Some standard content:
National Standard of the People's Republic of China
Magnetic switch intrusion detectors
Magnetic switch intrusion detectors subject content and scope of application
GB 15209--94
This standard specifies the human The technical requirements and testing methods of magnetic switches in intrusion alarm systems are the basic basis for the design, manufacture and inspection of magnetic switches.
This standard applies to magnetic switches using reed switches as switching elements used in intrusion alarm systems. 2 Reference standards
GB 10408.1
General technical conditions for intrusion detectors
SJ2081 general technical conditions for reed switches
3 terminology
3.1 magnetic switch magnetic switch
A magnetic switch is a device composed of a switch box and a magnet box. When the magnet box moves to a certain distance relative to the switch box, it can cause the switch state to change and control the relevant circuit surface to send out an alarm signal. 3.2 Magnet box magnetic box
A box component equipped with magnets.
3.3 switch box switch box
A box component equipped with switching elements.
3.4 ??Break gap
The distance between the magnet box and the switch box when the magnet box and the switch box move relative to each other until the switch state changes. 3.5 Contact resistance: The resistance value measured between the terminals of a closed pair of conductive contact groups. 3.6 Randomdead fault refers to a fault that occurs during the closing or opening period of a certain action cycle of the magnetic switch during the life test. This fault can disappear on its own within the action cycle, or can disappear on its own when it is re-operated. 3.7 Dead fault
During the life test, the magnetic switch fails during a certain action. This fault cannot disappear on its own when it is re-actuated. 4 Product Categories
4.1 Magnetic switches can be divided according to the contact form:
H type: moving and closing contacts;
D type: moving and breaking contacts; ||tt ||Z type: conversion contact.
The State Bureau of Technical Supervision approved the implementation on 1995-04-01 on 1994-09-10
661
4.2 Magnetic switches can be divided into three categories according to the separation gap: Category A: greater than 20mm;
Category B: greater than 40 mm;
Category C: greater than 60mm.
4.3 Magnetic switches can be divided into: a. Welding lead-out line type;
b. Terminal crimp type.
5 Technical requirements
5.1 General requirements
GB 15209--94
5.1.1 The reed switch used in the switch box should comply with the regulations of SJ2081. 5.1.2 Magnetic impurities are not allowed to be mixed in the switch box. 5.1.3 The housing of the magnetic switch should be easy to install. 5.2 Appearance and structural requirements
5.2.1 The external dimensions of the magnetic switch should be consistent with the drawings. The surface of the casing should be clean and free of cracks, deformations and obvious scratches. There are signs of proper installation, and the signs should be clear and firm.
The outer shell of the magnetic switch should have a product classification symbol, such as: CKDA means a magnetic switch with a moving-opening contact and a separation gap of greater than 20mm.
5.2.2 The packaging of the magnetic switch should be tight, and the internal structure should not be loose. 5.2.3 The shell should be able to withstand a force of 49N without permanent deformation. 5.2.4 The magnetic switch welding lead wire should be led from the same side, and its length should not be less than 150mm. 5.2.5 The firmness of the terminal posts and lead wires of the magnetic switch shall comply with the requirements of Article 4.1.3 in GB10408.1. 5.3 Performance requirements
5.3.1 Separation gap requirements
Under normal atmospheric conditions, install according to the provisions of the product manual. The separation gap of the magnetic switch should comply with the nominal value specified in the product manual, and Should comply with the provisions of Article 4.2. 5.3.2 Contact resistance requirements
When the magnetic switch is closed, the contact resistance of the contacts under rated load (except for magnetic switches with built-in series resistance) should be less than 0.2. 5.3.3 Insulation resistance requirements || tt||The insulation resistance of the magnetic switch should not be less than 100MQ under normal atmospheric conditions, and should not be less than 10MQ under hot and humid conditions. 5.3.4 Contact overload requirements
The contact load (resistive) of the magnetic switch should comply with the technical conditions of the product. When 150% of the rated load is applied to it at a rate of no more than 10 times per minute The on and off operation should be repeated 50 times and it should be able to work normally. The contact resistance should meet the requirements of 5.3.2. 5.3.5 Demagnetization resistance requirements
The performance of the magnetic material installed in the magnet box should be stable. After testing at a high temperature of 100±2°C for 4 hours, the attenuation of the magnetic induction intensity should not be greater than 20% of the initial value before the test. , the change in the separation gap should not be greater than 25% of the initial value. After returning to normal temperature, the attenuation of the magnetic induction intensity and the change in the separation gap should not be greater than 10% of the initial value. 5.4 Environmental adaptability requirements
The requirements for temperature, heat and humidity, vibration, impact and free fall of the magnetic switch should comply with the requirements of 4.3.2 group and 4.3.3 in GB10408.1.
5.5 Stability requirements
The magnetic switch should not malfunction during continuous operation for 168 hours under normal atmospheric conditions, and the change in the separation gap should not exceed 10%. 5.6 Durability requirements
662
GB 15209-94
The magnetic switch performs on and off operations at rated voltage and rated load current for a total of 6000 cycles. There should be no electricity or mechanical failure. Contact resistance should meet the requirements of 5.3.2.
5.7 Life requirements
Under normal atmospheric conditions, the magnetic switch applies a rated negative pressure to the contacts and performs on and off operations at a rate of no more than 10 times per minute. Its lifespan should not be less than 10° times, no dead failures should occur during the test, and the number of accidental dead failures is allowed to be less than 10 times. After the test, the contact resistance should not be greater than 20.
6 Test methods
6.1 Except for the climate environment adaptability test, all tests should be conducted under the following positive atmospheric conditions: ambient temperature: 15~35℃;
Relative humidity: 45%～75%;
Atmospheric pressure: 86～106kPa.
6.2 Appearance and structural performance test
6.2.1 Appearance inspection
Use a measuring tool with an error not greater than 0.05mm to check the overall dimensions against the drawings. Visual inspection of the appearance should comply with 5.2.1 and the requirements of Article 5.2.2.
Check the length of the lead wire and it should meet the requirements of 5.2.4. 6.2.2 Shell strength test
Place the sample flat, choose the weak side of mechanical strength to face up, and place a steel hemisphere with a diameter of 13.7cm in the center with the spherical side facing down (equivalent to applying a force of 49N) , the action time is 60±2s. Inspection after the test shall comply with the requirements of Article 5.2.3. 6.2.3 The stability test of terminal posts and lead wires shall be carried out according to the method of 5.2.4.2 in GB10408.1. Inspection after testing shall comply with the requirements of Article 4.1.3 in GB10408.1. 6.3 Performance test
6.3.1 Separation gap test
Install the magnetic switch according to relevant regulations and connect it to the test circuit, then gradually remove the magnet box until the contact action produces a state transition, write down this When measuring the distance between the magnet box and the switch box, repeat the test three times and take the minimum value, which shall meet the requirements of Article 5.3.1. 6.3.2 Contact resistance test
The contact resistance of the magnetic switch is tested using the DC voltmeter-ammeter method, using a voltmeter and ammeter with an accuracy of 0.5 and a range of 1.5 times the rated value. The test circuit is shown in Figure 1. Epidemic Pilot
Test electricity:
Figure 1 Contact resistance test circuit
Calculation formula of contact resistance: R-V/I(Q) Test current: Rated load current or 0.05A ;a
Test voltage: - Generally use DC 12V;
b.
When testing, make the switch box close normally and note the voltage drop between the contacts, c.
663
GB 15209-94
d． For changeover contacts: measure the moving contact first, then the moving contact. Take the average of three measurements and the test results should meet the requirements of Article 5.3.2. 6.3.3 Insulation resistance test
The magnetic switch is in the open and closed state respectively. Use a 100V megohmmeter with an accuracy of 1.0 to test all mutually insulated parts. After the test voltage is applied and stabilized for 5 seconds, record the insulation resistance value, which should meet the requirements of 5.3.3. 6.3.4 Overload test
The magnetic switch should be connected to the power supply with the rated voltage according to its contact load, and it should be able to work normally. Then add 150% of the rated load, so that the magnetic switch completes 50 on and off cycles at a rate of no more than 10 times per minute. Inspection shall be carried out after the test. It shall comply with the requirements of Article 5.3.4. 6.3.5 Demagnetization resistance test
After the magnetic switch is left standing for 1 hour under normal atmospheric conditions, predict the magnetic induction intensity at a specified position on the working surface of the magnet box and the separation gap of the magnetic switch. Then put the magnetic switch into a high-temperature box to raise the temperature inside the box to 10100 ± 2°C. After holding the temperature for 4 hours, immediately use a Tesla meter to measure the magnetic induction intensity there at this temperature, and at the same time measure the separation gap of the magnetic switch. . After returning to normal temperature, test the magnetic induction intensity of the magnet box and the separation gap of the magnetic switch again. The test results shall comply with the requirements of Article 5.3.5. Note: The deformation of the magnetic switch housing at high temperatures will not be assessed. 6.4 Environmental adaptability test
The environmental test of the magnetic switch shall be carried out in accordance with the requirements of the group in GB10408.1 4.3.2, high temperature, low temperature, heat, storage, sinusoidal vibration, impact and free drop tests. After each test, the function should be checked immediately. It should be able to work normally. The inspection separation gap should meet the requirements of Article 5.3.1.
6.5 Stability test
Connect the magnetic switch to the test circuit, apply rated load to the contacts, and operate continuously for 168 hours under normal atmospheric conditions. It should work normally. During the test, make and break tests are conducted at least twice a day. Inspection after the test is completed shall comply with the requirements of Article 5.5. 6.6 Durability test
Connect the magnetic switch to the durability test device, apply the rated load to the contacts and conduct the on and off test at a rate of no more than 10 times per minute, and record the number of on and off operations|| tt||The test results shall comply with the requirements of Article 5.6.
6.7 Life test
Connect the test sample to the test device, apply rated load to the contacts, and perform on and off operations at a rate of no more than 10 times per minute. Continuously perform and record the number of on and off operations. The test results and data shall comply with the requirements of Article 5.7 of this standard. 7 Inspection rules
7.1 The inspection rules for magnetic switches shall be implemented in accordance with Chapter 6 of GB10408.1. 7.2 The test items, test sequence and corresponding test methods as well as technical requirements and unqualified classification are specified in Table 1. Table 1
Technical requirements
Serial number
1
2
iti
Project
5.2.1||tt ||Appearance inspection
Shell strength test
5.2.2
5.2.4
5.2.3
Test method
6.2. 1
6.2.2
Unqualified
Classification
c
Identification
Inspection
Group A||tt ||Quality consistency inspection
Group B
Group C
Group D
Serial number
3
5
6
8
9
10
11
12
Project
Terminal and lead wire firmness test
Separation gap
Contact resistance
Insulation resistance
Overload test
Demagnetization resistance test
Environmental test
Stability Test
Durability test
Life test
Technical requirements
5.2.5
5.3.1
5.3.2||tt ||5.3.3
5.3.4
5.3.5
5.4
5.5
5.6
5.7
Note: Those with "" in the table indicate the projects being carried out GB 15209-94
Continued Table 1
Test method
6.2.3
6.3.1||tt ||6.3.2
6.3.3
6.3.4
6.3.5
6.4
6.5
6.6||tt ||6.7
Unqualified
Classification
B
B
B
B
B||tt| |B
B
B
B
Identification
Inspection
V
Group A
Quality consistency inspection
Group B
Group C
Group D
Y
7.3 Inspection rules in addition to the provisions of Chapter 6 of GB10408.1 In addition, two sets of unassembled samples should be sent for each product submitted for inspection, and the model and material of the selected components should be indicated. 8 Requirements for product manuals
In addition to providing technical indicators, wiring diagrams and instructions for use, the product manual of the magnetic switch should also include the following content: the installation location and method of the magnetic switch;
a.| |tt||Precautions and solutions should be provided for magnetic switches that are expected to be installed on ferromagnetic materials; b.
Magnetic switches with built-in series resistors should be marked to avoid confusion. 9 Marking, packaging, transportation and storage
Marking, packaging, transportation and storage shall be carried out in accordance with the provisions of Chapter 7 of GB10408.1. Additional notes:
This standard recommendation is proposed by the Ministry of Public Security of the People's Republic of China. This standard is under the jurisdiction of the National Security Alarm System Standardization Technical Committee. This standard is drafted by the Third Research Institute of the Ministry of Public Security. The main drafters of this standard are Li Xiangfa and Shi Jingshan. 665
2
Unqualified
Classification
c
Identification
Inspection
Group A
Quality consistency inspection
Group B
Group C
Group D
Serial number
3
5
6
8
9
10
11
12
Item
Terminal and lead wire firmness test
Separation gap
Contact resistance||tt ||Insulation resistance
Overload test
Demagnetization resistance test
Environmental test
Stability test
Durability test
Life test
Technical requirements
5.2.5
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.4
5.5
5.6
5.7
Note: "" in the table indicates the items to be carried out GB 15209—94
Continued Table 1
Test method
6.2.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.4
6.5
6.6
6.7
Unqualified
Classification
B
B
B
B|| tt||B
B
B
B
Identification
Inspection
V
Group A
Quality consistency inspection
Group B
Group C
Group D
Y
7.3 Inspection rulesIn addition to complying with the requirements of Chapter 6 of GB10408.1, two sets of unassembled samples should be submitted for each product to be inspected, and the model and material of the selected components should be indicated. 8 Requirements for product manuals
In addition to providing technical indicators, wiring diagrams and instructions for use, the product manual of the magnetic switch should also include the following content: Installation location and method of the magnetic switch;
a.
Precautions and solutions should be provided for magnetic switches that are expected to be installed on ferromagnetic materials; b.
Magnetic switches with built-in series resistors should be marked to avoid confusion. 9 Marking, packaging, transportation and storage
Marking, packaging, transportation and storage shall be carried out in accordance with the provisions of Chapter 7 of GB10408.1. Additional notes:
This standard was proposed by the Ministry of Public Security of the People's Republic of China. This standard is under the jurisdiction of the National Security Alarm System Standardization Technical Committee. This standard was drafted by the Third Research Institute of the Ministry of Public Security. The main drafters of this standard are Li Xiangfa and Shi Jingshan. 665
2
Unqualified
Classification
c
Identification
Inspection
Group A
Quality Consistency Inspection|| tt||Group B
Group C
Group D
Serial number
3
5
6
8| |tt||9
10
11
12
Project
Terminal and lead wire firmness test
Separation gap| |tt||Contact resistance
Insulation resistance
Overload test
Demagnetization resistance test
Environmental test
Stability test
Durability Test
Life test
Technical requirements
5.2.5
5.3.1
5.3.2
5.3.3||tt ||5.3.4
5.3.5
5.4
5.5
5.6
5.7
Note: Those with "" in the table Indicates the project being carried out GB 15209—94
Continued Table 1
Test method
6.2.3
6.3.1
6.3.2||tt ||6.3.3
6.3.4
6.3.5
6.4
6.5
6.6
6.7
Unqualifiedwww.bzxz.net
Classification
B
B
B
B
B
B
B
B
B
Identification
Inspection
V
Group A
Quality consistency inspection||tt| |Group B
Group C
Group D
Y
7.3 Inspection rules In addition to complying with the provisions of Chapter 6 of GB10408.1, each product submitted for inspection must also Two additional sets of unassembled samples should be sent, and the model and material of the selected components should be indicated. 8 Requirements for product manuals
In addition to providing technical indicators, wiring diagrams and instructions for use, the product manual of the magnetic switch should also include the following content: the installation location and method of the magnetic switch;
a.| |tt||Precautions and solutions should be provided for magnetic switches that are expected to be installed on ferromagnetic materials; b.
Magnetic switches with built-in series resistors should be marked to avoid confusion. 9 Marking, packaging, transportation and storage
Marking, packaging, transportation and storage shall be carried out in accordance with the provisions of Chapter 7 of GB10408.1. Additional notes:
This standard recommendation is proposed by the Ministry of Public Security of the People's Republic of China. This standard is under the jurisdiction of the National Security Alarm System Standardization Technical Committee. This standard is drafted by the Third Research Institute of the Ministry of Public Security. The main drafters of this standard are Li Xiangfa and Shi Jingshan. 665
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.