Abstract
The needle-flame tester is a critical instrument in assessing the flammability of materials used in electrical and electronic equipment. By simulating small flame exposure, it evaluates the ignition risk under fault conditions. This paper delves into the needle-flame test method, emphasizing the LISUN ZY-3 Needle Flame Test apparatus, and discusses its applications, technical specifications, and compliance with international standards.
1. Introduction
Fire hazards in electrical and electronic equipment pose significant risks to safety and property. To mitigate these risks, materials used in such equipment must undergo rigorous flammability testing. The needle-flame tester is designed to simulate the effect of small flames on materials, assessing their ignition resistance and self-extinguishing capabilities.
2. Needle-Flame Test Methodology
The needle-flame test, as outlined in IEC 60695-11-5, involves exposing a test specimen to a standardized flame produced by a needle burner. The burner, with a bore of 0.5 mm ± 0.1 mm, generates a flame height of 12 mm ± 1 mm using butane gas. The flame is applied to the specimen at a 45° angle for a specified duration, typically 30 seconds, to evaluate the material’s ignition susceptibility and combustion duration.
3. Overview of the LISUN ZY-3 Needle Flame Test Apparatus
The LISUN ZY-3 Needle Flame Test apparatus is engineered to conduct precise needle-flame tests in accordance with international standards such as IEC 60695-2-2 and IEC 60695-11-5. It is widely utilized in testing lighting equipment, low-voltage electrical appliances, household appliances, power tools, electronic instruments, and insulating materials.
ZY-3 Needle Flame Test
4. Technical Specifications of the LISUN ZY-3
The ZY-3 model boasts the following technical features:
Specification
Details
Flame Height
12 mm ± 1 mm (adjustable using a flame height gauge)
Burner Angle
45° inclination during testing; vertical when adjusting flame height
Flame Application Time
Adjustable from 0 to 999.9 seconds with an accuracy of ±0.1 seconds
Afterflame Time Measurement
0 to 999.9 seconds with an accuracy of ±0.1 seconds
Temperature Range
0°C to 1000°C
Gas Type
95% purity butane or propane
Compliance Standards
IEC 60695-2-2 and IEC 60695-11-5
Dimensions
1120 mm × 520 mm × 1250 mm
Power Supply
220 V, 50 Hz
5. Applications of the Needle-Flame Tester
The needle-flame tester is essential in evaluating the fire hazard of materials used in various electrical and electronic products. Its applications include:
• Lighting Equipment: Assessing the flammability of components in lighting fixtures to ensure they do not propagate flames in fault conditions.
• Household Appliances: Testing materials in appliances like refrigerators, washing machines, and microwaves to verify their resistance to ignition.
• Power Tools: Ensuring that insulating materials in drills, saws, and other tools do not ignite easily, maintaining user safety.
• Electronic Instruments: Evaluating the fire resistance of components in devices such as multimeters, oscilloscopes, and other measurement tools.
• Insulating Materials: Testing engineering plastics and other insulating materials to determine their suitability for use in electrical applications.
6. Importance of Compliance with International Standards
Adherence to international standards like IEC 60695-2-2 and IEC 60695-11-5 ensures that products meet global safety requirements. Manufacturers utilizing the LISUN ZY-3 can confidently certify their products’ compliance, facilitating market access and consumer trust.
7. Conclusion
The needle-flame tester, exemplified by the LISUN ZY-3 Needle Flame Test apparatus, is a vital tool in the safety assessment of materials used in electrical and electronic equipment. By accurately simulating small flame exposure, it helps manufacturers identify potential fire hazards, ensuring products are safe for consumer use. Compliance with established international standards further reinforces the reliability and safety of these products in the global market. https://www.lisungroup.com/news/technology-news/an-in-depth-analysis-of-the-needle-flame-tester-focusing-on-the-lisun-zy-3-needle-flame-test-apparatus.html
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