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GB 16916.1-2014: [GB/T 16916.1-2014] Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) -- Part 1: General rules Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB 16916.1: Historical versions
Similar standardsGB 16916.1-2014: [GB/T 16916.1-2014] Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) -- Part 1: General rules---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB16916.1-2014 GB NATIONAL STANDARD ICS 29.120.50 K 31 Replacing GB 16916.1-2003 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) - Part 1.General rules (IEC 61008-1.2002, MOD) Issued on. MAY 06, 2014 Implemented on. JUNE 29, 2015 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the PRC. Table of ContentsForeword... 6 1 Scope... 11 2 Normative references... 13 3 Terms and definitions... 14 3.1 Definition of flowing from the live parts into the earth current... 14 3.2 Definition relating to the excitation of residual current circuit breaker... 15 3.3 Definition relating to the operation and functions of residual current circuit-breakers ... 16 3.4 Definitions relating to the values and ranges of energizing quantities... 19 3.5 Definitions relating to the values and ranges of influencing quantities... 23 3.6 Definitions relating to terminals... 24 3.7 Conditions of operation... 27 3.8 Definitions relating to test... 28 3.9 Definitions relating to insulation coordination... 28 4 Classification... 30 4.1 In accordance with the method of operation... 31 4.2 In accordance with the type of installation... 31 4.3 In accordance with the number of poles and current paths... 31 4.4 In accordance with the possibility of adjusting the residual operating current... 32 4.5 In accordance with resistance to unwanted tripping due to voltage surge... 32 4.6 In accordance with the behavior in presence of DC components... 32 4.7 In accordance with time-delay (in presence of a residual current)... 33 4.8 In accordance with the protection against external influences... 33 4.9 In accordance with the method of mounting... 33 4.10 In accordance with the method of connection... 33 4.11 In accordance with the type of terminal... 34 5 RCCB characteristics... 34 5.1 Summary of characteristics... 34 5.2 Rated quantities and other characteristics... 35 5.3 Standard and preferred values... 37 5.4 Coordination with short-circuit protective device (SCPD)... 41 6 Marking and other product information... 42 7 Standard conditions for operation in service and for installation... 45 7.1 Standard conditions... 45 7.2 Conditions of installation... 46 7.3 Pollution degree... 46 8 Requirements for construction and operation... 46 8.1 Mechanical design... 46 8.2 Protection against electric shock... 56 8.3 Dielectric properties and isolation capacity... 57 8.4 Temperature-rise... 57 8.5 Operating characteristics... 58 8.6 Mechanical and electrical endurance... 58 8.7 Performance at short-circuit current... 58 8.8 Resistance to mechanical shock and impact... 58 8.9 Heat resistance... 58 8.10 resistance to abnormal heat and to fire... 59 8.11 Test device... 59 8.12 Technical requirements for RCCBs functionally dependent on supply voltage... 59 8.13 Behavior of RCCBs in case of overcurrent in the main circuit... 60 8.14 Behavior of RCCBs in the case of current surges caused by impulse voltages... 60 8.15 Behavior of RCCBs in case of earth fault currents comprising a DC component. 60 8.16 Reliability... 61 8.17 Electromagnetic compatibility (EMC)... 61 9 Test... 61 9.1 General... 61 9.2 Test conditions... 62 9.3 Test of indelibility of marking... 63 9.4 Test of reliability of screws, current-carrying parts and connections... 64 9.5 Test of reliability of screw-type terminals for external conductors... 65 9.6 Verification of protection against electric shock... 67 9.7 Test of dielectric properties... 68 9.8 Test of temperature-rise... 78 9.9 Verification of the operating characteristics... 79 9.10 Verification of mechanical and electrical endurance... 83 9.11 Verification of the behavior of the RCCB under short-circuit conditions... 84 9.12 Verification of resistance to mechanical shock and impact... 96 9.13 Test of resistance to heat... 101 9.14 Test of resistance to abnormal heat and to fire... 102 9.15 Verification of trip-free mechanism... 103 9.16 Verification of the operation of the test device at the limits of rated voltage... 104 9.17 Verification of behavior of RCCBs functionally dependent on supply voltage, classified under 4.1.2, in case of failure of the supply voltage... 104 9.18 Verification of limiting values of the non-operating current under overcurrent conditions... 106 9.19 Verification of behavior of RCCBs in case of current surges caused by impulse voltages... 107 9.20 None... 109 9.21 Verification of the correct operation at residual currents with DC components... 109 9.22 Verification of reliability... 111 9.23 Verification of ageing properties of electronic parts... 114 9.24 Electromagnetic compatibility (EMC)... 115 9.25 Anti-rust test... 115 Appendix A (Normative) Test sequence and number of samples to be submitted for certification purposes... 138 Appendix B (Normative) Determination of clearances and creepage distances ... 144 Appendix C (Normative) Arrangement for the detection of the emission of ionized gases during short-circuit tests... 150 Appendix D (Normative) Routine tests... 153 Appendix E (Informative) Method of determination of short-circuit power-factor ... 155 Appendix F (Informative) Glossary of symbols... 157 Appendix G (Informative) Examples of terminal designs... 158 Appendix H (Informative) Comparison between ISO and AWG copper conductors... 162 Appendix I (Informative) Follow-up testing program for RCCBs... 163 Appendix J (Informative) SCPDs for short-circuit tests... 168 Appendix K (Normative) Special requirements for RCCBs having screwless- type terminals for connecting external copper conductors... 170 Appendix L (Normative) Special requirements for RCCB with flat quick-connect terminations... 181 Appendix M (Normative) Special requirements for the RCCBs with screw type terminal to connect external untreated aluminum conductor AND aluminum screw type terminal to connect copper or aluminum conductors... 189 References... 201ForewordThe entire technical content of this part is mandatory. GB 16916 “Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB)” is divided into 3 parts. - Part 1.General rules; - Part 21.Applicability of the general rules to RCCB functionality independence of supply voltage; - Part 22.Applicability of the general rules to the RCCB functionally dependent on supply voltage. This part is part 1 of GB 16916. This part was drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB 16916.1-2003 “Residual current operated circuit- breakers without integral overcurrent protection for household and similar uses (RCCB) - General rules”. As compared with GB 16916.1-2003, the main changes are as follows. - In the Chapter 1 “Scope”, EXTEND the AC rated frequency from 50 Hz or 60 Hz to 50 Hz, 60 Hz, or 50/60 Hz, that is, adding the frequency range which can be applied to both 50 Hz and 60 Hz; meanwhile, in 5.3.7 “Standard frequency”, ADD the standard frequency value 50/60 Hz; - ADD 3.9 the definitions on insulation coordination; - MODIFY the Table 1 and Table 2, in order to further define the limit values of the A-type RCCB breaking time and not driving time; - ADD the 5.3.13 the standard value of rated impulse withstand voltage (Uimp); - In Chapter 6, MODIFY the marking of the rated frequency into. “rated frequency; if RCCB is used for multiple frequencies (e.g. 50/60 Hz), it shall mark it accordingly”; ADD that it may use the symbol to mark its application for isolation”; - In 8.1.1, DEFINE the requirements for the set method of RCCB with multi- level setting values; - In 8.1.2, ADD the requirements that it shall provide the isolation distance as necessary to satisfy the isolation function when the RCCB is at disconnected position, and PROVIDE one or two indication devices to indicate the devices of the main contact; - MODIFY the contents of 8.1.3, 9.7.7, 9.20 and Appendix B on insulation coordination. ADD the requirements and verification of isolation function; in Table 5, INCREASE the electrical gap between the open contacts of the RCCB of the rated working voltage 230/400 V, 230 V and 400 V from 3 mm to 4 mm; ADD 9.7.7 the verification of impulse withstand voltage (across the electrical gap and across solid insulation) and the leakage current between open contacts; - MODIFY 8.1.4.4 the description methods on the materials of the current carrying parts. Originally it clearly indicates that the material of the current carrying part is copper and other alloys, AND it is currently modified to indicate that it is metal, making examples that the material is copper and other alloys. It is defined that when using iron alloy or appropriate coating of iron alloy, it shall use the anti-rust test to verify whether it comply with the anti-corrosion requirements. Therefore, ADD the new clause “9.25 Anti-rust test”; - MODIFY 9.5.1, specifying that the various types of conductors, hard conductors (single core or twisted) and soft conductors shall be subjected to the test, as well as the cross section range of the test conductors corresponding to the conductor types; MODIFY the Table 12, defining the tension force applied accordingly to the conductors of different cross sections; - ADD 9.7.7 “Verification of impulse withstand voltage (across the electrical gap and across solid insulation) and the leakage current between open contacts”, which includes the test methods of using impulse withstand voltage to verify the electrical gap, the leakage current between the open contacts (suitable for isolation), the insulation between open contacts, and the basic insulation withstand voltage capability. INCLUDE also the original 9.20 “verification of insulation impulse withstand voltage performance” into this test clause; ADJUST accordingly the test voltage value; - MODIFY 9.9.2.3 a) test methods for the suddenly appeared residual sinusoidal AC current. MODIFY the method of measuring the breaking time into firstly close the switch S2 and then close the power switch S1.The time measured by the test method includes the time to supply power to the RCCB, making the measurement time more reasonable; - MODIFY 9.9.2.4 the test procedure for the residual current in the range of 5IΔn to 500 A, from originally selecting 6 residual current values (5 A, 10 A, 20 A, 50 A, 100 A and 200 A) for test to arbitrarily selecting 2 residual current values from the current range of 5 A ~ 200 A to conduct test, simplifying the test procedures; - In 9.11 the verification of RCCB working conditions under short-circuit condition, MODIFY the test circuit and description method. COMBINE the originally 5 short circuit tests respectively in single phase circuit, three phase circuit, and three phase four wire circuit, respectively, into one short circuit test diagram, and ADD an additional test circuit diagram and impedance Z structure diagram for IT test; in 9.11.2.1 the general test conditions, ADD item j). “oscillogram description”, defining the methods on how to determine the external voltage, the recovery voltage, and the expected short-circuit current, etc., and ADD Figure 30 “Example of short circuit test setting oscillogram”; - In 9.11.2.3, ADD a short circuit test to verify the applicability of RCCB in IT systems; - MODIFY 9.14 abnormal heat and flame test; MODIFY the number of samples and application prohibition parts, the test is conducted on 3 test specimens AND the glow-wire cannot be directly applied to the following parts. terminals, arc chamber and electromagnetic trip part; - In 9.17, DEFINE the test methods to verify the multi-phase power supply requirements for the products as classified in 4.1.2.2; - Further DEFINE the test methods to verify the correct action in 9.21.1.4 when the residual pulsating DC current is superimposed 0.006 A smooth DC current; - DELETE the original Appendix E “Test to verify the RCCB compliance with electromagnetic compatibility (EMC) technical requirements, supplemental test procedures, and test specimen quantity list”, INCLUDE the corresponding contents into the newly added clause 9.24 “Electromagnetic compatibility” as well as the newly added EMC test procedures H, I and J in the Table A.1, Table A.2 and Table A.3 in Appendix A, including the test items, the number of test specimens and the qualification judgment number, etc.; and ADD T2.6 the test items such as “the common mode conducted disturbance below 150 kHz frequency range”; - ADD new Appendix. Specific requirements for RCCB with thread-less terminals, Specific requirements for RCCB with flat fast connection terminals, and Special requirements for RCCB with threaded connection terminals connecting external untreated aluminum wires and the aluminum threaded connection terminal to connect copper or aluminum conductors; - RENUMBER the Appendix alphabetically. This part, through the redrafting method, modifies and adopts the International Electrotechnical Commission IEC 61008-1.2012 “Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) - Part 1.General rules”. The main differences between this part and IEC 61008-1.2012 are as follows. - In this part, as for the RCCB for which the IΔn ≤ 0.03 A action function is related to the power supply voltage AND which cannot be automatically disconnected when the power supply voltage fails, RETAIN the technical requirements that it can still act when the power supply voltage decreases to 50 V as mentioned in GB 16916.1-2003.Therefore, ADD note 2 below 4.1.2.2, AND the test method shall follow 9.9.5. - In paragraph 5 of 9.7.7.5 of IEC 61008-1.2012, it is mistakenly written as follows. “Under conditions of 9.9.2.3, the RCCB shall trip when passing through 1.25IΔn current...”; it is corrected in this part as follows. “Under conditions of 9.9.2.3a), the RCCB shall trip when passing through 1.25IΔn current...”. This mistake also appears in 9.19.2.3, 9.22.1.3a), 9.22.1.5, 9.22.2 and 9.23, which shall be modified accordingly. - In 9.11.2.1, MODIFY “SCPD (SEE 3.4.8)” into “SPCD (SEE 3.4.10); MODIFY “impedance L” into “impedance Z”. - In Table A.1, MODIFY “9.1.5 Trip-free mechanism” into “9.15 Trip-free mechanism”. - In Table I.1 (Table IE.1 of IEC 61008-1.2012), MODIFY “9.20 Verification of electrical gap by impulse withstand voltage” into “9.7.7.2 Verification of electrical gap by impulse withstand voltage”; ADD the descriptions. “it shall also conduct test between each pole in order”. - As compared with IEC 61008-1.2012, in Table A.3 of Appendix A in this part, ADD one group of 3 test specimens for the minimum In rating and maximum IΔn rating to the E test procedure; whilst DELETE one group of 3 test specimens for the minimum In rating and maximum IΔn rating from the G test procedure. It is believed this is more reasonable, because it shall respectively use the test specimens for maximum rating In and the minimum rating In to conduct the short circuit test, whilst for the reliability test, it is enough to conduct test against the test specimen of the maximum rating. - RENUMBER the Appendix alphabetically. This part specifies the terms and definitions, technical requirements and tests of the various types of RCCBs. When used for a particular type of RCCB, this part shall be used together with GB 16916.21-2008 “Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) - Part 21.Applicability of the general rules to RCCB functionality independence of supply voltage” and GB 16916.22-2008 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) - Part 22.Applicability of the general rules to the RCCB functionally dependent on supply voltage”. This part was proposed by China Electrical Equipment Industry Association. This part shall be under the jurisdiction of the National Low Voltage Electrical Apparatus Standardization Technical Committee (SAC/TC 189). The responsible drafting organizations of this part. Shanghai Electric Appliance Research Institute, SEARI Electric Technology Co., Ltd. The participating drafting organizations of this part. Zhejiang Zhengtai Electric Appliance Co., Ltd., Schneider Electric (China) Investment Co., Ltd., Shanghai Liangxin Electric Appliance Co., Ltd., Shanghai Electrical Equipment Testing Institute, Suzhou Electric Appliance Research Institute Co., Ltd., Shanghai Noark Electric Co., Ltd., Zhejiang Delixi Electric Co., Ltd., Foretech Electric (Jiangsu) Co., Ltd., Sassin International Electric Shanghai Co., Ltd., JBANG Electric Co., Ltd., Huatong Electromechanical Co., Ltd., Shanghai People Enterprise Group Wenzhou Electric Co., Ltd., Legrand Low-voltage Electric (Wuxi) Co., Ltd., TOLLEA Technology Group Co., Ltd., Yuyao Jiarong Electronic Appliance Co., Ltd., Zhejiang Garcia Electrical Appliance Co., Ltd. The main drafters of this part. Zhou Jigang, Liu Jinyan, Gong Junchang. The participating drafters of this part. Wang Xianfeng, Zhou Lei, Fan Jianguo, Yi Ying, He Xiuming, Yan Pengbin, He Leru, Zhao He, Su Hanlin, Bo Guanyong, Feng Xinmin, Jin Lingman, Fu Kai, Ye Xiangfa, Qian Jiacan, Wu Manhuai. This part replaces the standard previously issued as follows. - GB 16916.1-1997, GB 16916.1-2003. Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) - Part 1.General rules1 ScopeThis part of GB 16916 specifies the terms and definitions, technical requirements and tests of various types of RCCB.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document. GB 2099.1 Plugs and socket-outlets for household and similar purposes - Part 1.General requirements (GB 2099.1-2008, IEC 60884-1.2006, MOD)3 Terms and definitionsThe following terms and definitions apply to this document. The terms “voltage” and “current” used in this part are RMSs. It refers to the current of pulsating wave form which assumes, in each period of the rated power frequency, the value 0 or a value not exceeding DC 0.006 A, during one single interval of time, expressed in angular measure, of at least 150°.4 ClassificationThe RCCB is classified as follows.5 RCCB characteristicsThe rated operational voltage (hereinafter referred to as the rated voltage) of the RCCB is the voltage value assigned by the manufacturer to which its performance is referred. The rated impulse withstand voltage of the RCCB shall be equal to or higher than the standard value of the rated impulse withstand voltage as specified in Table 3.6 Marking and other product informationEach RCCB shall be marked in a durable manner with all or part of the following (for small product) data. For RCCBs operated by means of two buttons, the push-button designed for the opening operation only shall be RED and/or be marked with the symbol “O”. Red shall not be used for any other push-button of the RCCB. If a push-button is used for closing the contact AND is evidently identified as such, its depressed position is sufficient indicate the closed position.7 Standard conditions for operation in service and for installationThe RCCB complying with the requirements of this part shall be capable of operating under the standard conditions as shown in Table 4.8 Requirements for construction and operationThe moving contacts of all poles of multi-pole RCCB shall be so mechanically coupled that all poles except for the switched neutral, if any, make and break substantially together, whether operated manually or automatically. If the cover is used as a guiding means for push-buttons, it shall not be possible to remove the buttons from the outside of the RCCB.9 TestUnless otherwise specified, the RCCB is installed individually in accordance with manufacturer’s instructions and in free air, at an ambient temperature between 20 °C and 25 °C, AND is protected against undue external heating or cooling. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB 16916.1-2014 be delivered?Answer: The full copy PDF of English version of GB 16916.1-2014 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB 16916.1-2014_English with my colleagues?Answer: Yes. 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