This standard specifies the general requirements for residual current operated protectors (leakage protectors). Includes: characteristics, normal working conditions, structural and performance requirements, verification of characteristics and performance, and marking requirements. This standard applies to residual current action protectors with AC rated voltage up to 380V and rated current up to 200A (hereinafter referred to as residual current protectors). GB 6829-1995 General requirements for residual current action protectors GB6829-1995 standard download and decompression password: www.bzxz.net

Introduction
National Standard of the People's Republic of China
General requirements for residual current operated protective devices
GB6829—1995
replaces 6829—86|| tt||This standard is equivalent to the International Electrotechnical Commission IEC755 "General Requirements for Residual Current Operating Protective Devices" and its amendments IEC755Amend.1 (1988-06) and IEC755Amend.2 (1992-05). This standard adopts all the contents of IEC755, but makes appropriate corrections and supplements to the rated making and breaking capacity based on the actual situation in my country. IEC755 stipulates that the minimum rated making and breaking capacity of residual current protectors with a rated current of 50A and below is 500A, while this standard supplementally stipulates that the minimum rated making and breaking capacity of residual current protectors with a rated current of 10A and below is 300A ( See Appendix D). This is determined based on the actual situation in our country. At present, some areas in our country, especially rural areas, consume relatively little electricity and still use a large number of 10A residual current protectors. According to the investigation of the operation of rural residual current protectors by the working group for the preparation of this standard, about 76% of rural household residual current protector installation sites are expected to have short-circuit currents below 300A. Therefore, a 10A residual current protector is added to this standard, with a minimum rated making and breaking capacity of 300A. For residual current protectors greater than 10A, their rated making and breaking capabilities are still consistent with IEC755. This is conducive to the promotion and application of residual current action protectors, and does not reduce the safety level of the product.
The operating characteristics of the residual current protector specified in this standard are determined based on different protection requirements. In order to achieve the required level of protection, the residual current protector must be installed and operated in accordance with relevant installation regulations, such as GB13955-92 "Installation and Operation of Leakage Protectors".
1 Subject content and scope of application
This standard specifies the general requirements for residual current action protectors (leakage protectors). Includes: characteristics, normal working conditions, structural and performance requirements, verification of characteristics and performance, and marking requirements. This standard applies to residual current action protectors with AC rated voltage up to 380V and rated current up to 200A (hereinafter referred to as residual current protectors).
The main function of the residual current protector specified in this standard is to provide indirect contact protection against fatal personal electric shock. Residual current protectors with a rated residual operating current not exceeding 0.03A can also be used as supplementary protection for direct contact when other protection measures fail, but they cannot be used as the only direct contact protection. Residual current protectors also protect against electrical fires caused by ground fault currents. The residual current protector in this standard refers to a device that can simultaneously detect the residual current, compare the residual current with the reference value, and disconnect the protected circuit when the residual current exceeds the reference value (such as residual current circuit breaker). device) or a combined device (such as a residual current protector consisting of a residual current relay and a low-voltage circuit breaker or low-voltage contactor). For electrical appliances that can only perform the above two functions but cannot disconnect the protected circuit (such as residual current relays and residual current alarm devices, etc.), in addition to supplementing the technical requirements, the basic requirements related to this standard can also be adopted. For residual current protectors with a rated voltage greater than 380V but not more than 1200V and a rated current exceeding 200A, the basic requirements specified in this standard can also be adopted.
State Bureau of Technical Supervision approved 1995-04-06 for implementation on 1996-01-01
2 cited standards
GB6829--1995
Protection level of low-voltage electrical enclosures|| tt||GB/T4942.2--93
GB2423.4-81 Basic Environmental Test Procedure for Electrical and Electronic Products Test Db Alternating Damp Heat Test Method GB5169.4-85 Fire Hazard Test for Electrical and Electronic Products Glow Wire Test Method and guideline GB/T2900.18-92 Electrical terminology for low-voltage electrical appliances GB4027--84 Determination method of tracking index and tracking resistance index of solid insulating materials under humid conditions GB10963-89 Circuit breakers for household and similar places GB14048.2-93 Low-voltage switchgear and control equipment low-voltage circuit breaker JB6525-92 Electrical installation rail
GB485984 Basic measurement method of anti-interference characteristics of electrical equipment 3 terms, symbols, codes
3.1 Terminology||tt ||Except for the nouns and terms supplemented by this standard, the rest should comply with the relevant terms and their definitions in GB/T2900.18. The "current" and "voltage" used in this standard are effective values ??unless otherwise specified. 3.1.1 indirect contact indirectcontact Contact between a person or livestock and an exposed conductive part that becomes live under a fault condition. 3.1.2 Direct contact directcontact
Contact between people or livestock and live parts.
3.1.3 Residual current The effective value of the instantaneous value vector sum of the current passing through the main circuit of the residual current protector. 3.1.4 Residual current operated protective devices are mechanical switching appliances or combination appliances that can automatically disconnect the circuit when the residual current reaches or exceeds a given value under specified conditions. 3.1.5 Residual current circuit breakers are mechanical switching appliances that are used to connect, carry and break current under normal working conditions and to open the contacts when the residual current reaches a specified value under specified conditions.
3.1.6 Residual operating current Residual operating current is the residual current that causes the residual current protector to operate under specified conditions. 3.1.7 Residual non-operating current Residual non-operating current is the residual current in which the residual current protector does not operate under specified conditions. 3.1.8 Residual current protective devices without auxiliary source The operation of residual current protective devices without auxiliary source has nothing to do with the auxiliary excitation amount. 3.1.9 Residual current protective devices with auxiliary source The operation of residual current protective devices with auxiliary source is related to the auxiliary excitation amount. 3.1.10 The breaking time of the residual current protector break-time of residual current protective device is the time from when the residual operating current is suddenly applied to when it is cut off by the protection circuit. 3.1.11 Limiting non-actuating time limiting non-actuating time is the maximum delay time that applies a specified residual operating current value to the residual current protector without causing the residual current protector to operate. 3.1.12 Time delay residual current protector timedelayresidualcurrentprotectivedevices corresponds to a residual current protector whose specified residual operating current value can reach a predetermined limit inoperative time. 3.1.13 Residual current protector test device testdeviceofaresidualcurrentprotectivedevice In order to check whether the residual current protector can operate normally, a device that simulates a residual current to cause the residual current protector to operate. 3.1.14 Prospective current prospectivecurrentGB6829-1995
The current that may flow in the circuit when each pole of the residual current protector is replaced by a conductor with 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. 3.1.15 Residual making and breaking capacity residual making and breaking capacity: The expected residual current value that the residual current protector can turn on under specified use and performance conditions, withstand and can break during the breaking time.
3.1.16 Limit residual short-circuit current conditional residual short-circuit current The residual current protector protected by the specified short-circuit protective device (SCPD), under the specified use and performance conditions, can withstand the expected residual during the short-circuit protective device's operating time. current value. 3.1.17 Limit short-circuit current conditional short-circuitcurrent The expected current value that the residual current protector protected by the specified short-circuit protective device (SCPD) can withstand under the specified use and performance conditions during the operation time of the short-circuit protective device. . 3.1.18 Limiting value of the operating voltage of the auxiliary source: limiting value of the operating voltage of the auxiliary source When the auxiliary power supply voltage drops, the minimum value of the auxiliary power supply voltage that the residual current protector can still operate under specified conditions. 3.1.19 Pulsating direct current pulsating direct current In a rated power frequency cycle, the electrical angle represents a pulsating waveform current with a current value of 0 or no more than 0.006A for a period of at least 150°.
current delay angle a
3.1.20 Current lag angle α
The time expressed in electrical angle that delays the starting moment of current conduction due to phase control. 3.1.21 Smooth direct current smoothdirectcurrent A direct current without ripples.
Note: When the ripple coefficient is less than 10%, it can be regarded as a current without ripple. 3.2 Symbol code
I. Rated current
1. Residual current
Rated residual operating current
Ian
Iano
U.bzxZ.net
U..
Rated residual non-operating current|| tt||Rated voltage
Rated voltage of auxiliary power supply
Rated making and breaking capacity
Im
Iam
Ine
Rated residual connection Making and breaking capacity
Rated limited short-circuit current
Iee
Rated limited residual short-circuit current
Auxiliary power supply operating voltage limit value
U car||tt| |Current lag angle
a
SCPD short circuit protection appliance
IP shell protection level
4 classifications
4.1 Classification according to operation mode
4.1.1 Residual current protector without auxiliary power supply. 4.1.2 Residual current protector using auxiliary power supply 4.1.2.1 Residual current protector that can automatically disconnect when the auxiliary power supply fails. GB6829—1995
4.1.2.2 Residual current protectors that cannot automatically disconnect when the auxiliary power supply fails. 4.2 Classification according to installation type
4.2.1 Fixed installation and fixed wiring residual current protectors. 4.2.1.1 Screw-mounted residual current protector. 4.2.1.2 Rail-mounted residual current protector. 4.2.2 Removable residual current protector with cable (connected to the power supply via a removable cable). 4.3 Classification according to the number of poles and current loops
4.3.1 Single-pole two-wire residual current protector. 4.3.2
Two-pole residual current protector.
3 two-pole three-wire residual current protector.
4.3.3
4.3.4
4.3.5
4.3.6
Three-pole residual current protector.
Three-pole four-wire residual current protector.
Four-pole residual current protector.
Note: Single-pole two-wire, two-pole three-wire and three-pole four-wire residual current protectors all have a neutral wire that directly passes through the detection element and cannot be disconnected. 4.4 Classification based on protection function||tt| |4.4.1 Residual current protectors with only residual current protection function. Residual current protector with overload protection. 4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
Residual current protector with short circuit protection. Residual current protector with overload and short-circuit protection. Residual current protector with overvoltage protection. Residual current protector with multi-functional protection (such as under-voltage, phase failure, over-current, over-voltage, etc.). 4.5 Classification according to the adjustability of the rated residual operating current 4.5.1
Residual current protectors with unadjustable rated residual operating current. 4.5.21
Residual current protector with adjustable rated residual operating current. Residual current protector that can be adjusted in stages. 4.5.2.11
4.5.2.2 Continuously adjustable residual current protector. 4.6 Classification according to wiring method
4.6.1 Residual current protector with screw or bolt wiring. 4.6.2 Plug-in residual current protector.
4.7 When the residual current contains a DC component, according to the operating characteristics of the residual current protector, it is classified 4.7.1: AC type residual current protection that can reliably trip the AC sine wave residual current applied or slowly rising. device. 4.7.2 A type A residual current protector that can reliably trip sudden or slowly rising AC sine wave residual current, pulsating DC residual current and pulsating DC residual current by adding 0.006A smooth DC current 5 Characteristics ||tt| |5.1 Overview of characteristics
The characteristics of the residual current protector should be described by the following items (if applicable): installation type;
a.
b.||tt| |c.
d.
e.
f.
Number of poles and current loops;
rated value;
remainder When the current contains a DC component, the type of residual current protector is determined according to the operating characteristics; the auxiliary power supply type (if any) and the working condition of the residual current protector when the auxiliary power supply fails: enclosure protection level (different from IP2LX); GB6829 -1995
g matching types of short-circuit protection appliances (applicable to residual current protectors without short-circuit protection). 5.2 Rating value
5.2.1 Rated current (I.)
The current that the residual current protector specified by the manufacturer can carry under the specified uninterrupted working system. The priority value of the rated current is:
610,16,20,25,32,40,5063,80,100,125,160,200A. 5.2.2 Rated residual operating current (Iam) The residual operating current value that the residual current protector must operate under specified conditions specified by the manufacturer. The priority values ??of the rated residual operating current are: 0.006, 0.01, 0.03, 0.05, 0.1, 0.3, 0.5, 1, 3, 5, 10, 20A. 5.2.3 Rated residual non-operating current (Ian) The residual current value specified by the manufacturer that the residual current protector must not operate under specified conditions. The priority value of the rated residual non-operating current is 0.5Ian. If other values ??are used, it should be greater than 0.51Ian. Note: For pulsating DC residual current, the residual non-operating current value is related to the current lag angle α (see 7.2.2.1). 5.2.4 Rated voltage
The voltage value related to the characteristics of the residual current protector (especially the short-circuit characteristics) specified by the manufacturer. The priority value of rated voltage is:
220,380V.
5.2.5 Rated frequency
The power supply frequency used when designing the residual current protector. This frequency is related to other characteristic values. The priority value for rated frequency is 50Hz.
5.2.6 Auxiliary power supply rated voltage (U.)
The auxiliary power supply voltage value related to its operating function under specified conditions specified for the residual current protector. The priority value of the rated voltage of the auxiliary power supply is:
DC 12,24, 48, 60, 110, 220V;
a.
b AC: 12, 24, 36, 48, 220, 380V. 5.2.7 Rated making and breaking capacity (1.)
5.2.7.1 The rated making and breaking capacity of the residual current protector with short-circuit protection, such as the part where the residual current protector performs the making and breaking function of the main circuit. When circuit breakers are used in households and similar places, they should comply with the requirements of GB10963. If a low-voltage circuit breaker is used as the part of the residual current protector that performs the making and breaking function of the main circuit, it should comply with the requirements of GB14048.2. 5.2.7.2 The priority value of the rated making and breaking capacity of the residual current protector without overcurrent protection is shown in Table 1, and the minimum value of the rated making and breaking capacity is shown in Table 2.The corresponding power factors are shown in Table 3. Short circuit test current priority value
Table 1
Short circuit test current Im, lam, Ine, l priority value A
500
1000
1500|| tt||3000
4500
6000
10000
2000c
50000
I.
A||tt ||I.≤50
50
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