Reference standards

2.1. GB/T18380.11-2022 (IEC60332-1-1:2015): Burning tests for electric and optical cables under flame conditions - Part 11: Test device for vertical flame propagation of single insulated wire and cable

2.2. GB/T18380.12-2022 (IEC60332-1-2:2015): Burning tests for electric and optical cables under flame conditions - Part 12: Vertical flame propagation test for single insulated wire and cable -1KW pre mixed flame test device

2.3. GB/T18380.13-2022 (IEC60335-1-3:2015): Fire tests for electric and optical cables under flame conditions - Part 13: Test method for determining droplets/particles of combustion during vertical flame propagation of single insulated wire and cable

2.4 GB/T5169.14-2017 (IEC60695-11-2:2013): Fire hazard testing for electrical and electronic products - Part 14: Test flame 1KW nominal premixed flame

Technical parameters

3.1 Display system 7-inch color touch screen, with test time and temperature calibration set, displayed, and controlled through the touch screen;

3.2. Control system PLC programmable controller;

3.3. Sample length 600 ± 25mm;

3.4. Gas source (provided by the user) A) Propane with a gas purity of not less than 95%, B) Compressed air (which should be basically oil-free and anhydrous);

3.5. Flame application time 0~999.9 seconds can be set;

3.6. Holding time 0~999.9 seconds can be set;

3.7. Burner 1KW burner, with burner specifications meeting the requirements of GB5169.14 (IEC60695-11-2) standard;

3.8. Load 7.5N, 12.5N, 20N, 30N, 50N superimposed implementation;

3.9 Flame temperature calibration Measure the time it takes for the copper block temperature to rise from 100 ℃± 5 ℃ to 700 ℃± 3 ℃, which is 46 seconds ± 6 seconds.

3.10. Flame temperature calibration and temperature measurement copper block

a. Copper block diameter Ø 9 ± 0.01mm;

b. Main length of copper block 16.14 ± 0.02mm;

c. Copper block inclined length 3 ± 0.01mm;

d. Copper block inclined angle 45 ° ± 0.5 °;

e. Thermocouple hole diameter Ø 0.5mm;

f. Thermocouple hole depth 6 ± 0.02mm;

g. Copper block mass 10.00g ± 0.05g before drilling;

h. Copper block material electrolytic copper, with all external surfaces polished.

3.11. Thermocouple Specification A K-type armored fine wire thermocouple with a diameter of 0.5mm imported from the United States. The armored sleeve is made of metal and can operate continuously at a temperature of at least 1050 ℃.

3.12. Flowmeter specifications

a. Suitable for measuring and controlling propane flow rate at 23 ℃ and 0.1MPa to 650 ± 10mL/min (with a resolution of 10mL/min for the 650mL labeling segment);

b. Suitable for measuring and controlling air flow rate of 10.0L ± 0.3L/min under conditions of 23 ℃ and 0.1MPa (with a resolution of 0.3L/min for the 10L/min identification segment);

3.13. Combustion box size (length x width x height) 300x450x1200 ± 25mm, with open front and closed top and bottom, and internal illumination less than 20Lux;

3.14. Inner box size of the testing machine not less than 1 cubic meter;

3.15 Complete set of accessories the testing machine consists of Fume hood, control box, combustion box, burner, solenoid valve, high-pressure igniter, gas pipe, gas pressure regulating valve, air pressure regulating valve, gas pressure gauge, air pressure gauge, gas flowmeter, air flowmeter, temperature measuring system, weight load, exhaust system, lighting system and signal control line group.

3.16. Power supply AC220V/50Hz.