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GB/T 22794-2017 English PDF (GBT22794-2017)

GB/T 22794-2017 English PDF (GBT22794-2017)

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GB/T 22794-2017: Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses

GB/T 22794-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.120;29.120.50
K 31
GB/T 22794-2017 / IEC 62423:2009
Replacing GB/T 22794-2008
Type F and type B residual current operated
circuit-breakers with and without integral overcurrent
protection for household and similar uses
(IEC 62423:2009, IDT)
ISSUED ON: DECEMBER 29, 2017
IMPLEMENTED ON: JULY 01, 2018
Issued by: General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
3. No action is required - Full-copy of this standard will be automatically and immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
Introduction ... 6
1 Scope ... 7
2 Normative References ... 8
3 Terms and Definitions ... 8
4 Classification ... 9
5 Characteristics ... 10
6 Marking and Other Product Information ... 12
7 Standard Conditions for Operation in Service and for Installation ... 12 8 Conditions for Construction and Operation ... 13
9 Tests ... 15
Annex A (Normative) Number of Samples to be Submitted and Test Sequences to be Applied for Verification of Conformity for Type F RCCBs ... 31
Annex B (Normative) Number of Samples to be Submitted and Test Sequences to be Applied for Verification of Conformity for Type F RCBOs ... 33
Annex C (Normative) Number of Samples to be Submitted and Test Sequences to be Applied for Verification of Conformity for Type B RCCBs ... 35
Annex D (Normative) Number of Samples to be Submitted and Test Sequences to be Applied for Verification of Conformity for Type B RCBOs ... 37
Annex E (Normative) Routine Tests for Type F and Type B RCDs ... 39
Bibliography ... 40
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced GB/T 22794-2008 Type B Residual Current Operated Circuit- Breakers with and without Integral Overcurrent Protection for Household and Similar Uses (Type B RCCBs and Type B RCBOs). Compared with GB/T 22794-2008, this Standard has the major changes as follows:
--- Modified the introduction.
--- Modified the scope, this standard covers Type F RCD.
--- Added the definition of Type F residual current device in 3.2.
--- Supplemented the according to behavior in presence of d.c. components in 4.1. --- Supplemented the characteristics of Type F residual current device in 5.1. --- Modified and supplemented the characteristics of Type B residual current device in 5.2.
--- Added Type F RCD sign in 6.1.
--- Modified Type B RCD sign in 6.2.
--- Added Type F and Type B RCD requirements in 8.1.
--- Supplemented the characteristics of three-pole and four-pole Type B RCD in the case of two-pole power supply only in 8.2.1.7.
--- Added the RCD performance under the role of surge residual current in 8.3.1; the RCD performance under the role of in-rush residual current in 8.3.2; the performance when pulsating direct residual current superimposes 10mA
continuous smooth direct residual current in 8.3.3.
--- Added Type F and Type B RCD tests in 9.1.
--- Supplemented the correct operation of three-pole and four-pole Type B RCD when only powered by two-pole in 9.2.3.
--- Added an example of a test circuit to verity proper operation when single-phase supply motor speed control device generates residual sinusoidal AC current with multiple frequency components in Figure 1.
--- Added a test circuit to verify RCD performance when in-rush current occurs in Figure 2.
--- Added Appendix A Quantity of Specimens and Test Procedures for Type F RCCB Compliance Verification; and Appendix B Quantity of Specimens and Test
Procedures for Type F RCBO Compliance Verification.
--- Modified Appendix C Quantity of Specimens and Test Procedures for Type B RCCB Compliance Verification; and Appendix D Quantity of Specimens and Test Procedures for Type B RCBO Compliance Verification.
--- Modified Appendix E Type F and Type B RCD Routine Tests.
The translation method of this Standard equivalently adopts IEC 62423:2009 Type F and Type B Residual Current Operated Circuit-breakers with and without Integral Overcurrent Protection for Household and Similar Uses.
The Chinese document that are consistent with the corresponding international documents that are normative references in this Standard are as follows: --- GB/T 13870.1-2008 Effects of Current on Human Beings and Livestock - Part 1: General Aspects (IEC/TS 60479-1:2005, IDT)
--- GB/T 13870.2-2016 Effects of Current on Human Beings and Livestock - Part 2: Special Aspects (IEC/TS 60479-2:2007, IDT)
--- GB/T 16916.1-2014 Residual Current Operated Circuit-Breakers without Integral Overcurrent Protection for Household and Similar Uses (RCCB) - Part 1: General Rules (IEC 61008-1:2012, MOD)
--- GB/T 16917.1-2014 Residual Current Operated Circuit-Breakers with Integral Overcurrent Protection for Household and Similar Uses (RCBOs) - Part 1: General Rules (IEC 61009-1:2012, MOD)
This Standard was proposed by China Electrical Equipment Industrial Association. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Low-Voltage Electrical Appliance (SAC/TC 189).
Drafting organizations of this Standard: Shanghai Electrical Apparatus Research Institute, Shanghai Dianke Electric Appliance Technology Co., Ltd., Zhejiang Chint Electrics Co., Ltd., Shanghai Liangxin Electrical Co., Ltd., Shanghai Siemens Circuit Protection Systems Ltd., Schneider Electric (China) Co., Ltd., Zhongshan Kaper Electrical Co., Ltd., Wuxi Legrand Low Voltage Electrical Co., Ltd., Foretech Elec. App. (Jiangsu) Co., Ltd., Beijing Abb Low-voltage Installation Materials Co., Ltd., Sassin International Electric Shanghai Co., Ltd., China Electric power Research Institute, Hangzhou Qianlong Electronic Co., Ltd., Zhejiang Fang Yuan Electric Equipment Test Co., Ltd., General Electric Enterprise Development (Shanghai) Co., Ltd., Shanghai Jingyi Electric Apparatus Factory Co., Ltd., People Electric Appliance Group Co., Ltd., Introduction
RCCBs and RCBOs designed according to IEC 61008-1 and IEC 61009-1 are suitable in most of the applications. IEC 61008-1 and 61009-1 provide appropriate requirements and tests for general use in household and similar uses. However, the use of new electronic technology in equipment may result in particular residual currents not covered in IEC 61008-1 or IEC 61009-1. This standard covers specific applications where additional requirements and testing are needed.
This Standard includes definitions, additional requirements and tests for Type F and Type B RCCBs and/or RCBOs to cover particular situations.
The tests shall first be applied according to IEC 61008-1 for Type F or Type B RCCBs and according to IEC 61009-1 for Type F or Type B RCBOs.
After completion of the tests given either in IEC 61008-1 or IEC 61009-1 the additional tests given in this standard shall be applied in order to show conformity to this Standard (see Appendix A, Appendix B for Type F or Appendix C, Appendix D for Type B respectively).
The number of samples to be submitted and test sequences to be applied for verification of conformity for Type F RCCBs and Type F RCBOs are given in Appendix A and Appendix B respectively.
The number of samples to be submitted and test sequences to be applied for verification of conformity for Type B RCCBs and Type B RCBOs are given in Appendix C and Appendix D respectively.
This Standard introduces Type F RCDs (F for Frequency) with rated frequency 50 Hz or 60 Hz intended for protection of circuits with frequency inverters supplied between phase and neutral or phase and earthed middle conductor taking into account the necessary features for these particular situations in addition to the cases covered by type A RCDs. In case of a frequency inverter, e.g. used for motor speed control, supplied between phase and neutral, a composite residual current including the power frequency, the motor frequency and the chopper clock frequency of the frequency inverter may occur in addition to alternating or pulsating d.c. residual currents. Type F RCDs cannot be used where electronic equipment with double bridge rectifiers supplied from two phases is found or if a smooth d.c. residual current can occur. This standard introduces Type B RCDs to be used in case of residual pulsating rectified direct current which results from one or more phases, and smooth d.c. residual current in addition to the cases covered by Type F RCDs. For these applications, two, three or four pole Type B RCDs can be used.
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 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 supplemented 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 Appendix A, Appendix B, Appendix C or Appendix 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 this Standard, the term RCD refers to RCCBs and RCBOs. NOTE 2: Requirements for 1 pole with solid neutral are under consideration.

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