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| Effect of Different Environmental Conditions on Electrical Performance of Aluminum Alloy Cable Components |
| Received:May 22, 2023 Revised:August 09, 2023 |
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| DOI：10.7643/issn.1672-9242.2023.11.007 |
| KeyWord:aluminum alloy cable components environmental suitability moisture salt spray vibration electrical performance |
| Author | Institution |
| HAN Zhan-jie |
China Aero Poly-technology Establishment, Beijing , China |
| WANG Xiao-jia |
China Aero Poly-technology Establishment, Beijing , China |
| ZHANG Zhe |
China Aero Poly-technology Establishment, Beijing , China |
| WEN Fang |
China Aero Poly-technology Establishment, Beijing , China |
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| Abstract: |
| The work aims to compare and study the effect of three environmental conditions on the direct current (DC) resistance and voltage drop of two types of aluminum alloy components. With aluminum alloy components of aluminum alloy wires (of three types of diameter) for aviation of two different brands as objects, environmental tests (moisture, salt spray and vibration tests) were carried out. First, the values of DC resistance and voltage drop were measured before and after the aforementioned environmental tests, using macroscopic and microscopic morphology observation, DC resistance and voltage drop test method. Second, the experimental results were processed systematically. At last, the test data were processed and the electircal performance of aluminum alloy cable components under different environments conditions were compared and analyzed insightfully according to the processing results. The experimental results indicated that after undergoing the moisture and salt spray tests, the tin plating of the aluminum alloy cable components demonstrated no significant blistering, wrinkling, or delamination; After the moisture test, the value of DC resistance of all cable components increased with the increase of wire diameters, and its increasing rate decreased; After the salt spray test, the values of DC resistance and voltage drop of almost all cable components were reduced; After the vibration test, the values of DC resistance of all cable components increased, and the increase values were less than 3.2%. In addition, the values of voltage drop of almost all cable components decreased. Terminal coating of aluminum alloy cable components has a certain protection against moisture and salt spray environment, and effectively avoids the formation of corrosion film, which reduces the impact of environment on the electrical performance of aluminum alloy cable components. DC resistance of aluminum alloy cable components is more sensitive to environmental tests than voltage drop. The effects of salt spray on the electrical performance of aluminum alloy cable components are more serious than that of moisture and vibration. However, due to the protection of the terminal coating, the variation value is less than 10%. |
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