Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses
|Publication Date:||1 December 2011|
|ICS Code (Fuses and other overcurrent protection devices):||29.120.50|
|ICS Code (Electrical accessories):||29.120|
The scope of IEC 61008-1 and IEC 61009-1 applies with the following additions.
This standard specifies requirements and tests for Type F and Type B RCDs (Residual Current Devices). Requirements and tests given in this standard are in addition to the requirements of Type A residual current devices. This standard can only be used together with IEC 61008-1 and IEC 61009-1.
Type F RCCBs (Residual Current Circuit Breaker) and Type F RCBOs (Residual current Circuit Breaker with Overcurrent protection) with rated frequency 50 Hz or 60 Hz are intended for installations when frequency inverters are supplied between phase and neutral or phase and earthed middle conductor and are able to provide protection in case of alternating residual sinusoidal at the rated frequency, pulsating direct residual currents and composite residual currents that may occur.
Type B RCCBs and Type B RCBOs are able to provide protection in case of alternating residual sinusoidal currents up to 1 000 Hz, pulsating direct residual currents and smooth direct residual currents.
RCDs according to this standard are not intended to be used in d.c. supply systems.
Further requirements and tests for products to be used in situations where the residual current was not intended to be covered in IEC 61008-1 or IEC 61009-1 are under consideration.
For the purpose of manufacturer's declaration or verification of conformity, type tests should be carried out in test sequences in compliance with Annex A, Annex B, Annex C or Annex D of this standard.
The complete test sequence for type test of Type F RCCBs and Type F RCBOs is given in Tables A.1 and B.1 respectively. The complete test sequence for type test of Type B RCCBs and Type B RCBOs is given in Tables C.1 or D.1 respectively.
NOTE 1 Throughout the document, the term RCD refers to RCCBs and RCBOs.
NOTE 2 Requirements for 1 pole with solid neutral are under consideration.