The value and far-reaching impact of wire smoke test
Wire smoke testing is an important part of the electrical safety field and is of great significance in ensuring the quality and safety of wire products. Such tests not only help to evaluate the response of electrical cables under overload or short-circuit conditions, but also provide critical data for improving the design of electrical cables to ensure the safety of people and property.
Test Steps and Procedures:
The wire smoke test typically consists of the following key steps:
(i) Test Preparation: First, select appropriate test samples, including different types and sizes of wires. Prepare the test equipment, such as smoke boxes, temperature sensors, smoke density measurement equipment, etc.
(ii) Environmental settings: Ensure that the temperature and humidity of the test environment meet the requirements of national standards or industry codes. This is critical to the accuracy of the test results.
(iii) Applying Voltage: Apply a specific voltage to the wire in a controlled environment to simulate overload conditions that may occur in actual use.
(iv) Monitoring and recording: Recording the response of the wire under different loads, including the amount and density of smoke produced, temperature changes, etc. This is essential for analysing the performance of the wire. These data are essential for analysing the performance of the wire.
(v) Data analysis: After the test is completed, the collected data is analysed in detail to assess the performance and safety of the wire under extreme conditions.
The important value of the wire smoke test is reflected in several ways. Firstly, it greatly enhances the safety of the wire. By simulating the response of a wire under high load conditions, this test is effective in identifying and preventing hazardous conditions that can lead to fires and other safety incidents. Secondly, the test results provide manufacturers with valuable data to help them understand the performance of their products under extreme conditions, thus guiding them to optimise product design and improve product quality. In addition, these test data play a key role in the development and updating of national standards and industry codes relating to electrical cables, ensuring uniformity and standardisation in the industry. Finally, by controlling the amount of smoke emitted from electrical cables, the test also contributes to environmental protection by helping to reduce the amount of hazardous substances that may be produced in the event of a fire, thereby protecting the environment.
The far-reaching impact of the wire smoke test is not limited to within the electrical industry. As society becomes more aware of safety and environmental protection, the positive impact of this type of test on society as a whole becomes more apparent. It not only enhances the safety performance of electrical wire products, but also provides the public with a higher quality of life and safety protection. In addition, with the continuous progress and update of technology, the methods and techniques of wire smoke test are also improving, which will further promote the development of electrical safety field.
As a result, the wire smoke test chamber was born. This wire smoke test machine according to the standard IEC 60811, JASO D609-1 in the relevant provisions of the design and manufacture. The tester is suitable for the wire and cable to assess the performance of the product.
Technical parameters:
1. Mirror stainless steel argon arc welding is used in the box, the box is made of high-quality steel plate, beautiful and innovative modelling.
2. Adopting microcomputer P.I.D temperature controller with over-temperature deviation protection and timing function, the temperature is accurate and reliable.
3. The hot air circulation system consists of a fan that can operate continuously under high temperature and a suitable air duct to improve the temperature uniformity in the working chamber.
4. The new synthetic silicon sealing strip can operate at high temperature for a long time, with long service life and easy to replace.
5. Control range: RT+10~ 200°C
6. Provide test space: 1000*1000*1000mm test chamber (brand: Espex, the above requirements in the parameters if there is inconsistent, according to the brand's technology and production process requirements);.
7. There are two φ50 inlet and outlet holes and hole plugs in the box, and the wall of the holes is made of heat-insulating and temperature-resistant materials (e.g. ceramic ring columns, etc.) (customised).
8. There are two about φ80-100 holes for installation of light transmittance device on both sides of the box located at about 300 high on the bottom surface inside the box (customised).
9. Provide high-temperature resistant support frame (high-temperature coated material or ceramic lining), so that the specimen winding in the frame and isolate the specimen from each other.
10. Test specimens are wound on the support frame according to the required level during the test. As follows: .
11. Temperature resolution: 0.1°C
12. Temperature fluctuation: +1.0°C
13. Stainless steel inner liner
14. Timing range: 1 ~ 5999min
15. With observation window, lighting device.
16. Provide 1500A DC load wiring port.
17. Wire current-carrying tester: Provide current on demand, current in 1 ~ 1500A
18. Smoke test box: transmittance demand, - - Once the wire smoke, the system automatically records the temperature of the current of the energised time; - - Once the wire smoke, the system automatically records the temperature of the current of the energised time; - - Once the wire smoke.
19. Transmittance measurement system: the use of high-precision optical system, can be automatically corrected; adjust the luminous flux of zero (0%) and fullness (100%).
20. Smoke induction device is placed in the sample above the test cable 200-300mm, to ensure that delays in the induction of immediate and real.
21. Do smoke test, the test piece using a single U-type structure, the spacing is not more than 40mm, to ensure that the smoke above the smoke sensing device to capture the smoke in an accurate and timely manner.
22. Wire current-carrying test machine and smoke test box as a whole, the wire in the smoke test box, the current-carrying test machine current to be connected to the input current.
Input current.
23. The system can be set, light flux (smoke concentration) alarm value.
24. Light bulb method, lamp power: 15W (another spare bulb 1). Or laser reflection method, 800nm.
25. Touch screen type: colour touch screen display, setting and temperature control.
26. Smoke density test device contains: closed test chamber, photometer measurement system and smoke density test software.
27. Computer system: temperature control, light transmission rate detection (smoke indication) and time and other test data acquisition system; English menu prompts and operation, print data and display curves. Adopting Xinhe smoke density test software, sharing computer hardware with SH6319B automotive wire flow test device.
In general, wire smoke test is an indispensable part of the electrical safety field, which is of great significance to enhance product safety, promote industry development and protect the environment and public safety. With the development of technology and society's emphasis on safety, its value and impact will continue to be far-reaching.
