JB/T 9864.2-1999 This standard is a revision of ZB J94 012-89 "Test Methods for Breakers for Magnetic Motors". The main changes are as follows: - The impact test in the original standard has been cancelled; - The sweep frequency vibration test has been added. This standard specifies the test methods for the technical conditions of breakers for magnetic motors in JB/T 9864.1. This standard is applicable to the test of breakers for magnetic motors. This standard was first issued in 1989. JB/T 9864.2-1999 Test Methods for Breakers for Magnetic Motors JB/T9864.2-1999 Standard download decompression password: www.bzxz.net

ICS27.020
Machinery Industry Standard of the People's Republic of China
JB/T 9864.19864.2—1999
Magneto breakers
Published on August 6, 1999
National Bureau of Machinery Industry
Implementation on January 1, 2000
[R/T9864.2—1999
This standard is a revision of 2H34012:89 Magneto breakers test method. The main technical content changes of this standard are as follows: The original standard minor impact test is cancelled: The sweep test is added.
This standard replaces 7R1412-89 from the date of implementation. This standard is proposed and coordinated by Tianban Internal Combustion Research Institute. The responsible drafting unit of this standard is Otsu Internal Combustion Engine Research Institute. The main drafters of this standard are: 7 Dexiu, Ben Zhihong, Zhang Naili. This standard was first issued in 1989.
Machinery Industry Standard of the People's Republic of China
Test methods of for magneto breakers
Test methods of for magneto breakers This standard specifies the test methods of JBT9864.1 for motor breakers. This standard is applicable to the test of magneto breakers (hereinafter referred to as breakers). 2 Referenced standards
JB/T9864.2-1999
Replaces ZBJ94012-89
The texts contained in the following standards are used to refer to the non-standard provisions in this standard. When the standard is published, the version shown is valid. All standards are subject to revision. All parties using the standard should discuss the reliability of using the latest version of the following standards. JB/T5140.1—1999
JB.T 9864.1—1999
3 Test instrument conditionsWww.bzxZ.net
Technical conditions for magnetic headphones
Technical conditions for circuit breakers for magnetic motors
During the test, the accuracy of the instrument used shall not be lower than Class 1.5. 4 Test environment
The performance test of the circuit breaker is carried out under the following environmental conditions a) Temperature: 18-28:
b) Humidity: 45%-75%;
sAverage atmospheric pressure: 86-106kPa.
5 Test method
5.1 Appearance and installation dimension inspection
Foreign account: The requirements specified in 3.14 of JB/T9864.1-1999 are carried out by visual method. Installation dimension: The breaker should meet the installation dimension requirements of the magnetic output machine, and the measuring tool is used for inspection. 5.2 Inspection of the coaxiality of the two contact points of the breaker
The coaxiality of the two contact points of the new breaker is checked by measuring tools according to the requirements of 3.12 of JB/T9864.1-1999. 5.3 Inspection of the tension of the breaker points
Connect the breaker to the battery, lamp pool, and hanger as shown in Figure 1. The center of the burner should be located at the contact axis position. At this time, the circuit is connected, the lamp is lit, and then the brick code is increased. When the circuit is disconnected, the mass of the basic code is read and the contact spring is calculated according to the formula ("). Its value is in accordance with the provisions of 3.8 of [R9864.11999: Fetw, + m, ig
In the formula: F The contact spring of the breaker is, N; approved by the National Machinery Industry Bureau in 1999-0B-06 (1)
Implementation on 2000-01-01
m, -- The spring of the hook: kg i
m\, kg:
One-speed shift, 9.8ms.
5.4 Breaker paint resistance
JB/T 9804.2--1999
1-Code: 2-Battery: 3-Bulb: 4-Hook Diagram
Use 500V megohmmeter according to the requirements of 3.7 in JB/9864.1:1999. This test is allowed to run when the product is stable. 5. Check the dielectric strength of the circuit breaker
According to the requirements of 3.6 in IB/T91.11999, in a withstand voltage test with a capacity of up to 0.5kVA, the voltage should be increased to the test value within [.55], and the voltage should be reduced to the rate of 1m. This test is carried out after the product quality is stable. 5. Continuous ignition performance check
The continuous ignition performance check is carried out in the test device 1 shown in Figure 2. Before the test, the circuit breaker is connected with the magneto cam, ignition wire and Install the product on the test device, first adjust the contact between the belts to make it straight, and then adjust the operating current value according to the provisions of Table 1. During the test, check the minimum continuous firing speed according to the requirements of 3.4 of JB/T9864.1-1999. Then increase the speed gradually to the maximum speed, within the specified continuous firing speed range. Check its continuous firing situation, and no misfiring is allowed. Small tests can be carried out when the product quality is stable. 5.7 Sweep frequency vibration test
The breaker must be fixed on the vibration test bench in the correct working position, and be carried out under non-operating conditions according to the requirements of JB section 5[40.1-1999 Ning$.4.4. After the test, there should be no looseness of the breaker parts, riveting, welding and case parts, and the insulation and continuous firing performance checks should be repeated.
JB/T 9864.2—1999
1-electrical device: 2-cam: 3-three-pin electric device: 4-ignition line adjustment: 5-shutdown: 6-battery (12V3: 7-self-contained device Figure 2
magnetotype of breaker stop
breaker short-circuit current A at high speed
5.8 low temperature test
inner rotor
breaker in non-working state 5.9 High temperature test
The circuit breaker is put in a low temperature box from room temperature. When the temperature reaches (.40±3) for 2 hours, it is taken out from the low temperature box immediately and the insulation and continuous ignition performance are checked within 5 minutes. 5.9 High temperature test
The circuit breaker is put in a low temperature box from room temperature in a non-working state. When the temperature reaches (80±2) for 1 hour, it is taken out from the high temperature box immediately and the insulation and continuous ignition performance are checked within 5 minutes. 5.10 Thermal test
The new electrical appliance is placed in a constant temperature and humidity chamber under non-operating state, with the temperature reaching 150±2) and humidity 90%-95%, for 1 hour. When the value decreases, take it out and measure the insulation resistance and reverse ignition performance within 5m. 5.11 Inspection of the covering layer of required parts
The parts of the circuit breaker should be inspected according to the relevant standards as much as possible. 5.12 Contact resistance inspection
The contact resistance of the two points of the circuit breaker is measured with a real arm bridge control meter 2, The items in Table 3 shall be tested before and after cleaning. Ethanol (analytical grade) shall be used as the cleaning agent. The contact surface roughness shall comply with the relevant provisions of 3.11 of B/T9864.1-1999. 5.13 The contact surface roughness of the two points of the circuit breaker shall be tested according to the requirements of 1.9 of B/T9864.1-1999. The surface roughness sample or surface roughness precision measuring instrument shall be used for testing. 8
The second time at the point of closing is the fifth time until
The next time at the point of closing is the first time. Average beat
E
Direct recovery training plate
Melting point open and close five times after measurement
Single point second open and close five times after measurement and
Melting point second close and close five times after measurement
Average position
5.14 Power off fire welding chain strong pursuit measurement
JB/T9864.2--1999
Contact resistance measurement value before cleaning
Table cleaning piece post contact resistance measurement plate value||t t||Use the blade of a special tool (Figure 1) to contact the contact point, and then use a material testing machine (1T) to apply load until it breaks, and read the loaded load value. (2) The calculation of its welding chain strength should comply with the relevant provisions of 3.10 in JBT9864.1-199: q
Find: o
-Contact welding chain strength, MPa;
P Such as the load value when breaking, N;
The breaker can be welded and the spirit, m.
5. 15 Durability test
The durability test of the breaker adopts a pressurized installation test. p
During the test, the breaker is installed on the end motor used for the platform test. The test speed is the maximum speed of the magnetic motor, and it is continuously rotated within the durability test time specified in 3.16 of JBT9864.11999 to ensure that it is within JBT9864.1-1999 Table 1 specifies the three-pin pole pitch continuous firing,
test. After the reverse continuous firing performance inspection, during the test, the power-off medium is not allowed to have any faults. Only the contact is allowed to be dropped once or the contact membrane is adjusted every 50% of the storage. If the magnetoelectric zero, the component has a teaching rate, it should be promptly eliminated and the test should be continued. It is not regarded as a power-off fault. JB/T9864.2-1999
, double teaching diagram
1-1 Oh board; 2-1 blade: 35, 4 breaker can be, 5 lower buy mouth-lower template diagram 3
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