IEC 62423 pdf – Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses

IEC 62423 pdf – Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses
1 Scope
The scope of lEC 61008-1 and lEC 61009-1 applies with the following additions.
This standard specifies requirements and tests for Type F and Type B RCDs (ResidualCurrent Devices). Requirements and tests given in this standard are in addition to therequirements of Type A residual current devices. This standard can only be used togetherwith lEC61008-1 and lEC 61009-1.
Type F RCCBs(Residual Current Circuit Breaker) and Type F RCBOs (Residual currentCircuit Breaker with Overcurrent protection) with rated frequency 50 Hz or 60 Hz are intendedfor installations when frequency inverters are supplied between phase and neutral or phaseand earthed middle conductor and are able to provide protection in case of alternatingresidual sinusoidal at the rated frequency，pulsating direct residual currents and compositeresidual currents that may occur.
Type B RCCBs and Type B RCBOs are able to provide protection in case of alternatingresidual sinusoidal currents up to 1 000 Hz, pulsating direct residual currents and smoothdirect 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 residualcurrent was not intended to be covered in IEC 61008-1 or IEC 61009-1 are underconsideration.
For the purpose of manufacturer’s declaration or verification of conformity， type tests shouldbe carried out in test sequences in compliance with Annex A,Annex B,Annex C or Annex Dof this standard.
The complete test sequence for type test of Type F RCCBs and Type F RCBOs is given inTables A.1 and B.1 respectively.The complete test sequence for type test of Type B RCCBsand 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.NOTE2 Requirements for 1 pole with solid neutral are under consideration.
2Normative references
The following referenced documents are indispensable for the application of this document.For dated references,only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
IEC 61008-1:1996,Residual current operated circuit-breakers without integral overcurrentprotection for household and similar uses (RCCBs)- Part 1 : General rules 1
Amendment 1 (2002)Amendment 2 (20o6)
IEC 61009-1:1996,Residual current operated circuit-breakers with integral overcurrentprotection for household and similar uses (RCBOs) -Part 1: General rules 2
Amendment 1 (2002)
Amendment 2 (2oo6j
IEC/TS 60479-1，Effects of current on human beings and livestock – Part 1 : General aspects
IEC/TS 60479-2，Effects of current on human beings and livestock – Part 2: Special aspects
3Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
smooth direct current
a direct current which is ripple free
3.2
Type B residual current device
residual current device for which tripping is ensured as for Type F according to this standardand in addition:
– for residual sinusoidal alternating currents up to 1 000 Hz,
– for residual alternating currents superimposed on a smooth direct current- for residual pulsating direct currents superimposed on a smooth direct current
– for residual pulsating rectified direct current which results from two or more phases
– for residual smooth direct currents whether suddenly applied or slowly increased
independent of polarity
3.3
Type F residual current device
residual current device for which tripping is ensured as for Type A according to lEC 61008-1or IEC61009-1, as applicable, and in addition:
– for composite residual currents，whether suddenly applied or slowly rising intended forcircuit supplied between phase and neutral or phase and earthed middle conductor
– for residual pulsating direct currents superimposed on smooth direct current
4Classification
According to lEC 61008-1 or lEC 61009-1, as applicable with the following addition:
4.1 According to behaviour in presence of d.c.components
– Type F RCDs
– Type B RCDs