this report applies together with the relevant standard for the additional functions. Supplementary or particular requirements are necessary for:?- residual current circuit-breakers for use by uninstructed people;?- socket-outlets for use by uninstructed people@ and incorporating residual current devices;?- plugs and couplers for use by uninstructed people@ and incorporating residual current devices;?- devices intended only for the protection of installations or equipment against earth fault currents liable to cause damage to the insulation or fire hazard@ without any reference to the protection of persons against shock hazards;?- devices intended oniy to give a signal in case of an insulation fault in the protected instal??ation. This report applies for conditions as stated in Sub-clause 5.7. For other conditions@ special requirements may be necessary.
IEC TR 60755:1983 history
2008IEC TR 60755:2008 General requirements for residual current operated protective devices
1970IEC TR 60755:1983/AMD2:1992 Amendment 2 - General requirements for residual current operated protective devices
1970IEC TR 60755:1983/AMD1:1988 Amendment 1 - General requirements for residual current operated protective devices
1983IEC TR 60755:1983 General Requirements for Residual Current Operated Protective Devices (Edition 1.0; Amendment 1: 01/1988; Amendment 2: 05/1992)