This standard specifies the test items, test conditions and test methods for engineering machinery headlights. This standard applies to all types of lighting and signal lights used in engineering machinery. JB/T 7159-1993 Test methods for engineering machinery headlights JB/T7159-1993 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7159-93
Engineering Machinery Headlights
Published on November 21, 1993
Test Methods
Implemented on March 1, 1994
Ministry of Machinery Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Engineering Machinery Headlights
Subject Content and Scope of Application
Test Methods
This standard specifies the test items, test conditions and test methods for engineering machinery headlights. This standard applies to all types of lighting and signal lights (hereinafter referred to as headlights) used on the outside of engineering machinery. 2 Reference standards
GB2423.10
GB4599
3 Terminology
3.1 Sealed lamps
Basic environmental test procedures for electric and electronic products Test A: Low temperature test method Basic environmental test procedures for electric and electronic products Test B: High temperature test method Basic environmental test procedures for electric and electronic products Test Ea: Impact test method JB/T 715993
Basic environmental test procedures for electric and electronic products, Test Fc: Probing (sinusoidal) test method Photometric performance of automotive headlamps
Lights with sealed light groups.
3.2 Semi-enclosed lamps
For lamps with semi-enclosed lamp groups,
4 Test items
Insulation resistance test;
Photometric test;
Temperature test;
Vibration resistance test;
Impact test
Water resistance test;
Dust resistance test.
Test equipment and conditions
5.1 Insulation resistance test
This test is carried out at room temperature and humidity with the bulb removed. 5.2 Photometric test
The equipment and conditions for the photometric performance test shall comply with the provisions of GB4599. 5.3 Temperature resistance test
5.3.1 This test consists of a low-temperature test and a commercial temperature test. 5.3.2 The test shall be carried out in a test box (or indoors), and the test equipment shall comply with the provisions of GB2423.1 and GB2423.2. 5.3.3 Test conditions shall be in accordance with the provisions of Table 1.
Approved by the Ministry of Machinery Industry on November 21, 1993
Implemented on March 1, 1994
Rated voltage V
5.4 Vibration resistance test
Provisions.
JB/T715993
Test voltage V
Continuous lighting
This test shall be carried out on a vibration test bench in the three directions of up and down, left and right, and front and back. The test equipment shall comply with the test voltage of GB2423.10 and the provisions of Table 1.
The alarm status of the test lamp shall be classified in accordance with the provisions of Table 2. Table 2wwW.bzxz.Net
5.5 Impact resistance test
Track type, for lights installed on the front of the vehicle by the main engine Tire type, for lights installed around the driver's seat by the main engine 5.5.1 This test shall be conducted on a cam free-fall automatic impact test machine, and the test equipment shall comply with the provisions of GB2423.5. 5.5.2 The test voltage shall be the same as that specified in Table 1.
5.6 Water resistance test
This test shall be conducted in a water resistance test chamber. The structure and dimensions in the test chamber shall comply with the provisions of Figure 1 and Table 3. Abdominal water pipe
49 water holes
5.7 Dust test
Vertical axis
12.512.512.5
Diameter size
5.7.1 This test should be carried out in a closed dust test box with a length, width and height of 900~1200mm2
JB/T7159-93
5.7.2 In the dust test box, except for the necessary sample clamping device, there shall be no device to prevent the dust from flying freely, and the dust shall be able to gather near the blowing hole.
5.7.3 The test conditions shall be as specified in Table 4, and the test voltage shall be the same as that in Table 1. Table 4
Putong Portland Cement
5kg (fully dried)
Ambient temperature
20±15
6 Test methods and qualified conditions
End resistance test
Relative humidity
Dust control
Each 15min
Blowing for 10s
Density (diffusion close to stable)
Above 60000
Lighting method
Intermittent lighting
Test time
Use a 500V high resistance meter to measure the resistance between the terminal and the lamp holder. The value should be above 1MQ (after the water resistance test, it should be above 0.5MQ).
6.2 Lighting test
6.2.1 The test voltage shall be in accordance with the provisions of Table 1.
The screen should be placed vertically at a distance of 10m from the bulb to be measured, and the geometric axis of the bulb should pass through the HV point. 6.2.2
The measurement points of luminous intensity are shown in Figure 2.
6.2.4 The luminous intensity should comply with the provisions of Table 5. Measuring point
10U-10R
10U-10L
10U-20R
10U-20L
Minimum luminous intensity
Measuring point
5U-10R
SU-10L
SU-20R
5U-20L
Angle (\)
Minimum luminous intensity
Measuring point
Minimum luminous intensity
Measuring point
SD-10L
5D-10R
5D-20L
Heat resistance test
Minimum luminous intensity
The test shall be carried out as specified in Table 6.
JB/T715993
Continued Table 5
Measurement point
SD-20R
10D-10L
10D-10R
Environmental temperature C
-40±2
Minimum luminous intensity
Measurement point
10D-20L
10D-20R
Minimum luminous intensity
Test time (lighting) h
During and after the test, check whether the sample works normally in low and high environments. The material parts should not have defects such as softening, cracking, deformation, and light change. The closed-type headlights should not have bursting, stagnant air and other significant defects. 6.4 Pressure resistance test
6.4.1 Obtain the common detection frequency according to the provisions of Table 7. Table 7
Actuating frequency Hz
Sweep cycle min
Vibration speed m/s
Note, the sweep cycle is the time required for the whole vehicle to go back and forth between the upper and lower limit excitation rates. 6.4.2 If there is no resonance point, the vibration durability test shall be carried out in accordance with the provisions of Table 8. Table 8
Actuating frequency Hz
Vibration acceleration m/s\
Standard amplitude (amplitude)
Test time h
Note; if it is very different from the actual vehicle vibration rate, its value can be changed to make it close to the actual vehicle vibration rate, the previous bureau
6.4.3 If there is a resonance point, the test of up and down, left and right, and front and back shall be carried out for 0.5h each according to the resonance point and the full amplitude specified in Figures 3 and 4, and then the test specified in Table 9 shall be carried out.
Vibration frequency 66.6Hz
33.3 66.7111.1166.7 333.3 666.7Figure 3
Vibration frequency Hz
JB/T715993
Vibration frequency 166.7z
16.733.366.7111.1166.7333.3HzH
Vibration rate
Vibration acceleration
Note: ①When the reported rate is the same as the reported rate in the table, the vibration frequency in the table can be changed, up and down
Vibration frequency
Test time h
②When it is very different from the vibration frequency of the actual vehicle, its value can be changed to make it the vibration rate of the actual vehicle. Before and After
6.4.4 During and after the test, check whether the sample works normally in the moving environment. All parts should not be deformed, loose, cracked, broken, poorly connected or have other significant defects
6.5 Impact resistance test
6.5.1 This test should be carried out on the impact test bench specified in Article 5.5.1 according to the provisions of Table 10. Table 10
Acceleration m/s
Pulse duration
Number of impacts (lighting)
6.5.2 During and after the test. Check whether the sample works normally in the impact environment. All parts should not be deformed, loose, fall off, broken, poorly connected or have other significant defects.
6.6 Water resistance test
6.6.1 Install the headlights that have undergone the impact test in the normal use state. 6.6.2 According to the test device in Figure 1, make the test piece rotate at a speed of 17r/min around the plumb line at a uniform speed, and the water spray pipe rotates at a speed of 23r/min around the direction of 45° to the plumb line. The water spray port sprays water outward at a pressure of 98kPa for 30 minutes. 6.6.3 After the test, leave it for 1 hour. Then check the residual water in the lamp. It shall not exceed 2mL, and it shall not darken on the inner surface of the reflector (effective reflection surface).
6.7 Dustproof test
6.7.1 Before the test, the luminous flux of the sample bulb shall be stabilized and its maximum luminous intensity shall be measured. 6.7.2 Install the headlights that have undergone the impact resistance test in the test box specified in Article 5.7.1 in the normal use state, and leave the box at least 150mm away. Inject 5kg of Portland cement into the test box, then spray air for 10s every 15min, 5
JB/T7159-93
so that the dust in the test box is diffused into a uniform state. At this time, the lamp is tested for 8h at intervals of 15min according to the specified test voltage. 6.7.3 After the test, remove the dust on the surface of the sample and measure its maximum luminosity. The luminosity reduction shall not exceed 10% compared with that before the test. This test is not performed on closed-type headlights.
Additional Notes:
This standard was proposed and managed by Tianjin Engineering Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Tianjin Engineering Machinery Research Institute. The main drafter of this standard is Yang Chengshan.
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