This section applies to AC 50Hz or 60Hz, rated voltage does not exceed 440V, rated current does not exceed 125A, and the operating function is independent of or related to the power supply voltage for household or similar purposes, mainly for electric shock hazard protection without overcurrent protection. The residual current operates the circuit breaker. GB 16916.1-1997 Residual current circuit breakers (RCCB) without overcurrent protection for household and similar purposes Part 1: General rules GB16916.1-1997 Standard download and decompression password: www.bzxz.net

GB16916.1—1997 | Rules" and its first revision: IEC1008-1Amendment1:1992 and second revision: IEC1008-1Amendment2:1995. The technical content and writing format are completely consistent with IEC1008-1:1990. By equivalently adopting IEC standards, my country's standards for residual current-operated circuit breakers without 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 and Appendix E 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: Zhou Jigang, Sun Zhu, Zhou Hailin, and Lu Yinghua. GB16916.1-1997
IEC Preface
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 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 IEC Technical Committee 23E "Household circuit breakers and similar devices" of Technical Committee 23 "Electrical Accessories". The text of this standard is based on the following documents. June Law Procedure
23E(CO)62
23E(CO)63
23E(CO)64
23E(CO)68
23E (CO)96
Voting Report
23E(CO)76
23E(CO)77
23E(CO)78
23E(CO) 85
23E(CO)117
February Law Procedure
23E(CO)79
23E(CO)80
23E(CO)81
23E(CO)82
23E(CO)83
23E(CO)84
23E(CO)98
23E(CO)89
Details of the vote to approve this standard can be obtained from the vote report listed in the table above. Voting report
23E(CO)100
23E(CO)101
23E(CO)102
23E(CO)103
23E(CO )104
23E(CO)105
23E(CO)109
23E(CO)111
Introduction
National Standard of the People's Republic of China|| tt||Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB)
Part 1: General rules
Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) Part 1: General rules
GB16916.1—1997
idt IEC 1008-1:1990
This part includes the definitions, technical requirements and tests of all types of RCCBs. For specific types, this section shall apply together with the following relevant parts:
Part 2.1: Applicability of general rules to RCCBs whose operating functions are independent of line voltage. Part 2.2: Applicability of general rules to RCCBs whose operating functions are dependent on line voltage. 1 Scope of application
This standard applies to products with AC rated voltage not exceeding 440V, rated current not exceeding 125A, whose operating function is independent of or related to the line voltage, and which are mainly used for household or similar purposes for electric shock hazard protection. Residual current operated circuit breaker without overcurrent protection (hereinafter referred to as RCCB).
These devices are intended primarily for indirect human contact protection. The exposed conductive parts of the equipment are connected to a suitable earth electrode. They may also be used to provide protection against fire hazards caused by ground fault currents that persist due to the failure of overcurrent protective devices to operate. RCCBs with a rated residual operating current not exceeding 30mA can also be used as supplementary protection measures when electric shock protection measures fail. This standard is applicable to devices that can simultaneously perform functions such as detecting residual current, comparing the residual current value with the residual operating current value, and disconnecting the protected circuit when the residual current exceeds the residual operating current value. Note
1 The technical requirements of RCCB comply with the general requirements of IEC755. RCCB is mainly used by non-professionals and does not require maintenance. They can be submitted for certification. 2IEC364 gives the installation and use regulations of RCCB. 3RCCBs within the scope of this standard are suitable for use 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 4: For RCCBs with protection levels higher than IP20, special structures may be required. The following products must be supplemented with special requirements: residual current-operated circuit breakers with overcurrent protection (see GB16917) RCCBs installed into household and similar general-purpose plugs, sockets or appliance connectors or RCCBs specially used in combination with them.
Note 5: Currently, for RCCBs installed in plugs and sockets or RCCBs dedicated to plugs and sockets, the technical requirements of this standard can be used together with GB2099.1 (when applicable).
State Bureau of Technical Supervision approved 1997-06-28 for implementation on 1998-09-01
GB16916.1—1997
The technical requirements of this standard apply to normal environmental conditions (see 7.1 ). For RCCB used in areas with severe environmental conditions, necessary technical requirements can be supplemented.
RCCBs using batteries are not included in the scope of this standard. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were 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 Household and similar plugs and sockets Part 1: General requirements GB/T2423.4-93 Basic environmental test procedures for electrical and electronic products Test Db: Alternating damp heat test method GB/ T2424.2-93 Basic Environmental Test Procedures for Electrical and Electronic Products Damp Heat Test Guidelines GB/T2900.18-92 Electrical Terminology Low-voltage Electrical Appliances GB4208-93 Enclosure Protection Level (IP Code) GB5169.4-85 Fire Hazard Test for Electrical and Electronic Products Glow Wire Test methods and guidelines GB/T5465.2-1996 Graphical symbols for electrical equipment GB6829-1995 General requirements for residual current-operated protectors GB7676.1-87 Direct-acting analog indicating electrical measuring instruments and their accessories Definition and general requirements GB16917.1-1997 Residual current-operated circuit breakers with overcurrent protection for household and similar purposes IEC38-1983 standard voltage
IEC50(151): 1978 International Electrotechnical Vocabulary (IEV) Chapter 151: Electromagnetic devices IEC364-4- 443: 1990 Electrical Installations in Buildings Part 4: Safety Protection Chapter 44: Overvoltage Protection Section 443: Protection of Electrical Installations in Buildings from Atmospheric or Operating Overvoltages Part 5: Selection of Electrical Equipment: Chapter 53 ：Switchgear and control
IEC364-5-53:1986
Equipment
IEC755: 1983 General requirements for residual current operating protective devices 3 definitions
For this standard For purposes of this purpose, the following definitions apply. Unless otherwise specified, the terms "voltage" and "current" used in this standard are valid values. Note: See Appendix IB for symbol assembly.
3.1 Definition of current flowing into the earth from live parts 3.1.1 Earth fault current earthfaultcurrent The current flowing into the earth due to an insulation fault. 3.1.2 Earth leakage current earthleakagecurrent is the current flowing into the earth from live parts of the equipment without an insulation fault. 3.1.3 Pulsating direct current pulsating direct current In each rated power frequency cycle, the angle is used to express the pulsating waveform current with a current value of 0 or not exceeding 0.006A DC during a period of time of at least 150°.
3.1.4 Current delay angle αcurrentdelayangleα is the time expressed in angle that lags the starting moment of current conduction through phase control. 3.2 Definition of energizing quantity for residual current circuit breaker energizingquantity
3.2.1 Excitation quantity
applied to an RCCB alone or together with other such quantities to enable it to complete its function under specified conditions Electrical excitation amount. www.bzxz.net
GB16916.1-1997
3.2.2
energizing input quantity
energizinginput-quantity
causes the RCCB to operate when applied under specified conditions amount of incentive. These conditions may include, for example, the activation of certain auxiliary elements. 3.2.3 Residual current (I) residualcurrent (1) The vector sum of the instantaneous values ??of the current flowing through the RCCB main circuit (expressed by the effective value). 3.2.4 Residual operating current residual operating current is the residual current value that enables the RCCB to operate under specified conditions. 3.2.5 Residual non-operating current Residual non-operating current is the residual current value at which the RCCB does not operate under specified conditions when this current is at or below this current. 3.3 Definition of the action and function of the residual current circuit breaker 3.3.1 The residual current operated circuit breaker can connect, carry and break current under normal operating conditions, and can operate when the residual current reaches the specified value under specified conditions. Mechanical switching appliance with open contacts.
3.3.2 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 be used to perform overload and/or short-circuit protection functions. 3.3.3 Residual current operated circuit-breaker with integrated overcurrent protection (RCBO) Residual current operated circuit-breaker with integrated overcurrent protection (RCBO) Residual current operated circuit breaker that can be used to perform overload and/or short circuit protection functions. 3.3.4 RCCB whose action function is independent of line voltage. RCCB's functionally independent of line voltage is an RCCB whose detection, judgment and breaking functions are independent of line voltage. Note: This type of device is defined in 2.3.2 of IEC755 as a residual current device without auxiliary power supply. 3.3.5 RCCB whose action function is related to the line voltage. RCCB's functionallydependentonlinevoltage whose detection, identification and breaking functions are related to the line voltage. Note
1 This definition partially includes the definition of residual current device using auxiliary power supply in 2.3.3 of IEC755. 2 Obviously, in order to detect, identify and break, line voltage must be applied to the RCCB. 3.3.6 Switching device is a device used to connect or break the current in one or several electrical circuits. 3.3.7 Mechanical switching device mechanical switching device uses detachable contacts to close or break one or several electrical circuits. 3.3.8 Free trip RCCBtrip-freeRCCB is an RCCB whose movable contacts can return and remain in the open position even if the closing command is still maintained if the opening operation is performed after the closing operation starts.
Note: In order to ensure normal breaking of the current that may be turned on, the contacts may have to reach the closed position instantaneously. 3.3.9 Breaktime of RCCB is the breaking time of RCCB from the moment when the residual operating current is suddenly applied to the moment when all polar arcs are extinguished. elapsed time. 3.3.10 Limiting non-actuating time limiting non-actuating time is the maximum delay time for applying a residual current value greater than the remaining non-actuating current to the RCCB without causing the RCCB to operate. 3.3.11 Delay type RCCB time-delayRCCB is specially designed to correspond to a given residual current value and can reach a predetermined limit of non-driving time. 3.3.12 Closed position closedposition GB16916.1—1997
The position that ensures the predetermined continuity of the RCCB main circuit. 3.3.13 Open position openposition
The position that ensures a predetermined electrical gap between the open contacts of the RCCB main circuit. 3.3.14-pole pole
That part of the RCCB 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 that hold the poles together and make the stages move together. 3.3.15 The switchedneutralpole is only used to open and close the neutral line and does not require a pole with short-circuit capability. 3.3.16 The main circuit (ofaRCCB) of the main circuit (RCCB) includes all conductive parts of the RCCB in the current path. . 3.3.17 Control circuit (of RCCB) controlcircuit (ofaRCCB) A circuit (other than the current path of the main circuit) used for the closing operation or opening operation of the RCCB or for both. Note: This definition includes circuits used in test equipment. 3.3.18 Auxiliary circuit (RCCB) auxiliary circuit refers to all conductive parts of the RCCB included in the circuit other than the main circuit and control circuit of the RCCB. 3.3.19AC type RCCBRCCBtypeAC
An RCCB that can ensure tripping for suddenly applied or slowly rising residual sinusoidal alternating current. 3.3.20A type RCCBRCCBtypeA
RCCB that can ensure tripping for suddenly applied or slowly rising residual sinusoidal alternating current and residual pulsating DC current, 3.3.21 test device testdevice
installed in the RCCB A device that simulates the residual current conditions of an RCCB operating 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 RCCB. 3.4.2 Non-operatingovercurrentsinthemaincircuit non-operating overcurrent limit value is defined in 3.4.2.1 and 3.4.2.2. Note: When an overcurrent occurs 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. 3.4.2.1 Limiting value of overcurrent in case of a load through a RCCB with two current paths without any fault to the frame or to earth and without leakage current to earth can flow through a RCCB with two current paths The maximum overcurrent load of two current loops RCCB without causing it to operate. 3.4.2.2 limiting value of overcurrent in case of a single phase load through a three-pole of four-pole RCCB when there is no fault to the frame or to the ground and no leakage current to the ground. The maximum value of a single-phase overcurrent load that flows through a three-pole or four-pole RCCB without causing it to operate. 3.4.3 Residual short-circuit withstand current The maximum value of the residual current that can ensure the operation of the RCCB under specified conditions. , greater than this value, the device may suffer irreversible changes.
3.4.4 Prospective current The current that would flow in the circuit if each main current loop of the RCCB and the overcurrent protective device (if any) were replaced by a conductor of negligible impedance.
Note: The expected current can also be regarded as an actual current, for example; expected breaking current, expected peak current, expected residual current, etc. 3.4.5 Makingcapacity
GB16916.1-1997
The AC component value of the expected current that the RCCB can connect under the specified use and working conditions and at the specified voltage. 3.4.6 Breaking capacity breakingcapacity RCCB is the AC component value of the expected current that can be broken under the specified use and working conditions and at the specified voltage. 3.4.7 Residual making and breaking capacity residual making and breakingcapacity Under the specified use and working conditions, RCCB The value of the AC component that is capable of making, carrying its off time and the residual expected current that is capable of breaking.
3.4.8 Limit short-circuit current conditional short-circuitcurrent The AC component value of the expected current that an RCCB protected by a suitable series short-circuit protective device (hereinafter referred to as SCPD) can withstand under specified use and working conditions. 3.4.9 Limit residual short-circuit current conditional residual short-circuitcurrent The AC component value of the residual expected current that an RCCB protected by a suitable series SCPD can withstand under specified use and operating conditions.
3.4.10 limiting value (U, and U,) of the line voltage for RCCB's functionally dependent on line voltage3.4.10.1U
When the line voltage drops, the minimum line voltage value at which the RCCB whose operating function is related to the line voltage can still operate under specified conditions (see 9.17.1).
3.4.10.2U,
The minimum voltage value below which the RCCB whose action function is related to the line voltage will automatically disconnect without any residual current.
3.4.11It (Joule integral) F't (Jouleintegral) The integral of the square of the current within a given time interval (ta, ti). eda
I't
fe
3.4.12 Recovery voltage recovery voltage is the voltage that appears between one pole terminals of RCCB after the current is broken. Note
1 This voltage can be considered to be composed 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.
2This definition refers to unipolar RCCB. For multi-pole RCCBs, the recovery voltage is the voltage between the RCCB power terminals. 3.4.12.1 Transient recovery voltage transientrecoveryvoltage The recovery voltage within a time period with significant transient characteristics. NOTE Depending on the characteristics of the circuit and RCCB, the destate voltage can be oscillatory, non-oscillatory or both. This voltage includes the voltage of the neutral point displacement of a polyphase circuit.
3.4.12.2 Power-frequency recovery voltage power-frequency recovery voltage The recovery voltage after the transient voltage phenomenon disappears. 3.5 Definitions related to the value and range of influence 3.5.1 Influencing quantity Any quantity that may change the specified action of the RCCB. 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 ReferenceconditionsofinfluencingquantitiesAll influencing quantities are reference values
3.5.4 Range of influencing quantitiesrangeofaninfluencingquantityGB16916.1—1997
When other influencing quantities are reference values, you can A range of influencing values ??that makes the RCCB operate under specified conditions. 3.5.5 Limit range of influence quantity extremerangeofaninfluencingquantity Within this range of influence quantity, RCCB is only subject to spontaneous reversible changes, but does not have to meet any technical requirements. 3.5.6 Ambient air temperature ambient air temperature is the temperature of the air around the RCCB determined under specified conditions (for an RCCB installed in an enclosure, it refers to the air outside the enclosure). 3.6 Definitions related to terminal blocks
Note: This definition may be revised when the work of Subcommittee 23F on terminal blocks is completed. 3.6.1 Terminal block terminal
Terminal block is a conductive component of RCCB that can be reused for electrical connection with external circuits. 3.6.2 Screw-type terminal screw-type terminal is used to connect a conductor and subsequently detach this conductor, or for the mutual connection of two or more detachable conductors, the connection of which is directly or indirectly connected with each other. Kind of screws or nuts to complete. 3.6.3 Pillar terminal: The wire is inserted into a hole or cavity, and the screw terminal is pressed by the end of the screw. The tightening pressure can be applied directly by the screw end or through a Is exerted by a transition element which exerts pressure at the end of the screw. Note: An example of a post-type terminal block is shown in Figure IC1 of Appendix IC. 3.6.4 Screw terminal screw terminal A screw terminal where the conductor is fastened under the screw head. The tightening pressure can be applied directly from the screw head or through a transition part such as a washer, plywood or a locking device. Note: An example of a screw terminal is shown in Figure "C2" of Appendix 1C. 3.6.5 Screw terminal is a screw terminal in which the wires are fastened under the nut. The tightening pressure can be applied directly by a suitably shaped nut or through A transition part such as a washer, a clamping plate or an anti-loosening device is applied
Note: An example of a screw terminal is shown in Figure IC2 of the Appendix IC. 3.6.6 Saddle terminal conductors pass through two or more. Screw-type terminal with screws or nuts fastened under the saddle plate. Note: An example of a drum terminal is shown in Figure IC3 of Appendix 1C. 3.6.7 Lug terminal uses a screw or nut to fasten the cable connection. Screw terminals or bolt terminals for blades or busbars Note: See Figure IC4 of Appendix IC for examples of lug terminals. 3.6.8 Screwless terminal Screwless terminal is used to connect a wire and then remove the wire, or to connect two or more detachable wires to each other. The connection is made directly or indirectly through springs, wedge blocks, eccentric wheels or conical wheels, etc., and no special processing of the wire is required except stripping the insulation.
3.6.9 Self-tapping screw
tappingscrew
A screw made of a material with higher mechanical strength that is screwed into a hole in a material with lower mechanical strength. The screw is made into a tapered thread, and the inner diameter of the thread at the end is conical. The thread produced by the screw action can only be reliably formed after the screw is rotated a sufficient number of times to exceed the thread of the cone part. 3.6.10 Thread forming tapping screw thread forming tappingscrew has a self-tapping screw with a continuous thread, and its thread does not have the function of cutting material from the hole. Note: An example of a self-drilling screw formed by extrusion of the thread is shown in Figure 1. 3.6.11 Thread cutting self-drilling screw thread cutting tapping screw GB16916.1-1997
A self-drilling screw with a discontinuous thread, whose thread has the function of cutting material from the hole. Note: An example of a thread cutting self-drilling screw is shown in Figure 2. 3.7 Operating conditions
3.7.1 Operation operation
The conversion of the moving contact from the open position to the closed position or vice versa Note: If a distinction must be made, the operation in the electrical sense (i.e., making and breaking) is called the opening and closing operation, while the operation in the mechanical sense (i.e., closing and opening) is called the mechanical operation.
3.7.2 Closing operation closing operation The operation of the RCCB from the open position to the closed position. 3.7.3 Opening operation opening operation The operation of the RCCB from the closed position to the open position. 3.7.4 Operating cycle operating cycle
The continuous operation of converting from one position to another and returning to the starting position. 3.7.5 Sequence of operations Specified continuous operations with specified time intervals. 3.7.6 Clearance (see Appendix B) The shortest distance in the air between two conductive parts. Note: To determine the clearance for accessible parts, the accessible surface of the insulating enclosure should be considered conductive, as if the surface of the enclosure that can be touched by the hand or the standard test finger of Figure 3 is covered with a layer of metal foil. 3.7.7 Creepage distance (see Appendix B) The shortest distance along the surface of the insulating material between two conductive parts. Note: To determine the creepage distance for accessible parts, the accessible surface of the insulating enclosure should be considered conductive, as if the surface of the enclosure that can be touched by the hand or the standard test finger of Figure 3 is covered with a layer of metal foil. 3.8 Test
type test
3.8.1 Type test
A test conducted on one or more electrical appliances manufactured according to a certain design to show that the design meets certain technical requirements. 3.8.2 Routine tests
Tests performed on each appliance being manufactured and/or completed to determine whether it complies with certain standards. 4 Classification
RCCBs are classified as follows:
4.1 Classification according to the mode of operation
Note: Different types are selected according to the requirements of IEC364-5-53. 4.1.1 RCCB whose operating function is independent of the line voltage (see 3.3.4). 4.1.2 RCCB whose operating function is related to the line voltage (see 3.3.5). 4.1.2.1 Automatically open with or without delay when the line voltage fails (see 8.12) a) Can automatically reclose when the line voltage is restored: b) Cannot automatically reclose when the line voltage is restored. 4.1.2.2 Cannot automatically disconnect in case of line voltage failure a) Can trip in case of line voltage failure if a dangerous situation occurs (e.g. due to ground fault) (technical requirements are under consideration); b) Can not trip in case of line voltage failure if a dangerous situation occurs (e.g. due to ground fault). Note
1b) The selection of RCCB in item b) shall be in accordance with the conditions of 532.2.2.2 of IEC364-5-53. 2Ia<0.03A RCCBs whose operating function is related to the line voltage and cannot automatically disconnect in case of line voltage failure must meet the requirements of item a).
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