GB 16917.1-1997 Residual current operated circuit breakers (RCBO) with overcurrent protection for household and similar purposes Part 1: General rules
Some standard content:
GB16917.1-1997 | 》and its first revision IEC1009-1Amendment1:1995. The technical content and writing format are completely consistent with IEC1009-1:1991. By equivalently adopting IEC standards, my country's standards for residual current-operated circuit breakers with overcurrent protection for household and similar purposes are consistent with international standards to meet the needs of international trade, technology and economic exchanges. The technical requirements of this standard comply with the general requirements of GB6829-1995 and IEC755. Part 2 of this standard lists the standards cited in the text of this standard. If the cited international standard has an equivalent or equivalent national standard, the equivalent or equivalent national standard number and name will be listed. If the cited international standard does not have an equivalent or equivalent national standard, list the number and name of the international standard. If most of the cited international standards are consistent with the corresponding national standards but some of the contents are inconsistent, the numbers and names of the international standards and national standards will be listed at the same time for reference when using this standard. Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F, Appendix G and Appendix H of this standard are all appendices of the standard. Appendix IA, Appendix IB, Appendix IC, and Appendix ID of this standard are all reminder appendices. This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the National Low Voltage Electrical Appliances Standardization Technical Committee. This standard is drafted by the Shanghai Electrical Apparatus Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are: Zhou Jigang, Sun Zhu, and Lu Yinghua. GB16917.1—1997
IEC Foreword
1) Formal resolutions or agreements on technical issues formulated by technical committees in which all national committees with special concerns about the issue participate express as much as possible the There is international consensus on the issues involved. 2) This resolution and agreement are for international use in the form of recommendations and are recognized by national committees in this sense. 3) In order to promote international unification, IEC hopes that: all national committees, to the extent domestic conditions permit, should adopt IEC recommendations as their national specifications. Any inconsistencies between IEC recommendations and the corresponding national regulations should be stated as clearly as possible in the national regulations.
This standard was developed by Committee 23E "Household circuit breakers and similar devices" of IEC Technical Committee 23 "Electrical Accessories". The text of this standard is based on the following documents. June Law Procedure
23E(CO)69
23E(CO)95+95A
23E(CO)97
Voting Report
23E( CO)86+86A
23E(CO)120
23E(CO)118
June Law ProcedurewwW.bzxz.Net
23E(CO)90
23E (CO)91
Details of the vote to approve this standard can be obtained from the vote report listed in the table above. Voting report
23E(CO)112
23E(CO)107
Introduction
National Standards of the People's Republic of China
Brands for household and similar purposes Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses(RCBO)Part 1: General rules|| tt||GB16917.1-1997
idt IEC 1009-1:1991
This part includes the definitions, technical requirements and tests of all types of RCBO. For specific types, this section should be used together with the following relevant sections.
Part GB16917.21: Applicability of general rules to RCBOs whose operating functions are independent of line voltage. Part GB16917.22: Applicability of general rules to RCBOs whose operating functions are related to line voltage. 1 Scope of application
This standard is applicable to household or household appliances with AC 50Hz or 60Hz, rated voltage not exceeding 440V, rated current not exceeding 125A, rated short-circuit capacity not exceeding 25000A, and operating functions independent of or related to line voltage. Residual current operated circuit breaker with overcurrent protection (hereinafter referred to as RCBO) for similar purposes. These devices are used to protect persons from indirect contact, connect exposed conductive parts of equipment to a suitable earth electrode, and provide overcurrent protection for wiring equipment in buildings and similar purposes. They also provide protection against fire hazards caused by ground fault currents that persist due to the failure of overcurrent protective devices to operate. RCBO with a rated residual operating current not exceeding 30mA can also be used as a supplementary protection measure when electric shock protection measures fail. This standard applies to devices that can simultaneously detect residual current, compare the residual current value with the residual operating current value, and disconnect the protected circuit when the residual current exceeds this value. The device can also make, carry and break overcurrents under specified conditions. Note
1 The content of this standard regarding operation under residual current conditions is based on GB16916.1. The content of this standard on overcurrent protection is based on GB10963. 2RCBOs are mainly used by non-professionals and do not require maintenance. They can be submitted for certification. 3IEC364 gives the installation and use procedures of RCBO. 4 RCBOs within the scope of this standard are suitable as isolators (see 8.1.3). When excessive overvoltage is prone to occur on the power supply side (for example, the power supply is introduced through overhead lines), special protective measures may have to be taken (for example, the use of lightning arresters) (see IEC364-4-443). Note: For RCBOs with protection levels higher than IP20, special structures may be required. This standard also applies to RCBOs assembled from general-purpose residual current devices and circuit breakers. The mechanical assembly can be completed by the manufacturer in the factory or on site. In this case, the requirements of Appendix G apply. For RCBOs with more than one rated current, as long as the rated current of the State Bureau of Technical Supervision approved on 1997-06-28 and implemented on 1998-09-01 | This standard also applies if the means for changing to another value are inaccessible and the rated value cannot be changed without the use of tools.
Necessary technical requirements can be supplemented for plug-in RCBO. Special technical requirements must be attached to RCBOs that are incorporated into household and similar general-purpose plugs, sockets or appliance connectors or that are specifically used in combination with them.
Note: Currently, for RCBOs built into plugs and sockets or RCBOs dedicated to plugs and sockets, the technical requirements of this standard can be used together with GB2099.1 (when applicable).
This standard does not apply to:
RCBO used for motor protection;
RCBO with a fixed current value that can be adjusted by the user during use. The technical requirements of this standard apply to normal environmental conditions (see 7.1). For RCBO used in areas with severe conditions, necessary technical requirements can be added.
RCBOs using batteries are not included in the scope of this standard. Appendix F gives guidelines for the cooperation of RCBOs and fuses. 2 Reference standards
The provisions contained in the following standards constitute provisions of this standard through citation in this standard. When this standard is published, the versions indicated are valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB156-93 Rated voltage
GB2099.1-1996 General requirements for plugs and sockets for household and similar purposes GB/T2900.18-92 Electrical terminology for low-voltage electrical appliances GB/T2423.4-93 Basic environmental test procedures for electrical and electronic products Db: Alternating damp heat test method GB/T2424.2-93 Basic environmental test procedures for electrical and electronic products damp heat test guidelines GB4208--93 Enclosure protection level (IP code) gold glow wire test methods and guidelines
GB5169 .4-85 Fire hazard test for electrical and electronic products GB/T5465.2-1996 Graphical symbols for electrical equipment GB6829-1995 General requirements for residual current action protectors GB7676.1-87 Definition and general requirements for direct-acting analog indicating electrical measuring instruments and their accessories
GB10963-89 Circuit breakers for household and similar purposes GB16916.1-1997 Residual current without overcurrent protection for household and similar purposes Operating Circuit Breakers Part 1: General Rules
IEC38:1983 Standard Voltage
IEC50(151):1978 International Electrical Vocabulary (IEV) Chapter 151: Electromagnetic Devices IEC364-4-443:1990 Construction Electrical installations of buildings Part 4: Safety protection Chapter 44: Overvoltage protection Section 443: Atmospheric or operating overvoltage protection IEC364-5-53: 1986 Electrical installations of buildings Part 5: Selection of electrical equipment Chapter Chapter 53: Switchgear and control equipment
IEC755:1983 General requirements for residual current operating protective devices 3 Definitions
For the purpose of this standard, the following definitions apply. Unless otherwise specified, the terms "voltage" and "current" used in this standard are valid values. Note
1 symbol assembly is shown in Appendix IB.
GB 16917.1-1997
2 When the term "device" or mechanical switching device" in the IEV definition is replaced by the term \RCBO\, the IEV definition may also be referred to. 3.1 Regarding the inflow from live parts Definition of earth current 3.1.1 Ground fault current earthfaultcurrent The current that flows into the earth due to an insulation fault. 3.1.2 Earth leakage current earthleakagecurrent The current that flows into the earth from live parts of the equipment. 3.1.3 Pulsating DC current pulsatingdirectcurrent. Within each rated power frequency cycle, the pulsating waveform current IEV101-04-34) with a current value of 0 or no more than 0.006A DC during a period of at least 150° is expressed in angle. 3.1.4 Current delay angle α current delay angle α passing phase. Control, the time expressed in angle that delays the starting moment of current conduction 3.2 Definition of residual current circuit breaker excitation 3.2.1 The excitation quantity energizing quantity is applied to an RCBO alone or together with other such quantities, so that it can The amount of electrical excitation that completes its function under specified conditions.
3.2.2 Energizing input-quantity The amount of excitation that causes the RCBO to operate when applied under specified conditions. For example, these conditions may include certain auxiliaries. Excitation of the component. 3.2.3 Residual current (I) The vector sum of the instantaneous values ??of the current flowing through the RCBO main circuit (expressed by the effective value) 3.2.4 Residual operating current The residual operating current makes the RCBO operate under specified conditions. Current value. 3.2.5 Residual non-operating current is the residual current value at which the RCBO does not operate under specified conditions at or below this current. 3.3 Definition of the action and function of the residual current circuit breaker. Electrical switching device is a device used to connect or break the current in one or several electrical circuits. 3.3.2 Mechanical switching device is a switching device that uses detachable contacts to close or break one or several electrical circuits. 3.3. 3 fuse fuse
A switching appliance that breaks the current by fusing one or several specially designed and formulated components to disconnect the circuit it is connected to when the current exceeds a specified value for a long enough time. The fuse includes a fuse. 3.3.4 Circuit-breaker
can connect, carry and break current under normal circuit conditions, and can also connect and disconnect under specified abnormal conditions (such as short circuit). A mechanical switching appliance that carries a certain time and (automatically) breaks the current. 3.3.5 Residual current operated circuit-breaker is a mechanical switching appliance used to connect, carry and break current under normal operating conditions and to open the contacts when the residual current reaches a specified value under specified conditions.
3.3.6 Residual current operated circuit-breaker without integral overcurrent protection (RCCB) Residual current operated circuit-breaker without integral overcurrent protection (RCCB) A residual current-operated circuit breaker that cannot perform overload and/or short-circuit protection functions. GB16917.1-1997 | 3.3.8 RCBO whose operation function is independent of line voltage RCBO's functionally independent of line voltage is an RCBO whose detection, identification and breaking functions are independent of line voltage. Note: This type of device is defined in GB6829 as a residual current protector without auxiliary power supply. 3.3.9 RCBO whose operation function is related to the line voltage. RCBO's functionally dependent on line voltage is an RCBO whose detection, discrimination and breaking functions are related to the line voltage. Note
1 This definition partially includes the definition of residual current protector using auxiliary power supply in 3.1.9 of GB6829. 2Obviously, in order to detect, identify and disconnect, line voltage must be applied to the RCBO. 3.3.10 The breaking time of RCBO is the time elapsed from the moment when residual operating current is suddenly applied to the moment when all pole arcs are extinguished. 3.3.11 Limiting non-actuating time is the maximum delay time for applying a residual current value greater than the remaining non-actuating current to the RCBO without causing the RCBO to operate. 3.3.12 Time-delay RCBO time-delay RCBO is specially designed to correspond to a given residual current value and can reach a predetermined limit non-driving time RCBO. 3.3.13 Closed position closedposition ensures the predetermined continuity position of the RCBO main circuit. openposition
3.3.14 Disconnect position
The position that ensures a predetermined electrical gap between the disconnect contacts of the RCBO main circuit. 3.3.15-pole pole
A component of an RCBO connected only to an independent conductive path of the main circuit, having contacts for connecting and disconnecting the main circuit itself. It does not include those parts used to hold the poles together and make them move together. 3.3.15.1 Overcurrent protected pole The overcurrent protected pole has the pole of the overcurrent release, which is referred to as the protected pole below. 3.3.15.2 Overcurrent unprotected pole is a pole that does not have an overcurrent release, but in other respects usually has the same performance as the protective pole of the same RCBO. It is called unprotected pole below.
1 In order to ensure this technical requirement, the unprotected electrode can have the same structure as the protected electrode or adopt a special structure. 2. If the short-circuit capability of the unprotected pole is different from that of the protected pole, it should be marked by the manufacturer. 3.3.15.3 Switched neutral pole is only used to open and close the neutral pole and does not require a pole with short-circuit capability. 3.3.16 uninterrupted neutral uninterrupted neutral uninterrupted nor overcurrent protection, used to connect the current path of the neutral conductor of the equipment. 3.3.17 Maincircuit (of aRCBO) includes all conductive parts of the RCBO in the current path. 3.3.18 Control circuit (of RCBO) controlcircuit (ofaRCBO) A circuit (other than the current path of the main circuit) used for the closing operation or opening operation of the RCBO or for both. Note: This definition includes circuits used in test devices, 3.3.19 Auxiliary circuit (of RCBO) auxiliary circuit (ofaRCBO) All conductive parts of RCBO included in the circuit except the main circuit and control circuit of RCBO. 3.3.20AC type RCBORCBOtypeAC
GB16917.1-1997
An RCBO that can ensure tripping for suddenly applied or slowly rising residual sinusoidal alternating current. 3.3.21A type RCBO RCBOtypeA
RCBO that can ensure tripping for suddenly applied or slowly rising residual sinusoidal AC current and residual pulsating DC current 3.3.22 test device testdevice
Simulated RCBO installed in RCBO A residual current condition device that operates under specified conditions. 3.4 Definitions related to excitation magnitude and range 3.4.1 Rated value ratedvalue
The magnitude specified by the manufacturer for the specific working conditions of the RCBO. 3.4.2 Overcurrent overcurrent
Any current exceeding the rated current.
3.4.2.1 Overload current Overload current occurs in a circuit without electrical damage. Note: Overload current may cause damage if continued for a sufficient period of time. 3.4.2.2 Short-circuit current short-circuit current refers to the overcurrent caused by a fault with negligible impedance between points with different potentials during normal operation. NOTE: Short circuit current may be caused by a fault or by incorrect connections. 3.4.3 Prospective current prospectivecurrent The current flowing in the circuit if each main current loop of the RCBO and the overcurrent protective device (if any) is replaced by a conductor of negligible impedance.
Note: The expected current can also be regarded as an actual current, such as expected breaking current, expected peak current, expected residual current, etc. 3.4.4 Expected peak current prospectivepeakcurrent is the peak value of the expected current during the transient process after turn-on. Note: This definition assumes that the current is connected by an ideal RCBO, that is, its impedance changes from infinity to zero instantaneously. For circuits in which the current can flow through several different paths, such as multi-phase circuits, this definition further assumes that the current flows in all The poles are switched on simultaneously, even if only the current of one pole is considered. 5 (AC circuit) maximum expected peak current maximumprospectivepeakcurrent(ofana.c.circuit) 3.4.5
The expected peak current when the current is turned on occurs at the moment that may lead to the maximum value. Note: For multi-pole circuit breakers in multi-phase circuits, only one pole is considered for the maximum expected bee current. 3.4.6 Short-circuit (making and breaking) capacity: Under specified conditions, RCBO is used to make and carry the AC component of the expected current expressed by the effective value for its breaking time and breaking. 3.4.6.1 Ultimate short-circuit breaking capacity ultimate short-circuit breaking capacity is based on the prescribed test procedures, and its prescribed conditions do not include the breaking capacity of the RCBO for an agreed time under 0.85 times the non-tripping current.
3.4.6.2 Services short-circuit breaking capacity serviceshort-circuit breaking capacity According to the prescribed test procedures, the specified conditions include the breaking capacity of the RCBO for an agreed time under 0.85 times the non-tripping current. 3.4.7 Breaking current: During the breaking process, the current flows through one pole of the RCBO at the moment when the arc is generated. Note: Exchanges are expressed in valid values.
3.4.8 Applied voltage appliedvoltage
The voltage applied between the terminals of one pole of RCBO just before the current is connected. Note: This definition refers to unipolar RCBO. For multipole RCBOs, the applied voltage is the voltage between the RCBO power terminals. 3.4.9 Recovery voltage recovery voltage is the voltage that appears between one pole terminals of the RCBO after the current is broken. Note
1 This voltage can be considered as consisting of two consecutive time intervals. The first time interval appears transient voltage, and then the second time interval only appears the power frequency recovery voltage.
GB16917.1-1997
2This definition refers to unipolar RCBO. For multipole RCBOs, the recovery voltage is the voltage between the RCBO power terminals. 3.4.9.1 Transient recovery voltage transientrecoveryvoltage The recovery voltage within a time period with significant transient characteristics. Note: Depending on the characteristics of the circuit and RCBO, the transient voltage can be oscillatory, non-oscillatory, or both. This voltage includes the voltage of the neutral point displacement of a polyphase circuit.
3.4.9.2 Power-frequency recovery voltage power-frequency recovery voltage is the recovery voltage after the transient voltage phenomenon disappears. 3.4.10 Opening time openingtime
When the RCBO is in the closed position, the time from the moment when the main circuit current reaches the overcurrent release action value to the moment when the arc contacts of all poles separate.
Note: The disconnection time is usually called tripping time. Although strictly speaking, the tripping time is the time interval from the moment when the disconnection time starts to the moment when the disconnection command is irreversible.
3.4.11 arcing time arcingtime
3.4.11.1—pole arcing time arcingtimeofapole is the time interval from the moment when an arc is generated at one pole to the moment when the arc at that pole is finally extinguished. 3.4.11.2 Multipole RCBO arcing time arcing time of a multipole RCBO is the time interval from the moment when the first arc is generated to the moment when all pole arcs are finally extinguished. 3.4.12 Breaktime (incase of overcurrent) Breaktime (incase of overcurrent) In case of overcurrent, the time interval from the opening time of RCBO to the end of the arcing time. Note: This definition is based on GB/T2900.18 Article 6.2.3, 3.4.13 P't (Joule integral) P't (Jouleintegral) The integral of the square of the current within a given time interval (to, ti). P't =
id
3.4.14 Characteristics of I\t of RCBO I\tcharacteristicofaRCBO under specified working conditions, represents the curve of the maximum value of It as a function of the expected current. 3.4.15 Coordinationbetweenovercurrentprotectivedevicesinseries
3.4.15.1 Selectivity limit current (I,) selectivity-limitcurrent (1) Maximum breaking time of the load-end protective device - current characteristics and another The current coordinates of the intersection point of the pre-arc (referring to fuse) or tripping (referring to circuit breaker) time-current characteristics of the protective device. Select
1 Selective limit current is a current limit value: below this value, if there are two overcurrent protection devices in series, the protection device at the load end completes its breaking action in time to prevent another protection The device starts to act (ie ensuring selectivity). —Above this value, if there are two overcurrent protective devices connected in series, the protective device at the load end may not complete the breaking action in time to prevent the other protective device from starting to operate (that is, selectivity is not guaranteed). 21\Characteristics can be used instead of time-current characteristics. 3.4.15.2 Take-over current (Is) is the maximum breaking time of two overcurrent protection devices - the current coordinate of the intersection point of the current characteristics. Note
1 The handover current is a current limit value. Above this value, if two overcurrent protection devices are connected in series, the protection device at the power supply end generally (but not necessarily) provides backup protection for the other protection device. The 2It characteristic can be used instead of the time-current characteristic. GB16917.1-1997
3.4.16 Conventional non-tripping current (Iat) RCBO can carry a specified current value without action for a specified time (agreed time). 3.4.17 Conventional tripping current (I) Conventional tripping current (I) The specified current value that causes the RCBO to operate within the specified time (agreed time). 3.4.18 Instantaneous tripping current is the minimum current value that causes the circuit breaker to operate automatically without intentional delay. 3.4.19 Electrical clearance (see Appendix B) clearance is the shortest distance in air between two conductive parts. NOTE: In determining electrical clearances to accessible parts, the accessible surfaces of an insulating enclosure shall be considered conductive as if the surfaces of the enclosure accessible to the hand or the standard test finger of Figure 3 were covered with a layer of metal foil. . 3.4.20 Creepage distance (see Appendix B) creepagedistance The shortest distance between two conductive parts along the surface of the insulating material Note; when determining the creepage distance to accessible parts, the accessible surface of the insulating material should be considered conductive as if the surface of the enclosure accessible to the hand or the standard test finger of Figure 3 were covered with a layer of metal foil. 3.4.21 The definition of non-operating overcurrents in the main circuit non-operating overcurrent limit value is shown in 3.4.21.1 and 3.4.21.2. Note: In the case of overcurrent in the main circuit, due to the asymmetry of the detection device itself, the detection device may operate even if there is no residual current. 3.4.21.1 Limiting value of overcur-rent in case of a load through a RCBO with two current paths without any fault to the frame or to the ground and no leakage current to the ground. The maximum overcurrent load that can pass through an RCBO with two current loops without tripping it. 3.4.21.2 Limiting value of overcurrent in case of a single phase load through a three-pole or four-pole RCBO when there is no fault to the frame or to the ground and no leakage current to the ground. The maximum single-phase overcurrent that can flow through a three-pole or four-pole RCBO without causing it to operate.
3.4.22 Residualmaking and breakingcapacity Residualmaking and breakingcapacity Under the specified use and working conditions, the RCBO can make, carry its breaking time and can break the AC component value of the residual expected current.
3.4.23 limitingvalue(U,andU,) of the line voltage for RCBO's functionally dependent on line voltage3.4.23.1U
When the line voltage drops, the minimum line voltage value at which the RCBO whose operating function is related to the line voltage can still operate under specified conditions (see 9.17.1).
3.4.23.2U
The minimum voltage value below which the RCBO whose action function is related to the line voltage will automatically disconnect without any residual current.
3.5 Definitions related to the value and scope of the influencing quantity 3.5.1 The influencing quantity influencingquantity may change any amount of the specified action of the RCBO. 3.5.2 The reference value of aninfluencing quantity refers to the influence quantity value related to the characteristics specified by the manufacturer. 3.5.3 Reference conditions of influencing quantities All influencing quantities have reference conditions.
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