High and Low Temperature Test Standard of PC Plastic Material
1. High temperature test
After being placed at 80±2℃ for 4 hours and at normal temperature for 2 hours, the dimensions, insulation resistance, voltage resistance, key function, and loop resistance meet the normal requirements, and there are no abnormal phenomena such as deformation, warping, and degumming in appearance. The key convex point collapses at high temperature and the press force becomes smaller without assessment.
2. Low temperature test
After being placed at -30±2℃ for 4 hours and at normal temperature for 2 hours, the dimensions, insulation resistance, voltage resistance, key function, and loop resistance meet normal requirements, and there are no abnormal phenomena such as deformation, warping, and degumming in appearance.
3. Temperature cycle test
Put in 70±2℃ environment for 30 minutes, take out at room temperature for 5 minutes; Leave in -20±2℃ environment for 30 minutes, remove and leave at room temperature for 5 minutes. After such 5 cycles, the dimensions, insulation resistance, voltage resistance, key function, circuit resistance meet the normal requirements, and the appearance of no deformation, warping, degumming and other abnormal phenomena. The key convex point collapses at high temperature and the press force becomes smaller without assessment.
4. Heat resistance
After being placed in an environment with a temperature of 40±2℃ and a relative humidity of 93±2%rh for 48 hours, the dimensions, insulation resistance, voltage resistance, key function, and loop resistance meet normal requirements, and the appearance is not deformed, warped, or degumped. The key convex point collapses at high temperature and the press force becomes smaller without assessment.
National standard value for plastic testing:
Gb1033-86 Plastic density and relative density test method
Gbl636-79 Test method for apparent density of moulding plastics
GB/ T7155.1-87 Thermoplastic pipe and pipe fittings density determination part: polyethylene pipe and pipe fittings reference density determination
GB/ T7155.2-87 Thermoplastic pipes and fittings -- Determination of density -- Part L: Determination of density of polypropylene pipes and fittings
GB/T1039-92 General rules for testing mechanical properties of plastics
GB/ T14234-93 Surface roughness of plastic parts
Gb8807-88 plastic mirror gloss test method
Test method for tensile properties of GBL3022-9L plastic film
GB/ TL040-92 Test method for tensile properties of plastics
Test method for tensile properties of GB/ T8804.1-88 thermoplastic pipes polyvinyl chloride pipes
GB/ T8804.2-88 Test methods for tensile properties of thermoplastic pipes Polyethylene pipes
Hg2-163-65 plastic low temperature elongation test method
GB/ T5471-85 Method for preparing thermosetting molding specimens
HG/ T2-1122-77 thermoplastic sample preparation method
GB/ T9352-88 thermoplastic compression sample preparation
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LED Street Lamp Test Specification
LED street lights are currently one of the key implementation methods to save energy and reduce carbon, all countries in the world have been in full swing to replace the original traditional street lights with LED street lights, and the new street is directly limited to the use of LED street lights to save energy. At present, the world LED street lamp market size of about 80 million, LED lamp light source whether it is heat, service life, output spectrum, output illuminance, material characteristics, are different from traditional mercury lamp or high-pressure sodium lamp. The test conditions and test methods of LED street lights are different from traditional lamps. Lab Companion collected the reliability test methods related to LED street lights at present and provide you with reference to help you understanding the related tests about LED.
LED street lamp test specification abbreviation:
LED street lamp test standard specification, LED street lamp test method technical specification, LED street lamp standard and test method, night landscape engineering semiconductor lighting device components product technical specification, semiconductor lighting night landscape engineering construction quality acceptance technical specification, IEC 61347LED power supply safety regulation
LED street lamp test specification conditions:
CJJ45-2006 Urban road lighting design standard, UL1598 lamps safety standard, UL48 wire and cable safety standard, UL8750 light-emitting diode safety standard, CNS13089 light-emitting diode large lamp durability Test - pre-burning test - outdoor, Waterproof Test: IP65, American Standard for LED lamps, EN 60598-1, EN 60598-2 Street lamp test
LED large lamp quality certification test project:
Temperature cycle, temperature and humidity cycle, high temperature preservation, moisture resistance, vibration, shock, continuous power, salt water spray, acceleration, solder heat resistance, solder adhesion, terminal strength, natural drop, dust test
LED large lamp quality certification test conditions:
Temperature cycle: 125℃(30min)←R.T.(5min)→-65℃(30min)/5cycle
LED street lamp (light-emitting diode outdoor display with large lights) failure determination:
a. The axis light is lower than the residual rating of 50%
b. Forward voltage is greater than 20% of the rated value
c. Reverse current greater than 100% of the rated value
d. The half height wave length and half power Angle of the light exceed the limited maximum value or the limited minimum value meet the above conditions, and determine the failure of the LED street lamp
Note: The luminous efficiency of LED street lamp is recommended to be at least 45lm/W or above (the luminous efficiency of LED light source must be about 70 ~ 80lm/W)
High temperature storage: maximum storage temperature 1000 hours [special level 3000 hours]
Moisture resistance: 60℃/90%R.H./1000 hours [characteristic level 2000 hours]/ applying bias
Brine spray: 35℃/ concentration 5%/18 hours [24 hours special level]
Continuous power: maximum forward current 1000 hours
Natural fall: Fall height 75cm/ fall times 3 times/fall material smooth maple wood
Dust test: continuous 360 hours of 50℃ ring temperature test
Vibration: 100 ~ 2000Hz, 196m/s^2, 48 hours
Impact: Grade F[Acceleration 14700m/s^2, pulse amplitude 0.5ms, six directions, three times in each direction]
Equal acceleration: Acceleration is applied in all directions (class D: 196000 m/s^2) for 1 minute
Solder heat resistance: 260℃/10 seconds /1 time
Solder adhesion: 250℃/5 seconds
Terminal strength
LED large lamp batch quality test project:
Terminal strength, solder heat resistance, temperature cycle, moisture resistance, continuous power, high temperature storage
LED large lamp batch quality test conditions:
Moisture resistance: 60℃/90%R.H./168 hours (no failure)/500 hours (one failure allowed)[test number 10 / apply bias]
Continuous power on: maximum forward current /168 hours (no failure)/500 hours (one failure allowed)[test number 10]
High temperature storage: maximum storage temperature /168 hours (no failure)500 hours (one failure allowed)[test number 10]
Solder heat resistance: 260℃/10 seconds /1 time
Solder adhesion: 250℃/5 seconds
LED large lamp regular quality test project:
Vibration, shock, acceleration, moisture resistance, continuous power, high temperature preservation
Regular quality test conditions for LED large lights:
Moisture resistance: 60℃/90%R.H./1000 hours
Continuous power: maximum forward current /1000 hours
High temperature storage: Maximum storage temperature /1000 hours
Vibration: 100 ~ 2000Hz, 196m/s^2, 48 hours
Impact: Grade F[Acceleration 14700m/s^2, pulse amplitude 0.5ms, six directions, three times in each direction]
Equal acceleration: Acceleration is applied in all directions (class D: 196000 m/s^2) for 1 minute
LED large lamp screening test project:
Acceleration test, temperature cycle, high temperature preservation, pre-burning test
LED large light screening test conditions:
Constant acceleration test: Apply acceleration (grade D: 196000 m/s^2) in each direction for 1 minute
Temperature cycle: 85℃(30min)←R.T.(5min)→-40℃(30min)/5cycle
Pre-firing test: temperature (maximum rated temperature)/ current (maximum rated forward current)96 hours
High temperature storage: 85℃/72 ~ 1000 hours
LED lamp life test:
More than 1000 hours of Life Test (Life Test), light attenuation < 3% [withered light]
More than 15,000 hours of Life Test (Life Test), light attenuation < 8%
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