10kV XLPE電纜冷縮中間接頭界面壓力計(jì)算分析
[Abstract]:In recent years, cold-shrink intermediate joints are widely used in 10 kV cross-linked polyethylene cable lines. Interfacial pressure is an important performance parameter of cold shrink intermediate joints. However, the international and domestic standards lack the guidance to measure the interfacial pressure and limit the numerical range of interfacial pressure. To some extent, it affects the quality control and performance test of cold shrink intermediate joint. Therefore, the theoretical calculation model of interface structure is established, and the theoretical calculation formula of interface pressure is derived, and the actual interface pressure is measured directly by using preset sensors with different sizes of cold shrink tubes from different manufacturers. The test results show that the interfacial pressure tends to increase after the joint is installed and tends to be stable after a few hours, and the relative error between the test data and the theoretical calculation value is small. The rationality of the theoretical calculation model and the validity of the theoretical formula are verified. The results can provide a reference for the quality detection of the interconnect of distribution network cable and improve the reliability of the cable line of distribution network.
【作者單位】: 清華大學(xué)電機(jī)工程與應(yīng)用電子技術(shù)系;清華大學(xué)深圳研究生院;廣州供電局有限公司;
【基金】:南方電網(wǎng)公司重點(diǎn)項(xiàng)目(K-GZM2014-030)~~
【分類號(hào)】:TM75
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