GB 7256.1-1987 General requirements for technical conditions of civil airport lighting fixtures
Some standard content:
1 Introduction
National Standards of the People's Republic of China
Technical Conditions for Civil Airport Light Fixtures
General Requirements
Specifications for airport light fixturesGeneral requirements
UDC 621.32.032| |tt||629.139
GB7256.1—87
This standard applies to various types of navigation aids used in civil airports (hereinafter referred to as lamps). The lights provide light indicators for aircraft during taxiing, takeoff or approach and landing.
What is not specified in this standard should be stipulated in the relevant product standards. Normal working conditions of the lamp:
The altitude does not exceed 2500m;
a.
b. The ambient temperature is -40~+50℃,
c. The relative humidity is not more than 95%,
d, and there are no flammable and explosive media and no gas enough to corrode metal and destroy insulation. Work in an environment with conductive dust. 2 Glossary
2.1 Lamp body
An assembly that is equipped with an optical system and can or cannot change its position or direction within a certain range relative to the support (or base) of the lamp. .
2.2 Vertical lamps
Most lamps installed above the ground. Have at least one upright post or support. 2.3 Flat-ground lamps
Most of the lamps are embedded below the ground.
2.4 Directional (luminous) lamps
The emitted light is directional and illuminates one or more lamps with a specific cross-sectional space. 2.5 Omnidirectional (luminous) lamps
The emitted light illuminates the upper half of the space of the lamp. The horizontal distribution of luminous intensity is basically uniform but the vertical distribution of the lamp is mostly uneven. 2.6 Omnidirectional directional (light-emitting) lamps
Lamps with directional lighting function in one or more directions and omnidirectional lighting function in the remaining directions. 2.7 The horizontal datum plane (of the lamp)
is the datum plane expressing the angle of the light emitted by the lamp relative to the lamp body. 2.8 Horizontal datum mark
A permanent mark set on the lamp that can define its horizontal datum. 2.9 Horizontal datum error (or horizontal datum marking error). When the luminous intensity and distribution of the lamp meet the specified requirements relative to a certain plane, and this plane is not the horizontal datum plane of the lamp, the distance between this plane and the horizontal datum plane (or horizontal datum mark) set on the lamp shall be The angle is called the water half datum error (or horizontal datum marking error).
Approved by the National Bureau of Standards on 1987-02-10
Implemented on 1987-11-01
2.10 (lighting fixtures) reference axis
GB7256.1—87||tt ||The light intensity of directional lighting fixtures is distributed on the theoretical axis of symmetry. 2.11 Reference axis direction
The forward direction of the light of the directional luminous lamp on the reference axis. 2.12 Reference axis direction mark
A permanent mark set on the lamp that represents the reference axis direction. When the angle between the reference axis of the lamp and the horizontal datum is a fixed value that cannot be adjusted, the reference axis direction mark is a permanent mark that represents the projection of the reference axis of the lamp on the horizontal datum. 2.13 The light center (of the lamp)
is the intersection point of the reference axis of the lamp and the luminous surface of its front glass. 2.14 (Lamp’s) beam centerline
The line connecting the light intensity peak point of the lamp’s directional luminous beam or the geometric center of multiple adjacent light intensity peak points and the light center of the lamp. The beam centerline of an ideal luminaire coincides with its reference axis. 2.15 Reference axis direction mark error
The angle between the direction of the beam centerline (or its projection on the horizontal datum plane) and the reference axis direction mark. 2.16 Internal deflection angle
The angle between the projection of the reference axis direction of the luminaire on the horizontal datum plane and the vertical plane on which the luminaire is expected to be installed parallel to the center line of the runway.
When the lamp is installed on the runway edge, if the reference axis direction points to the runway center line, the internal deflection angle is positive; if the reference axis direction deviates from the runway center line, the internal deflection angle is negative.
2.17 Installation direction mark
A permanent mark set on a lamp with an internal deflection angle so that it is perpendicular or parallel to the center line of the runway when installed. 2.18 Installation direction mark error
The difference between the angle between the projection of the beam centerline on the horizontal datum plane and the installation direction mark and the specified internal deflection angle. If the installation direction mark is parallel to the center line of the runway, it shall be the difference between this angle and the specified internal deflection angle. 3 Technical requirements
3.1 Corresponding standards for manufacturing lamps
Lamps should comply with the provisions of this standard and relevant product standards, and be manufactured in accordance with drawings and documents approved by prescribed procedures. 3.2 Interchangeability
Parts of the same model of lamps should have good interchangeability. 3.3 Structure
3.3.1 The structure of the lamp should ensure the convenience and safety of normal maintenance work such as replacing bulbs and wiping optical components. 3.3.2 The channel of the insulated wire of the lamp should be of sufficient size and free of rough protrusions, sharp corners and sharp bends. All cable exits shall have smooth rounded edges or be suitably bushed.
3.4 ??Materials
3.4.1 The parts of the lamps should be made of corrosion-resistant materials or coated with a corrosion-resistant protective layer. 3.4.2 An anti-magic layer should be provided on the contact surfaces of different metals that may cause galvanic corrosion. 3.4.3 The insulating materials used in lamps should be moisture-resistant and able to withstand the high temperatures generated by lighting the lamps for a long time. without significantly reducing its mechanical properties and insulation dielectric strength.
3.4.4 Rubber and plastic parts on lamps and lanterns should be able to withstand low ambient temperatures, sunlight, and high temperatures caused by ignition of the lamp. 3.4.5 The conductive parts on the lamps should be made of good conductive materials other than aluminum. 3.5 Creepage distance and clearance
When a wire with a cross-section of 2.5mm2 is connected to the terminal block, between the exposed live parts of the lamp and between the adjacent metal parts GB7256.1-87
The creepage distance and electrical clearance should not be less than those specified in Table 1. Table 1
Creepage distance mm
Voltage level
Insulating material anti-leakage strength level
1
Below 60
220|| tt||3
6
2
3
8
3
3
12(8)| |tt|| Note: ① For lamps with a current not greater than 5A and a rated power not greater than 250W, the values ??in parentheses are used. 4
6(3)
12
clearance
mm
3
8(6)
②1 Level 2 is glazed ceramics and mica glass; level 2 is trinitrile amine asbestos arc-resistant plastic, silicon organic asbestos arc-resistant plastic; level 3 is polytetrafluoroethylene plastic, trinitrile glass fiber plastic, and arc-resistant paint is used on the surface. Treated cyclic ammonia glass cloth board; Level 4 is phenolic plastic laminate. 3.6 Normal electrical insulation performance
Under normal temperature conditions, the electrical insulation performance between the conductive parts of the lamp and between the conductive parts and the shell should meet the following requirements.
The insulation resistance should comply with the requirements in Table 2.
3.6.1
Table 2
rated voltage
V
<42
>42
insulation resistance MQ
Not less than
10
100
The dielectric strength of the insulation should be able to withstand the AC test voltage of 45~62Hz as shown in Table 3 for 4 minutes, and 3.6.2
penetration or flashover occurs.
Table 3
Rated voltage
<42
>42
3.7 Moisture resistance performance
Test voltage
750
2000
3.7.1 The insulation of the lamp should have good moisture resistance. After the alternating damp heat test, the electrical resistance between the conductive part of the lamp and the conductive part and between the conductive part and the shell Insulation performance should meet the following requirements. 3.7.1.1 The insulation resistance shall comply with the requirements in Table 4. 3.7.1.2
Constant voltage
amount
<42
>42
GB7256.1-87
Table 4
The insulation resistance MQ
is not less than
1
2
The dielectric strength of the insulation should be able to withstand such As shown in Table 5, the AC test voltage with a frequency of 45 to 62 Hz is applied for 1 minute without breakdown or flashover.
Table 5
rated voltage
<42
>42
test voltage
500
2U*+1000
V
3.7.2 The paint coating of lamps should be strong and reliable, and comply with the requirements of SG286-82 "Paint Coating of Lamps" Class 2 usage environment. 3.8 Corrosion resistance
After the electroplating layer and chemical coating layer of the metal parts of the lamp are subjected to the 48h salt spray test specified in Article 4.6. It should comply with the requirements of Category 3 usage conditions of GB7003-86 "Electroplating and Chemical Covering of Lamps". Special circumstances shall be agreed upon by both parties. 3.9 Resistance of glass parts to sudden temperature changes
The glass parts of the lamp should be able to withstand the low ambient temperature and the high temperature generated by the ignition of the lamp for a long time without being brittle. The outer cover should be able to withstand the rain in the lighting state without cracking. .
3.10 The chromaticity coordinates of the light color in the standard chromaticity system of GB397783 "Method of Expression of Color" should be within the area limits specified in Table 6, as shown in Figure 1.
Table 6
Light color
red light
green light
boundary
purple
yellow||tt| |yellow
white
blue
limited
square
W=0.980-±
y=0.335
x=0.360-0.080y
x=0.650g
y=0.390-0.171z
*U is the maximum root mean square that may be added to the insulator under normal operating conditions Voltage. Cheng
Light color
Yellow light
Blue light
0.90CT
0.80E
510F
0.70||tt ||0.60
V
boundary
red
white
green
green
white
Purple
limited
GB7256.1-87
continuation table 6
square
y=0.382
y=0.790-0.667z
y=x-0.120
y=0.805z+0.065
y=0.400-r
x=0.600y+0.133
cheng|| tt||0.30
0.20
0.80
0.10
0.40
0.50
0.60
0.70||tt| |TTTTTTTTTTTTTT
TTTTTTTT30.90
520
0.40
M
E490
0.20 day
L||tt ||0.10 day
480
4708
green
530
blue
460
E||tt| |0.10
4509
540
560
white
570
580
variable white||tt| |
30.70
TT
0.60
TT
0.50
TTTTTTTT
30.40
TTTTTTTT|| tt||0.30
0.20
E0.10
E
3800.20
0.30
0.40
x|| tt ||0.50 | 1-87
When the lamp is operating under the specified light source and rated voltage (current), its luminous intensity and distribution should meet the requirements of the product standards for this type of lamp.
3.12 Average light intensity difference
The average luminous intensity between lamps and lanterns within the range specified by product standards. The difference should not be greater than 2:1. 8.18 Surface color
The surface of the lamp should be painted yellow. The chromaticity coordinates of yellow in the GB3977--83 standard chromaticity system should be within the area limits specified in Table 7. The radiance factor β45/0 measured as shown in Figure 2 should not be less than 0.45. Table 7
bound
orange
white
green
3.14 shell protection level
limited
square||tt ||cheng
y=0.108+0.707x
y=0.910-x
y=1.35z-0:093
The shell protection level of the lamp is in accordance with GB7001- 86 "Classification of Protection Levels of Lamp Housings" should meet the following requirements. 3.14.1 Vertical luminaires are IP34.
3.14.2 Flat-mounted luminaires are IP57.
3.15 Surface temperature
The temperature of the top outer surface of flat-ground lamps that is easily touched by aircraft tires when ignited should not exceed 160°C. 3.16 Load-bearing performance
The surface of flat-ground lamps should have no edges and corners, and should be able to withstand the pressure and collision of large aircraft tires without damage under normal working conditions. 3.17 Vibration resistance
Flat-mounted lamps should have vibration resistance. After the vibration test, the parts should not be loose or mechanically damaged, and the light source should not have obvious displacement in the lamp holder.
3.18 Easy-to-break performance
When a vertical lamp is accidentally hit by an airplane, it should be able to break quickly from the root to minimize damage to the airplane. 3.19 Wind resistance performance
Vertical lamps should be able to withstand the wind force specified in the product standards without damage. 3.20 Horizontal datum mark and direction mark 3.20.1 The lamp should be equipped with a horizontal datum mark or a horizontal datum mark, and its position and size should be convenient for adjusting to a level when installing the lamp. The horizontal reference plane or marking error of lamps with directional lighting requirements should be within ±0.5°. 3.20.2 Lamps with directional lighting requirements should be equipped with reference axis direction marks or installation direction marks. The direction mark should be placed in an obvious position and of sufficient size to facilitate use during installation. The error of the direction mark should meet the following requirements. a. Vertical lighting fixtures should be within 1° of soil. b: Flat-ground lamps should be within 2° of soil. 4Test method
Y
0.8
510
0.7
0.6
500F
0.5
0.4
0.3490
0.2
0.1
0
480
170Y
460V
5| |tt||0.1
630
GB7256.1-87
540
in
560
570
380-410
0.2
0.3
0.4
0.5
Standard lighting body D65
620
64
0.6
Figure 2 Area limits of surface color in the standard colorimetric system 4.1 Determination of weight and dimensions
0.7
Use an accuracy no less than 1% The weighing instrument measures the total weight of three lamps of the same model, and calculates the average weight of a single lamp. The weight that does not exceed the product standard limit is considered qualified. For the appearance dimensions limited by the standards of lighting products, measure them with a measuring tool with an accuracy no less than 1%, and if they are within the limits, they are considered qualified.
4.2 Interchangeability inspection
Disassemble 3 lamps of the same model into parts and replace them. If they can be assembled smoothly without processing and adjustment, they are qualified. 4.3 Determination of creepage distance and electrical clearance
Use a suitable mouse to measure all creepage distances and electrical clearances in the lamp. If they are not less than the requirements in Table 1, they are qualified. 4.4 Electrical insulation performance test
4.4.1 Insulation resistance test According to Table 8, select a megohmmeter with an appropriate voltage level to test the conductive parts of the lamp and the conductive parts and between the conductive parts and the shell. The insulation resistance should meet the requirements in Table 2 or Table 4. Working voltage
<42
>42
4.4.2 Insulation dielectric strength test
GB7256.1-87
Table 8
Megohmmeter voltage level
250
500
V
The lamp is installed on the withstand voltage test bench, and an AC power supply with a capacity of not less than 0.5kVA is used to apply the test voltage specified in 3.6.2 or 3.7.1.2 between the conductive parts and the conductive parts, and between the conductive parts and the shell for 1 minute without breakdown or flashover. 4.5 Damp heat test
The damp heat test is carried out in accordance with the provisions of GB2423.4-81 "Basic Environmental Test Procedures for Electrical and Electronic Products Db: Alternating Damp Heat Test Method", the test cycle is 2 cycles, and the high temperature is 55℃. After the test, its electrical insulation performance shall comply with the provisions of 3.7.1; the paint coating shall comply with the provisions of 3.7.2.
4.6 Salt spray test
Perform in accordance with the provisions of GB2423.17-81 "Basic environmental test procedures for electrical and electronic products Test Ka: Salt spray test method". After the test, gently wash off the surface salt deposits with running water, and dry immediately. The results shall comply with the provisions of Article 3.8. 4.7 Test for resistance to sudden temperature change of glass parts
Under normal temperature conditions, ignite the lamp in normal working state at rated voltage (or current) for 2 hours, and then continuously spray the glass parts of the lamp with water at a temperature of 4°C from all directions. It will not break for 1 minute. 4.8 Low temperature test
Put the lamp in a low temperature box at a temperature of -40°C and ignite it at rated voltage (or current) for 2 hours. Cut off the power supply and keep it in the box for 10 hours. Repeat this process three times for a total of 36 hours, then take the lamp out of the box and inspect the lamp components. There should be no cracks, brittleness or deformation, and the lamp components should be easy to install and disassemble and interchangeable. 4.9 Thermal test
The lamp is placed in a human-proof ventilation hood in normal working state, and the power supply is turned on. The power supply voltage should be able to ignite the light source at a power of 1.05 times its rated power and stabilize within the range of ±1%. At the same time, the ambient temperature in the ventilation hood should always be controlled within the range of 50±5℃. When the temperature of the lamp is stable (the temperature change rate is less than 1℃/h), use a semiconductor thermometer to measure the surface temperature of each component that cannot withstand excessively high temperatures. It is qualified if it does not exceed the maximum temperature allowed by the product standard of the material of each component. 4.10 Durability test
The lamp is placed in a thermal test hood in normal state, and the power supply is turned on. The power supply voltage should be 1.05±0.015 times the voltage when the rated power of the light source is obtained. At the same time, the ambient temperature in the thermal test hood should be controlled to be within the range of 60±2℃. After the power is turned on for 21 hours, the power is turned off for 3 hours. This is repeated 10 times for a total of 240 hours. Then the lamp is taken out for inspection. The lamp parts are not cracked, burned or deformed, and are easy to install and disassemble and interchangeable.
4.11 Surface chromaticity measurement
Use any calibrated colorimeter to measure. The measurement conditions are D65 standard light source in accordance with GB3979-83 "Measurement of physical color" and 45°/vertical lighting. After measurement, it should meet the requirements of Article 3.13. It can also be compared with the standard color plate under natural light conditions by visual inspection. If there is no obvious difference, it is qualified.
4.12 Light chromaticity measurement
Use any calibrated brightness meter or spectrophotometer that can accurately measure the color of light to measure the light color of the lamp ignited at rated power. Measure three points in any direction. The result should meet the requirements of Article 3.10. 4.13 Shell protection type test
Perform in accordance with the provisions of GB7001-86.
GB7256.1-87
4.14 Determination of the top surface temperature of flat-type lamps Make a square pit on a site or road that can withstand a heavy truck, or a square or round steel box can be used. The side length of the pit (box) shall not be less than 3 times the diameter of the lamp, and the depth of the pit (box) shall not be less than 2 times the thickness of the lamp. The pit (box) shall be filled with dry sand, and the lamp shall be buried in the center of the pit so that the height of the lamp body exposed to the sand surface is 10mm. Then, after igniting the lamp at rated power for 2 hours, use a thermocouple to measure the temperature of the hottest point on the surface of the lamp and keep it in this position. Then drive the heavy truck, press and cover the surface of the lamp and the thermocouple on it with the tire, and read the temperature after 10 minutes. It is qualified if it does not exceed 160℃. 4.15 Load-bearing test
Place the lamp with the light source in normal working state on the pressure testing machine, with a flat steel plate with a thickness of more than 12mm underneath and a round rubber plate with a thickness of 38~40mm, a diameter of 280mm and a Shore hardness of 50~70 on top. Then gradually pressurize until the pressure on the top surface of the lamp reaches 3.1×106Pa and maintain for 1min, then conduct a visual inspection. The lamp is qualified if there is no damage or permanent deformation. 4.16 Vibration test
Fix the lamp on the vibration test bench in normal working state, install the light source and turn on the power, and then perform sinusoidal vibration in three directions. That is, up and down vibration, and horizontal vibration perpendicular to and parallel to the reference axis direction mark of the lamp. The vibration frequency in each vibration direction starts from 20Hz and gradually increases to 500Hz until the acceleration reaches 10g. This acceleration and vibration process lasts for 10min. Then the vibration frequency continues to increase from 500Hz to 2000Hz until the acceleration reaches 15g. This process should last for another 10min. After the test, the various parts of the lamp shall be checked and shall comply with the provisions of Article 3.17. In the above vibration test, whether the filament is broken or not, the test shall be carried out as above.
4.17 Breakability test
The breakable combination parts of the lamp shall be subjected to the following test. Fix one end of the breakable part horizontally and extend the other end with a steel pipe (the rigidity of the steel pipe should be greater than that of the breakable part). Apply a force of 1324N vertically at a distance of 300mm from the breakable groove. The displacement of the force application point should not exceed 13mm. When the applied force increases to not more than 2255±50N, the breakable groove should break immediately.
4.18 Wind pressure test
The luminaire shall not be damaged after any of the following tests. a. Turn the luminaire upside down 90° and fix it on the support in the normal way so that the maximum windward surface is in a horizontal position. Then apply pressure evenly on the luminaire by loading or hanging weight for 10 minutes. Then turn the luminaire 180° and repeat the above test. The applied pressure P is calculated according to the following formula:
ps
Where: P—pressure, kN;
V2
1502
S—projected area of ??the maximum windward surface, m2, V—maximum wind speed specified in the product standard, km/h. ×2.4×S
b. Place the luminaire in the wind tunnel with the maximum windward surface facing the wind. Increase the wind speed to the maximum wind speed specified in the product standard and maintain it for 10 minutes, then rotate the luminaire 180° and repeat the above test. 4.19 Determination of photometric characteristics
Carry out in accordance with A.4 and A.5 of Appendix A.
4.20 Average light intensity difference check
Measure the average light intensity values ??of the same type of lamps selected according to the test quantity specified in Table 9 and compare them. The difference between the average light intensity values ??of each lamp is not greater than 2:1, which is qualified.
The test voltage specified in item 2 is applied between conductive parts and between conductive parts and the shell for 1 minute without breakdown or flashover. 4.5 Damp heat test
The damp heat test is carried out in accordance with the provisions of GB2423.4-81 "Basic Environmental Test Procedures for Electrical and Electronic Products Db: Alternating Damp Heat Test Method". The test cycle is 2 cycles, and the high temperature is 55°C. After the test, its electrical insulation performance shall comply with the provisions of Section 3.7.1; the paint coating shall comply with the provisions of Section 3.7.2.
4.6 Salt spray test
Conducted in accordance with the provisions of GB2423.17-81 "Basic Environmental Testing Procedures for Electrical and Electronic Products Test Ka: Salt Spray Test Method". After the test, gently wash off the surface salt deposits with running water and dry immediately. The results shall comply with the provisions of Article 3.8. 4.7 Temperature sudden change resistance test of glass parts
Under normal temperature conditions, ignite the lamp at the rated voltage (or current) for 2 hours after the lamp is in normal working condition, and then continuously spray water with a temperature of 4°C from all directions. Apply to the glass parts of lamps and lanterns, and it will not break after 1 minute. 4.8 Low temperature test
Place the lamp into a low temperature box with a temperature of -40°C and ignite it at the rated voltage (or current) for 2 hours. Cut off the power and keep it in the box for 10 hours. Repeat this three times for a total of 36 hours, then take the lamp out of the box and inspect the lamp components. There should be no cracks, embrittlement or deformation, and they should be easy to assemble, disassemble and interchangeable. 4.9 Thermal test
Place the lamp in the ventilation hood in normal working condition and turn on the power supply. The power supply voltage should be able to ignite the light source at 1.05 times its rated power and stabilize it within the range of ±1%, while controlling the anti-ventilation hood. The ambient temperature inside the ventilation hood is always within the range of 50±5℃. When the temperature of the lamp is stable (the temperature change rate is less than 1°C/h), use a semiconductor thermometer to measure the surface temperature of each component that cannot withstand excessive temperatures. If the temperature does not exceed the maximum temperature allowed by the material product standard of each component, it is qualified. 4.10 Durability test
Place the lamp in the thermal test cover in a normal state and turn on the power supply. The power supply voltage should be 1.05 ± 0.015 times the voltage when the rated power of the light source is obtained. At the same time, control the ambient temperature inside the thermal test cover. Make it always within the range of 60±2℃. After powering on for 21 hours, then cut off the power for 3 hours. Repeat this 10 times for a total of 240 hours. Then take out the lamp for inspection. If the lamp parts are not cracked, scorched or deformed, and remain easy to assemble, disassemble and interchangeable, the lamp is qualified.
4.11 Surface colorimetry
Use any calibrated colorimeter for measurement. The measurement conditions are according to GB3979-83 "Measurement Method of Physical Color", which is D65 standard light source, using 45°/vertical Illumination, after measurement, should comply with the provisions of Article 3.13. It can also be visually compared with the standard color plate under natural lighting conditions. If there is no obvious difference, it is qualified.
4.12 Light color measurement
Use any calibrated and accurate luminance meter or spectrophotometer that can measure the color of the light to measure the light color of the lamp ignited at rated power. Measure three times in any direction. point, the result shall comply with the provisions of Article 3.10. 4.13 Shell protection type test
shall be carried out in accordance with the provisions of GB7001-86. | |tt | The side length of the pit (box) is not less than 3 times the diameter of the lamp, and the depth of the pit (box) is not less than 2 times the thickness of the lamp. Fill the pit (box) with dry sand, and bury the lamp in the center of the pit so that the lamp body is exposed. The height of the sand surface is 10mm. Then, after igniting the lamp at rated power for 2 hours, use a thermocouple to measure the temperature of the hottest spot on the surface of the lamp and keep it at that position. Then drive a truck, use tires to press and cover the surface of the lamp and the thermocouple on it, and read the temperature after -10 minutes. If it does not exceed 160°C, it is qualified. 4.15 Load-bearing test
Place the lamp with the light source on the pressure testing machine in normal working condition. The lower part should be padded with a flat steel plate with a thickness of more than 12mm, and the upper part should be 38~40mm thick, 280mm in diameter, and 50 Shore hardness. ~70 round rubber flat plate. Then gradually increase the pressure until the pressure on the top surface of the lamp reaches 3.1×106Pa and maintain it for 1 minute. Then conduct a visual inspection. If the lamp is not damaged or permanently deformed, it is qualified. 4.16 Vibration test
Fix the lamp on the vibration test bench in normal working condition, install the light source and turn on the power supply, and then perform sinusoidal vibration in three directions. That is, vibrations in up and down, horizontal directions perpendicular to and parallel to the reference axis direction mark of the lamp. The vibration frequency in each vibration direction starts from 20Hz and gradually increases to 500Hz until the acceleration reaches 10g. This acceleration and vibration process lasts for 10 minutes, and then continues to gradually increase the vibration frequency from 500Hz to 2000Hz until the acceleration reaches 15g. This process should It lasted another 10 minutes. After the test, each component of the lamp shall be inspected and shall comply with the provisions of Article 3.17. In the above vibration test, regardless of whether the filament is broken or not, the test shall be carried out as above.
4.17 Easy-folding performance test
The easy-folding combined parts of the lamp should be subjected to the following tests. Fix one end of the easy-folding part horizontally, and extend the other end with a steel pipe (the rigidity of the steel pipe should be greater than the easy-folding part). Apply a force of 1324N vertically 300mm away from the easy-folding groove. The displacement of the force application point should not be greater than 13mm. When the applied force increases to no more than 2255±50N, the easy-breaking groove should be broken immediately.
4.18 Wind pressure test
After any of the following tests, the lamp should not be damaged. a. Turn the lamp upside down 90° and fix it on the support according to the normal fixing method, so that the maximum windward surface is in a horizontal position. Then apply pressure evenly on the lamp by loading or lifting for 10 minutes. Then flip the lamp 180° and repeat the above test. The applied pressure P is calculated according to the following formula:
ps
where: P—pressure, kN;
V2
1502
S—maximum windward direction The projected area of ??the surface, m2, V—the maximum wind speed specified in the product standard, km/h. ×2.4×S
b． Place the lamp in the wind tunnel with the largest windward side facing the wind. Increase the wind speed to the maximum wind speed specified in the product standard and maintain it for 10 minutes. Then rotate the lamp 180° and repeat the above test. 4.19 Measurement of photometric properties
shall be carried out in accordance with A.4 and A.5 of Appendix A.
4.20 Average light intensity difference check
Measure the average light intensity values ??of lamps of the same model selected according to the test number specified in Table 9 and compare them. The difference between the average light intensity values ??of each lamp is not the same. Greater than 2:1 is qualified.
The test voltage specified in item 2 is applied between conductive parts and between conductive parts and the shell for 1 minute without breakdown or flashover. 4.5 Damp heat test
The damp heat test is carried out in accordance with the provisions of GB2423.4-81 "Basic Environmental Test Procedures for Electrical and Electronic Products Db: Alternating Damp Heat Test Method". The test cycle is 2 cycles, and the high temperature is 55°C. After the test, its electrical insulation performance shall comply with the provisions of Section 3.7.1; the paint coating shall comply with the provisions of Section 3.7.2.
4.6 Salt spray test
Conducted in accordance with the provisions of GB2423.17-81 "Basic Environmental Testing Procedures for Electrical and Electronic Products Test Ka: Salt Spray Test Method". After the test, gently wash off the surface salt deposits with running water and dry immediately. The results shall comply with the provisions of Article 3.8. 4.7 Temperature sudden change resistance test of glass parts
Under normal temperature conditions, ignite the lamp at the rated voltage (or current) for 2 hours after the lamp is in normal working condition, and then continuously spray water with a temperature of 4°C from all directions. Apply to the glass parts of lamps and lanterns, and it will not break after 1 minute. 4.8 Low temperature test
Place the lamp into a low temperature box with a temperature of -40°C and ignite it at the rated voltage (or current) for 2 hours. Cut off the power and keep it in the box for 10 hours. Repeat this three times for a total of 36 hours, then take the lamp out of the box and inspect the lamp components. There should be no cracks, embrittlement or deformation, and they should be easy to assemble, disassemble and interchangeable. 4.9 Thermal test
Place the lamp in the ventilation hood in normal working condition and turn on the power supply. The power supply voltage should be able to ignite the light source at 1.05 times its rated power and stabilize it within the range of ±1%, while controlling the anti-ventilation hood. The ambient temperature inside the ventilation hood is always within the range of 50±5℃. When the temperature of the lamp is stable (the temperature change rate is less than 1°C/h), use a semiconductor thermometer to measure the surface temperature of each component that cannot withstand excessive temperatures. If the temperature does not exceed the maximum temperature allowed by the material product standard of each component, it is qualified. 4.10 Durability test
Place the lamp in the thermal test cover in a normal state and turn on the power supply. The power supply voltage should be 1.05 ± 0.015 times the voltage when the rated power of the light source is obtained. At the same time, control the ambient temperature inside the thermal test cover. Make it always within the range of 60±2℃. After powering on for 21 hours, then cut off the power for 3 hours. Repeat this 10 times for a total of 240 hours. Then take out the lamp for inspection. If the lamp parts are not cracked, scorched or deformed, and remain easy to assemble, disassemble and interchangeable, the lamp is qualified.
4.11 Surface colorimetry
Use any calibrated colorimeter for measurement. The measurement conditions are according to GB3979-83 "Measurement Method of Physical Color", which is D65 standard light source, using 45°/vertical Illumination, after measurement, should comply with the provisions of Article 3.13. It can also be visually compared with the standard color plate under natural lighting conditions. If there is no obvious difference, it is qualified.
4.12 Light color measurement
Use any calibrated and accurate luminance meter or spectrophotometer that can measure the color of the light to measure the light color of the lamp ignited at rated power. Measure three times in any direction. point, the result shall comply with the provisions of Article 3.10. 4.13 Shell protection type test
shall be carried out in accordance with the provisions of GB7001-86. | |tt | The side length of the pit (box) is not less than 3 times the diameter of the lamp, and the depth of the pit (box) is not less than 2 times the thickness of the lamp. Fill the pit (box) with dry sand, and bury the lamp in the center of the pit so that the lamp body is exposed. The height of the sand surface is 10mm. Then, after igniting the lamp at rated power for 2 hours, use a thermocouple to measure the temperature of the hottest spot on the surface of the lamp and keep it at that position. Then drive a truck, use tires to press and cover the surface of the lamp and the thermocouple on it, and read the temperature after -10 minutes. If it does not exceed 160°C, it is qualified. 4.15 Load-bearing test
Place the lamp with the light source on the pressure testing machine in normal working condition. The lower part should be padded with a flat steel plate with a thickness of more than 12mm, and the upper part should be 38~40mm thick, 280mm in diameter, and 50 Shore hardness. ~70 round rubber flat plate. Then gradually increase the pressure until the pressure on the top surface of the lamp reaches 3.1×106Pa and maintain it for 1 minute. Then conduct a visual inspection. If the lamp is not damaged or permanently deformed, it is qualified. 4.16 Vibration test
Fix the lamp on the vibration test bench in normal working condition, install the light source and turn on the power supply, and then perform sinusoidal vibration in three directions. That is, vibrations in up and down, horizontal directions perpendicular to and parallel to the reference axis direction mark of the lamp. The vibration frequency in each vibration direction starts from 20Hz and gradually increases to 500Hz until the acceleration reaches 10g. This acceleration and vibration process lasts for 10 minutes, and then continues to gradually increase the vibration frequency from 500Hz to 2000Hz until the acceleration reaches 15g. This process should It lasted another 10 minutes. After the test, each component of the lamp shall be inspected and shall comply with the provisions of Article 3.17. In the above vibration test, regardless of whether the filament is broken or not, the test shall be carried out as above.
4.17 Easy-folding performance test
The easy-folding combined parts of the lamp should be subjected to the following tests. Fix one end of the easy-folding part horizontally, and extend the other end with a steel pipe (the rigidity of the steel pipe should be greater than the easy-folding part). Apply a force of 1324N vertically 300mm away from the easy-folding groove. The displacement of the force application point should not be greater than 13mm. When the applied force increases to no more than 2255±50N, the easy-breaking groove should be broken immediately.
4.18 Wind pressure test
After any of the following tests, the lamp should not be damaged. a. Turn the lamp upside down 90° and fix it on the support according to the normal fixing method, so that the maximum windward surface is in a horizontal position. Then apply pressure evenly on the lamp by loading or lifting for 10 minutes. Then flip the lamp 180° and repeat the above test. The applied pressure P is calculated according to the following formula:
ps
where: P—pressure, kN;
V2
1502
S—maximum windward direction The projected area of ??the surface, m2, V—the maximum wind speed specified in the product standard, km/h. ×2.4×S
b. Place the lamp in the wind tunnel with the largest windward side facing the wind. Increase the wind speed to the maximum wind speed specified in the product standard and maintain it for 10 minutes, then rotate the lamp 180° and repeat the above test. 4.19 Measurement of photometric properties
shall be carried out in accordance with A.4 and A.5 of Appendix A.
4.20 Average light intensity difference check
Measure the average light intensity values ??of lamps of the same model selected according to the test number specified in Table 9 and compare them. The difference between the average light intensity values ??of each lamp is not the same. Greater than 2:1 is qualified.
015 times, while controlling the ambient temperature inside the thermal test cover so that it is always within the range of 60±2℃. After powering on for 21 hours, then cut off the power for 3 hours. Repeat this 10 times for a total of 240 hours. Then take out the lamp for inspection. If the lamp parts are not cracked, scorched or deformed, and remain easy to assemble, disassemble and interchangeable, the lamp is qualified.
4.11 Surface colorimetry
Use any calibrated colorimeter for measurement. The measurement conditions are according to GB3979-83 "Measurement Method of Physical Color", which is D65 standard light source, using 45°/vertical Illumination, after measurement, should comply with the provisions of Article 3.13. It can also be visually compared with the standard color plate under natural lighting conditions. If there is no obvious difference, it is qualified.
4.12 Light color measurement
Use any calibrated and accurate luminance meter or spectrophotometer that can measure the color of the light to measure the light color of the lamp ignited at rated power. Measure three times in any direction. point, the result shall comply with the provisions of Article 3.10. 4.13 Shell protection type test
shall be carried out in accordance with the provisions of GB7001-86. | |tt | The side length of the pit (box) is not less than 3 times the diameter of the lamp, and the depth of the pit (box) is not less than 2 times the thickness of the lamp. Fill the pit (box) with dry sand, and bury the lamp in the center of the pit so that the lamp body is exposed. The height of the sand surface is 10mm. Then, after igniting the lamp at rated power for 2 hours, use a thermocouple to measure the temperature of the hottest spot on the surface of the lamp and keep it at that position. Then drive a truck, use tires to press and cover the surface of the lamp and the thermocouple on it, and read the temperature after -10 minutes. If it does not exceed 160°C, it is qualified. 4.15 Load-bearing test
Place the lamp with the light source on the pressure testing machine in normal working condition. The lower part should be padded with a flat steel plate with a thickness of more than 12mm, and the upper part should be 38~40mm thick, 280mm in diameter, and 50 Shore hardness. ~70 round rubber flat plate. Then gradually increase the pressure until the pressure on the top surface of the lamp reaches 3.1×106Pa and maintain it for 1 minute. Then conduct a visual inspection. If the lamp is not damaged or permanently deformed, it is qualified. 4.16 Vibration test
Fix the lamp on the vibration test bench in normal working condition, install the light source and turn on the power supply, and then perform sinusoidal vibration in three directions. That is, vibrations in up and down, horizontal directions perpendicular to and parallel to the reference axis direction mark of the lamp. The vibration frequency in each vibration direction starts from 20Hz and gradually increases to 500Hz until the acceleration reaches 10g. This acceleration and vibration process lasts for 10 minutes, and then continues to gradually increase the vibration frequency from 500Hz to 2000Hz until the acceleration reaches 15g. This process should It lasted another 10 minutes. After the test, each component of the lamp shall be inspected and shall comply with the provisions of Article 3.17. In the above vibration test, regardless of whether the filament is broken or not, the test shall be carried out as above.
4.17 Easy-folding performance test
The easy-folding combined parts of the lamp should be subjected to the following tests. Fix one end of the easy-folding part horizontally, and extend the other end with a steel pipe (the rigidity of the steel pipe should be greater than the easy-folding part). Apply a force of 1324N vertically 300mm away from the easy-folding groove. The displacement of the force application point should not be greater than 13mm. When the applied force increases to no more than 2255±50N, the easy-breaking groove should be broken immediately.
4.18 Wind pressure test
After any of the following tests, the lamp should not be damaged. a. Turn the lamp upside down 90° and fix it on the support according to the normal fixing method, so that the maximum windward surface is in a horizontal position. Then apply pressure evenly on the lamp by loading or lifting for 10 minutes. Then flip the lamp 180° and repeat the above test. The applied pressure P is calculated according to the following formula:
ps
where: P—pressure, kN;
V2
1502
S—maximum windward direction The projected area of ??the surface, m2, V—the maximum wind speed specified in the product standard, km/h. ×2.4×S
b． Place the lamp in the wind tunnel with the largest windward side facing the wind. Increase the wind speed to the maximum wind speed specified in the product standard and maintain it for 10 minutes, then rotate the lamp 180° and repeat the above test. 4.19 Measurement of photometric properties
shall be carried out in accordance with A.4 and A.5 of Appendix A.
4.20 Average light intensity difference check
Measure the average light intensity values ??of lamps of the same model selected according to the test number specified in Table 9 and compare them. The difference between the average light intensity values ??of each lamp is not the same. Greater than 2:1 is qualified.
015 times, while controlling the ambient temperature inside the thermal test cover so that it is always within the range of 60±2℃. After powering on for 21 hours, then cut off the power for 3 hours. Repeat this 10 times for a total of 240 hours. Then take out the lamp for inspection. If the lamp parts are not cracked, scorched or deformed, and remain easy to assemble, disassemble and interchangeable, the lamp is qualified.
4.11 Surface colorimetry
Use any calibrated colorimeter for measurement. The measurement conditions are according to GB3979-83 "Measurement Method of Physical Color", which is D65 standard light source, using 45°/vertical Illumination, after measurement, should comply with the provisions of Article 3.13. It can also be visually compared with the standard color plate under natural lighting conditions. If there is no obvious difference, it is qualified.
4.12 Light color measurement
Use any calibrated and accurate luminance meter or spectrophotometer that can measure the color of the light to measure the light color of the lamp ignited at rated power. Measure three times in any direction. point, the result shall comply with the provisions of Article 3.10. 4.13 Shell protection type test
shall be carried out in accordance with the provisions of GB7001-86. | |tt | The side length of the pit (box) is not less than 3 times the diameter of the lamp, and the depth of the pit (box) is not less than 2 times the thickness of the lamp. Fill the pit (box) with dry sand, and bury the lamp in the center of the pit so that the lamp body is exposed. The height of the sand surface is 10mm. Then, after igniting the lamp at rated power for 2 hours, use a thermocouple to measure the temperature of the hottest spot on the surface of the lamp and keep it at that position. Then drive a truck, use tires to press and cover the surface of the lamp and the thermocouple on it, and read the temperature after -10 minutes. If it does not exceed 160°C, it is qualified. 4.15 Load-bearing test
Place the lamp with the light source on the pressure testing machine in normal working condition. The lower part should be padded with a flat steel plate with a thickness of more than 12mm, and the upper part should be 38~40mm thick, 280mm in diameter, and 50 Shore hardness. ~70 round rubber flat plate. Then gradually increase the pressure until the pressure on the top surface of the lamp reaches 3.1×106Pa and maintain it for 1 minute. Then conduct a visual inspection. If the lamp is not damaged or permanently deformed, it is qualified. 4.16 Vibration test
Fix the lamp on the vibration test bench in normal working condition, install the light source and turn on the power supply, and then perform sinusoidal vibration in three directions. That is, vibrations in up and down, horizontal directions perpendicular to and parallel to the reference axis direction mark of the lamp. The vibration frequency in each vibration direction starts from 20Hz and gradually increases to 500Hz until the acceleration reaches 10g. This acceleration and vibration process lasts for 10 minutes, and then continues to gradually increase the vibration frequency from 500Hz to 2000Hz until the acceleration reaches 15g. This process should It lasted another 10 minutes. After the test, each component of the lamp shall be inspected and shall comply with the provisions of Article 3.17. In the above vibration test, regardless of whether the filament is broken or not, the test shall be carried out as above.
4.17 Easy-folding performance test
The easy-folding combined parts of the lamp should be subjected to the following tests. Fix one end of the easy-folding part horizontally, and extend the other end with a steel pipe (the rigidity of the steel pipe should be greater than the easy-folding part). Apply a force of 1324N vertically 300mm away from the easy-folding groove. The displacement of the force application point should not be greater than 13mm. When the applied force increases to no more than 2255±50N, the easy-breaking groove should be broken immediately. bzxz.net
4.18 Wind pressure test
After any of the following tests, the lamp should not be damaged. a. Turn the lamp upside down 90° and fix it on the support according to the normal fixing method, so that the maximum windward surface is in a horizontal position. Then apply pressure evenly on the lamp by loading or lifting for 10 minutes. Then flip the lamp 180° and repeat the above test. The applied pressure P is calculated according to the following formula:
ps
where: P—pressure, kN;
V2
1502
S—maximum windward direction The projected area of ??the surface, m2, V—the maximum wind speed specified in the product standard, km/h. ×2.4×S
b． Place the lamp in the wind tunnel with the largest windward side facing the wind. Increase the wind speed to the maximum wind speed specified in the product standard and maintain it for 10 minutes, then rotate the lamp 180° and repeat the above test. 4.19 Measurement of photometric properties
shall be carried out in accordance with A.4 and A.5 of Appendix A.
4.20 Average light intensity difference check
Measure the average light intensity values ??of lamps of the same model selected according to the test number specified in Table 9 and compare them. The difference between the average light intensity values ??of each lamp is not the same. Greater than 2:1 is qualified.
4 and A.5 proceed.
4.20 Average light intensity difference check
Measure the average light intensity values ??of lamps of the same model selected according to the test number specified in Table 9 and compare them. The difference between the average light intensity values ??of each lamp is not the same. Greater than 2:1 is qualified.
4 and A.5 proceed.
4.20 Average light intensity difference check
Measure the average light intensity values ??of lamps of the same model selected according to the test number specified in Table 9 and compare them. The difference between the average light intensity values ??of each lamp is not the same. Greater than 2:1 is qualified.
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