GB 16916.1-2003 Residual current operated circuit breakers (RCCB) for household and similar purposes without overcurrent protection Part 1: General rules
Some standard content:
All technical contents of this part are mandatory. Foreword
GE16916.12003
GB16916 Residual current operated circuit breakers (RCCB) for household and similar purposes without overcurrent protection> are divided into three parts: - Part 1: General principles
Part 2:1: General principles for RCCBs whose operating function is independent of the load voltage; - Part 2.2: Applicability of the operating function to RCCBs whose operating function is related to the line voltage. This part is the first part of GB16916, corresponding to IEC51008-1, 1595 Residual current operated circuit breakers (RCCB) for household and similar purposes without overcurrent protection Part 1: General principles 3 (2nd edition, 1996) (English version) and IEC61103-1: 1996 Amendet.1 (20n2-05). This part is consistent with TEC6108-1, 1996. The following are the requirements for the overall effect: In this part, for RCCBs with a function related to the voltage of 03A and automatic opening when the voltage between the two ends of the voltage fails, the technical requirements for the standard action when the power supply voltage drops to 5V mentioned in GB16916.11997 are retained. Therefore, the following requirements of 4.1.2.2 are added: "Note 2. The test method is carried out according to the relevant requirements of B6%29. - In order to be consistent with GB16917.1 (IEC5100911596), the symbol of Type S RCCB is added to the content of the marking of small RCCBs in Chapter 6 of this part, and it is required to be able to obtain the status after installation. - In order to be consistent with GB16917.1 (IE C61009-1:1996) will be consistent with this part. In the fifth part of this part, the content that small RCCR should at least be marked with is added with the symbol of AC type or A type RCH. It can be marked on the back or front of the RC, as long as it can be seen before installation.
Part I adds the test procedure and test quantity requirements of the relay specified in Appendix E in the test sequence and test quantity of the certification test in Appendix A. The test procedures of other certification tests are more complete, so the test procedure H and its finished product number and the unit grade judgment mark are added in Table A.1, Table A2 and Table A.3 of Appendix A respectively. - Part I adds the minimum T, rated value and quantity of group 3 in Table A.3 of Appendix A compared with TFC6100R-1:1996.F test procedure. In the G test procedure, a group of 3 products with a minimum rated value and a maximum rated value are cancelled. We think it is more reasonable because the maximum rated value and the minimum rated value products should be tested respectively in the short-circuit test, while the reliability test only needs to test the maximum rated value products. In this part, the note under Table A, 3 of the time-bearing A is changed to "If there is only one I, these products do not need to be tested because the short-circuit test should be carried out on the products with the maximum rated current and the minimum rated current respectively, which has little to do with the "product".
This part recommends GH15915.1-1937 Residual current operated circuit breakers without overcurrent protection for household and similar use (RCC Part 1, General Rules 3 This revision mainly follows E C6193-16 and IEC61008-1:199641. The main changes of this part compared with GB16916.1-1997 are as follows: This part adds several steps between 5 and 500A residual current operating voltage to verify the operating characteristics. Accordingly, the standard values of breaking time and non-actuating time in Table 1 are modified by the test method in 9.3.2.
—In the sixth part of this part, the symbol of S-type RCCB is added to the minimum content that small RCCB should be marked. It is required to be visible after installation.
The symbol of AC type or A type RB is added to the minimum content that small RCCB should be marked. It can be marked on the back or face of RCCB, as long as it can be seen before installation. This part classifies the fault tripping resistance of RCCB into ICCB with normal fault tripping resistance and RCCB with enhanced fault tripping resistance. It requires that RCCB should have sufficient tolerance to the surge current to ground flowing through the capacitor load of the equipment and the flashover of the equipment; S-type RCCB should have sufficient fault tripping resistance to the current to ground flowing through the flashover of the equipment. The corresponding performance requirements and test methods are specified in Chapter 8 and Chapter 9 respectively. This part stipulates that the general type RCCB with Ian10mA should be able to withstand the ringing wave current test with a peak value of 25A without false operation. CB159161-1597 stipulates that the general type RCCB with I>10mA does not need to undergo any test to prove fault tripping resistance. This part makes a modification to the SCPD used in the short-circuit test and stipulates that the general SCPD can be used as a short-circuit current tester. .The fuse has been properly set. The minimum value of the product and I when the fuse is 10A has been added, and the corresponding test methods have also been modified. In addition, the SCPI for the IF short-circuit test has been added as a consideration for manufacturers when selecting SCPD. The follow-up test procedure for the IFCC has been added to the vehicle part. In order to ensure the stable quality level of the product, the manufacturer must formulate a follow-up inspection procedure for the manufacturing process. In the appendix, an example of the follow-up procedure used in the manufacture of KCC is given. This appendix can be used as a guide for manufacturers to formulate procedures and organizations to maintain the quality level of products. This part specifies the terms and definitions, technical requirements and tests for various types of RCCBs. When used for specific types of RCCBs, this part is in accordance with Part 2.1 of GB1691.21-197 for residual current operated circuit breakers (RCCBs) without overcurrent protection for use and similar purposes. Applicability of RCB for circuit breaker 3 and Part 2.2 of GB1691.22-19 Residual current trip circuit breaker (RCCB) for similar purposes without overcurrent protection, general provisions for applicability of RCCB with action function related to line voltage are used together. Appendix A, Appendix B, Appendix C, Appendix D and Appendix E of this part are normative appendices. Appendix IA, Appendix D, Appendix D, Appendix IE and Appendix Y of this part are informative appendices. This part is issued by China Electrical Equipment Industry Association. This part is also under the jurisdiction of the National Technical Committee for Standardization of Voltage Breakers. This part was drafted by Shanghai Electric Science Research Institute. The drafting units of this part are: Scheide Electric (China Investment Co., Ltd., Beijing ABB Low Voltage Electric Co., Ltd., SIEMENS (China) Co., Ltd., Zhengjiao Group Co., Ltd., Jilixi Electric Co., Ltd., Hujiang High-control Electric Co., Ltd., Shanghai Second Switch Factory, Suimen Shun Wanyu Electric Industry Co., Ltd. This part is mainly composed of: Zhou Jicai, Yi Yanmu. Participants in the drafting of this part: He Xiaoda, Gao, Bao Zhangyao, Haidong Gong Xianfeng, Gong Fang, Zhang Zheng, Jianqi, Yang Pinhui, Mei Xiaobei 1 Applicable scope.
Residual current operated circuit breakers (RCCB) without overcurrent protection for household and similar purposes
Part 1: General rules
GB16916.1—2003
This part is applicable to residual current operated circuit breakers (hereinafter referred to as RCCB) without overcurrent protection for household or similar purposes with a rated voltage of 50Hz or 60Hz and a rated current not exceeding 440V (rating current not exceeding 12A, and the operating function is independent of the power supply voltage or is related to the power supply voltage, which are mainly used for household or similar purposes for protection against shock hazards
RCCB is used to indirectly protect people, and the exposed conductive parts of the equipment should be connected to a suitable earthing pole. They can also be used to protect against fire hazards caused by ground fault chains that persist due to the non-operation of overcurrent protection devices. RCCBs with a rated residual operating current of no more than 3CmA can also be used as a supplementary protection measure when other electric shock protection devices fail. This part applies to devices that can simultaneously perform the functions of detecting residual current, comparing the measured residual current value with the residual operating current value, and disconnecting the protective circuit when the residual current exceeds the residual operating current value. 1: Technical requirements for RCCBs are based on the requirements of GB5829. They are not required to be used by non-professionals and do not require maintenance. The new use regulations of RCCBs are in ECE036A, Note 3. This part is applicable to the old version and can be considered as suitable for use in Figure 8.1.3) When the power supply is prone to excessive overvoltage (for example, the power supply is introduced through an overhead load), special protection measures can be adopted [such as the use of standard devices see 51
General type RCB with faulty tripping means that the surge voltage (caused by operating state overvoltage or commercial inductance) produces load current in the equipment without flashover.
S-type RB has sufficient faulty tripping ability even when the surge voltage causes flashover and generates key current. It is usually installed behind a new type of RCCD and connected in common mode. 5: For ROCBs with protection level higher than 1120, special structures may be required. The following products must add special requirements: - Residual current operated circuit breakers with overcurrent protection (see (B16917) "RCCBs specially used with plugs and sockets for household and similar general purposes" RCCBs specially used with them for plugs and sockets. This part can be combined with G B2000.1 (for use).
The technical requirements of this part are intended for normal environmental conditions (see 7.1). For KCXB used in areas with severe environmental conditions, necessary technical requirements may be supplemented.
RCCH using batteries is not included in the scope of this part. 2 Normative references
The clauses in the following documents become the clauses of this part through the reference of the first part of GB 15916. For references with a date, all subsequent amendments (not included) shall apply. The contents of the referenced documents are not applicable to this part. However, the parties who have reached an agreement based on this part shall investigate whether the latest versions of these documents can be used. For undated referenced documents, the latest versions of the referenced documents shall apply.
GB156-1993 Standard voltage (neyIE60038:1983) G2099.1-1996 Household and similar plug sockets - Part 1, General requirements (eqv60884-1:1994) 1
GB 16916. 12003
CB/T2423.4-1993 Basic test specification for electronic products: Alternating damp heat test method (IEC 60068-2-30:1980)
GBT2424.21993 Basic test specification for electronic products: Alternating damp heat test method (IEC 60068-2-30:1980)
GBT2424.21993 Basic test specification for electronic products: Alternating damp heat test method (IEC 60068-228:1993)
GB/T2900.18-1993 Electrical low voltage electrical appliances (IEC 60529-15-41:1584)120R-1993 External protection grade (IP code) (IEC 60529:1939) GB/T5169.101997 Fire hazard test method for electronic products: General rules for hot wire test method (IEC 60695 2 1/0:1994)
GB/T5465.2-1396 Graphic symbols for electrical equipment (idl1EC:60417:1994)GR629-1995 Requirements for residual current operated protectors (e0TEC60755, 28.3)GB/T7676 (all parts) 159: Direct acting indicating electrical measuring instruments and their accessories (idtEC60051)G B16917.1—2003 Residual current operated circuit breakers with overcurrent protection for household and similar applications (RCBO) Part 1 General rules id1EC61009.199)
GR16895.4—1997 Electrical installations of buildings Part 5: Reversal and installation of electrical circuit breakers Chapter 53: Relative voltage supply and control equipment (idtIEC60364-5-53,1994)) GB1 6895.12-2001 Electrical installations of buildings Part 4: Safety protection Chapter 44, Overvoltage protection Section 443 Overvoltage or operating overvoltage protection (idtIEC60364-4-443.96) GB/T16927.2-1997 Commercial voltage or testing technology Part: Measuring system (e[EC60060-2.1991) GB1819-2001 Residual current operated companion device (RCD) for household and residential use Electromagnetic compatibility (idtIEC615431995EC60033198 Standard voltage E60050-151:1978 International Electrotechnical Commission (TFV) Chapter 1.1: Electrical and magnetic devices TECG036 Electrical installations of thin buildings 3 Terms and definitions For the purpose of this part, the following definitions apply. Unless otherwise specified, the terms "voltage" and "current" used in this standard are effective values. Note: For a compilation of symbols, see Appendix IH. 3.1 About the current flowing into the earth from live parts 3.1.1 Ground fault current The current flowing into the earth due to an insulation fault: 3.1.2 Ground fault current The current flowing into the earth from the live parts of the equipment due to an insulation fault. 3.1.3 Ground fault current The current flowing into the earth from the live parts of the equipment due to an insulation fault. 3
Pulsating direct current palsatingdirectcurreatPulsating waveform current with a current value of 0 or less than 0.006A within a time interval of 150° during each rated working period.
Current with a back angle cureatdelayangketThe time expressed in degrees after the start of electrical conduction is completed through phase control: 3.2 Definition of residual current circuit breaker excitation pulse 3.2.1
Micro excitation quantity energlzlngquantlty||tt| | Safety B16916, 12003
Applied alone or together with other such quantities to an RCCB, the electrical excitation which enables it to perform a common function under specified conditions.
Excitation input energlzingLupnt-qaantlty Excitation which causes the RCCB to operate when applied under specified conditions. These conditions may, for example, include the need for some auxiliary components. 3.2.3
Reskdualcent (I
The sum of the instantaneous values of the current flowing through the main circuit of the RCCB [expressed as effective values). 3.2. 4
Residual operating circuit breaker Residual current operating current The residual current that causes the RCCB to operate under specified conditions: 3.2.5
Residual non-operating circuit breaker Residual current value that causes the RCC to operate under specified conditions at normal current or lower than this current. 3.3 Definition of residual current circuit breaker action and function 3.3.1
Residual current operated circuit breaker Residual current operated circuit breaker A mechanical switching device that can connect, switch and disconnect under normal operating conditions and can disconnect the contacts when the residual current reaches a specified value under specified conditions, Residual current operating circuit breaker without overcurrent protection (RCcH) protection (RCt.h) cannot be used to perform overload and/or short circuit protection functions. 3.3.3
Residual current operated circuit breaker with overcurrent protection (RCBO) rekidueleprrentoperatedcireait-hreakerwithintegral overcorren1pmntectinn (ACHO) can be used to perform overload and short circuit protection functions. 3.3.4
RCCBRCc'rfpnk:tiniallyfndepeadeatnfIinevoltage its control and measurement, RCCE with breaking and disconnecting functions independent of power supply voltage: This analogy is defined in GB6625155 71,! as a chain protector without auxiliary detection. 3.3.5
RCCB whose action function is related to line voltageRCCB's Hunetionally dependent line voltage and whose detection, discrimination and breaking functions are related to line voltageRB, Note 1; the definition part includes 3.1 of G1109291995.9 Definition of residual protection for auxiliary power supply, Note 2, In order to determine the voltage on the RCC, 3.3.6
Switching device
A device used to connect or disconnect one or more electrical circuits GR 16916. 1—2003
Mechanical switchgear mechanicalwitehingdevice A switching device that uses separable contacts to close or open one or more electrical circuits, 3.3.8
Free trip RCCR Irlp-fre After the RCCE
closing operation starts, if it is carried out (automatic> breaking and according to the operation, the quick closing command is generated, and its moving contact returns to and remains in the open position of the RCB
. In order to ensure that the breaking current can be reduced, the fuse must be maintained for the quick closing of the RCCB. 3.3.9
BCCB breaking time breakmeafaRCCB is the time from the moment when the residual operating current is applied to the instant when all the poles are extinguished, 3.3.70
limit non-acting time HmftingDoa-actlatlngtime applies a residual output value greater than the residual non-acting current to the RCCB without causing the RCOCB to operate. The maximum delay time, 3.3.11
time-delay RCCH
Time type X
RCCB specially designed to achieve a certain limited trip time for a given residual current value. 3.3.12
Losing position lostpodtlan
A position that ensures the predetermined connectivity of the RCCH main circuit, 3.3.13
Disconnection position pen pndtinn
A position that ensures that there is a certain electrical inductance between the disconnect terminals of the RCCB main circuit, 3.3. 14
Pole
A component that is connected to the R of two independent conductive paths of the main circuit, and has the function of connecting and disconnecting the main circuit itself. It does not include those components that are used to hold the poles together and enable the devices to operate. 3.3.15
Switch the neutral slowly
swiltuicd arutr poke
used only to switch the neutral pole without short-circuiting capability. 3.3.16
(RCCB>main station
madnclrenli(ofaRCCB
includes all conductive parts of the RCCB in the single circuit, 3.3.17
(RCCB control circuitnntrolcineit(ofaRCCB) used for closing or opening operation of the RCB or for both circuits (except the main circuit 1. NOTE This definition includes the circuit used for testing devices-3.3. 18
(RCCB) auxiliary circuit Hudlfryivutt (afaRCCH) All conductive parts of the RCCB included in the circuit other than the main circuit and control circuit of the RCCB, 3.3.19
AC type RCCBRCCBTYPeAC
RCCB that can trip for residual sinusoidal current surges due to positive or rising currents, 4
A type RCCB ACCB TYPE A
:CB16916,1—2003
for residual current surges due to known or rising currents and residual direct current surges 3.3.21
Test device est devlce
a device to simulate the residual current conditions under which the RCCB will operate under specified conditions in the KCCB 3.4 Definitions related to auxiliary quantity values and specifications 3.4. 1
Rated value
The value specified by the manufacturer for the specific operating conditions of the RCC. 3.4.2
Aon-operating overcurrent in the main circuitThe definition of the non-operating overcurrent limit standard is given in 3.4.2.1 and 3.4.2.2. In the event of an overcurrent in the main circuit, the detection device may operate even if there is an overcurrent fault due to the fault of the detection device itself. 3.4.21
Limiting value of overcurrent when a RCCB with two current paths passes through a thretpole or foar-pole In the event of any fault in the frame and no earth leakage current, the maximum value of the overcurrent load that can pass through a RCCB with two current paths without operating. 3.4.2 2
Limiling value of overcurrent when a single-phase load passes through a thretpole or foar-pole When RCcg has no friction or earth leakage and no earth leakage current, a three-pole network can flow through the maximum single-phase overcurrent load that does not cause the RCCR to operate. 3. 4.3
Residual short-circuit current The maximum value of the residual current that can ensure the RCCR to operate under the specified conditions. When it is greater than the residual value, the device may suffer irreversible damage.
Expected current prospective cument
If the RCC is equipped with an overcurrent protection device (if any) each main circuit is replaced by a conductor with negligible impedance, the current flowing in the circuit,
In the case of; the expected current can also be regarded as an actual current, such as: expected breaking current, reduced peak current, average current, etc. 3.4. 5
Making capacity
The alternating 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
The AC component value of the expected current that the RCCB can disconnect under the specified use and working conditions and at the specified voltage. 3, 4.7
Residual switching and breaking capacity reaidualmaklngandbreaklngcopacity The alternating component value of the residual prospective current that the RCCD can connect, withstand and break under specified use and working conditions.
GB16916.1—2003
Controlled short-circuit current CAmditieaalbor't-clrenltemnrent The alternating component value of the prospective current that the RCCB protected by a combined short-circuit protection device (hereinafter referred to as SCPD) can withstand under specified use and working conditions. 3.4.9
Forced residual short-circuit current conditional residual-circuit cperent The value of the AC component of the residual prospective current that a RCCB protected by a suitable single-connected SCPLD can withstand under the specified conditions of use and operation.
The minimum voltage (U and U,) of the RCCB whose operating function is related to the supply voltage for operation is related to the supply voltage for operation under specified conditions [317.1]
3.4. 10.2
The voltage below which the RCB whose operating function is related to the supply voltage automatically disconnects in the absence of any residual current. 3.4,11wwW.bzxz.Net
Ft)F: (orkiategrl) the average current within a given time interval (>, Fr-
recovery voltage
the voltage appearing between one terminal of the RCCB after a power outage, 3.4.121
Eiraeslent. This voltage appears between the two terminals of the RCCB after a power outage, 3.4.122. This voltage appears between the two terminals of the RCCB after a power outage, 3.4.123. recoweryvotage
recovery voltage
recovery voltage within the time with significant transient energy characteristics. Note: In terms of the characteristics of the RCCB, the reduction voltage can be measured, or non-recovery voltage or both. This voltage includes the recovery voltage of the neutral point of the multiphase circuit.
3, 4. 12.2
power-frequency recovery voltage power-tregueacyrerpreryllage recovery voltage after the transient voltage phenomenon has disappeared. 3.5 Definitions related to the value and range of influencing quantities 3.5.1
influencing quantity innloencing qpantity
the time quantity that can be used to adjust the specified operation of the RCCB, G
reference value of influencing quantity referelce valna f amn influencing quaotityinfluencing quantity related to the characteristics specified by the manufacturer: 3.5. 3
reference condition of influencing quantity reference condition of influencing quantity all influencing quantities are reference values.
range of influencing quantity range of an influencing quantity GE 16916. 1—2003
when all other influencing quantities are reference values + a range of influencing quantity values within which the RCCB operates under specified conditions. 3.5.5
exirrme rungfunnflmencingqutnllty range of influence quantities
Within this range of influence quantity values, the RCB is only subject to spontaneous reversible changes but does not have to comply with any requirements of this standard. 3.5.6
The ambient air temperature amblentxirlenperwtere The resistance of the air surrounding the RCCB under given conditions (for RCLB residing in an enclosure, it refers to the air outside the enclosure.
3.6 Definitions related to terminals
When the relevant requirements of 23E are upgraded to the corresponding enclosure, the definitions of these definitions may be slightly modified. 3.6.1
Terminals
The wiring terminals are the conductive parts of the ROCB that are used to make electrical connections to external circuits. 3.6.2
Screw-type terminals are used to connect a conductor and subsequently remove the conductor. They are used to connect two or more detachable conductors to each other. The connection is made directly or indirectly by means of various screws or nuts. 3.6.3
Pillar terminals are terminals in which the conductor is inserted into a hole or cavity: the end of the screw is used to compress the conductor. The tightening pressure can be applied directly by the end of the screw or by a transition element that applies pressure from the end of the screw. Note: For an example of a stud connection, see Figure C.1 in Appendix IC. 3.6.4
For screw terminals and screw terminals, the conductor is fastened to a screw-type terminal under the head of a screw. The tightening pressure can be applied directly by the head of the screw through a flat component (such as a washer, plate or loose device). The pressure of the stud terminal is shown in Figure C.1 of Appendix IC. 3.6.4
For screw terminals and stud terminals, the conductor is fastened to a screw-type terminal under the head of a screw. The tightening pressure can be applied directly by the head of the screw through a flat component (such as a washer, plate or loose device). The force may be applied by a suitably shaped nut or by a through-wrap fitting, such as a full circle, plate or a ten-way bolt, see Figure 23.6.6
shaped wire terminal
The wire is forced through two or more connections or fastened in a butterfly-shaped connection under a drum-shaped plate. Note: For examples of screw terminals, see Figure C, 2. Threaded terminals: Screw terminals or screw terminals that use a screw to fasten cable lugs or busbars, 3.6.8 Threadless terminals: Terminals for connecting a conductor that can subsequently be removed or for interconnecting two or more detachable conductors. The connection is completed directly or indirectly through a plate, a block, an eccentric wheel or a wheel. Except for the "brake", there is no special work on the early line.
Self-tapping screws tappingsr.rew
A screw made of a material with a higher deformation force and inserted into a hole with a material with a lower deformation resistance than the screw. The screw is made into a male-shaped thread, and the inner thread of the end thread is conical. The effect of the screw action can only be reliably formed after the screw needle has been rotated a sufficient number of times to produce a thread with a certain degree of thread. 3.6.10
Self-tapping screws with extruded threads ihrendformingluppingsrrew Self-tapping screws with continuous ends, whose threads do not have the function of cutting material from the hole. Note: The main screw with extruded threads is shown in Figure 1. 3.6. 11
Oxygen cutting self-drilling screws are self-drilling screws with a threaded connection. The screw has the function of cutting the material from the hole. Note: An example of this self-drilling screw is shown in Figure 2. 3.7 Operation
Operation
The conversion of the screw head from the open position to the closed position or vice versa. Note: It is necessary to distinguish between the operation in the electrical sense (connection and disconnection) and the operation in the nuclear sense (closing and breaking). The closing operation is the operation of converting the open position to the closed position. 3.7.3
Open operation
Opening operation
RCC is the operation of converting the open position to the closed position. 3.7. 4
Placement cycle
Continuous operation from one position to another and then back to the starting position. 3.7.5
Operation sequence
syuenreafuperatiuns
Continuous operation with a specified time interval between two specified operations. 3.7.6
Electrical isolation (see Appendix H) Clcaranee The frequency quotient of the two conductive parts in the air, 8
GB 16916.1—2003
Note: To determine the electrical performance of inductive and non-conductive parts, the exposed surfaces shall be considered conductive, as if the exposed surfaces were a metal plate or the surface of the test plate shown in Figure 1. 3.7.7
The shortest distance between two electrical components along the surface of the screen material (see Appendix B): Note: To determine the electrical performance of inductive and non-conductive parts, the exposed surfaces shall be considered conductive, as if the exposed surfaces were a metal plate or the surface of the test plate shown in Figure 1. 3.8 Type test
Type test
A test performed on an electrical appliance of a certain design to demonstrate that the design complies with certain technical requirements. 3.8.2
Gauge test
tmulinelests
Tests carried out on a product under manufacture and/or after manufacture to determine whether it complies with these standards. 4 Classification
RCCBs are classified as follows:
4.1 Classification according to the mode of action
Note: According to G1655, different types can be selected according to the requirements of +. 4.1.1 RCCBs whose action function is independent of the power supply voltage (see 3.3.4>). 4.1.2 RCCBs whose action function is related to the power supply voltage <see 3.3.5). 4.1.2.1. When the power supply voltage drops, it can be disconnected automatically with or without delay (see 8.12). When the power supply voltage is restored, it can be automatically reclosed. 4.1.2.2. When the power supply voltage drops, it cannot be disconnected. When a dangerous situation occurs (such as due to a ground fault), it can be tripped (technical requirements are under consideration): b. When the power supply voltage drops, it can be tripped if a dangerous situation occurs (such as due to a ground fault). Note 1: h. The CB must comply with the provisions of 533.2.2.2 of G616695.4-097. The RCCB that cannot be automatically disconnected when the power supply voltage fails must comply with the requirements of the RCCB1 of the 879 standard. At present, the requirements of 7.2.2.3.2 of GB682-1995 should be implemented, and the requirements of K.5.2 of GB682-185 should be replaced. 4.2 According to the installation type, RCCBs with fixed control lines and RCCBs with electric cords can be divided into RCCBs with fixed control lines and RCCBs with electric cords (the device itself is connected to the power supply). 4.3 According to the number of poles and current circuits, it is divided into: Single-circuit RCCB: Second-floor RCCR: Second-floor RCCR: Beijing 43rd RCCB: Gate RCCB 4.4 According to the possibility of residual operating current, it is divided into: RCCB with only one rated residual operating current value GE16916.1—2003, which has several divided into: RCCB with adjusted residual operating current setting (see note of 5.2.3): 4.5 According to the performance of preventing false tripping under impulse voltage, it is divided into RCCB with normal false tripping resistance (general type enhanced false tripping resistance in Table 1) RCCB with desuppression capability (S type in Table 1> 4.6 According to the working conditions when there is direct slag, it is divided into AC, RCCH, 4.7 According to the residual current, it is divided into delayed and non-delayed RCB: - general purpose type; KCH with delay, H selective S type, 4. According to the protection against external influences, it is divided into closed RCCB without a proper outer shell and non-enclosed RCCB (it needs to be equipped with a proper shell for quick use). 4.9 According to the installation method, it is divided into surface-mounted RCCB; KCCB with a bag; Panel RCCB. Also called core plate type. |tt||Note: These types can be installed on the installation. 4.10 According to the wiring method, the RCCB is divided into: terminal type and mechanical installation-independent RCCB: RCCB with mechanical installation-related method, such as: RCCB, plug-in type, RCCB with screw-in type. |tt||Note: Some RCCs can only be used in the electrical distribution using plug-in type or assembly format, and the negative terminal is usually suitable for wiring 5HCCB characteristics
5.1 Summary of characteristics
The characteristics of the RCCB are specified in the following terms: installation type (see 4.2)
\-pole and number of electrical circuits (see 4.3);
| rated full F, (see 5.2.2)
rated residual operating current T (see 5.2.3); - rated residual non-operating current 1 (see 5.2.4): rated current (ton 5.2.12
rated rated current 0.5.2.5)
rated making and breaking capacity 1m (see 5.2.) - rated residual making and breaking capacity 1m (ton 5.2.7)! 1m, if applicable (see 5.2.8); operating characteristics when the residual current has a 6 current component (see 5.2.9) - insulation coordination, including electrical clearance and root distance (see 5.2.10 - protection degree (see (:154208):
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