{"id":31,"date":"2023-04-03T15:35:20","date_gmt":"2023-04-03T07:35:20","guid":{"rendered":"https:\/\/electricalwire.wiki\/?p=31"},"modified":"2023-04-03T17:49:42","modified_gmt":"2023-04-03T09:49:42","slug":"enameled-aluminum-wire","status":"publish","type":"post","link":"https:\/\/electricalwire.wiki\/?p=31","title":{"rendered":"What are the reasons for the decrease of wire and cable insulation resistance?"},"content":{"rendered":"\n<p>Nowadays, wires and cables have been used in more and more fields, but in the process of operation, due to the interference of various external factors or improper construction operations, it is easy to cause various cable failures, and the insulation coefficient will also be affected by various factors. The impact is reduced, thus causing leakage and electric shock accidents. Next, I will tell you about the reasons for the decrease in the insulation resistance of wires and cables.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"340\" src=\"https:\/\/electricalwire.wiki\/wp-content\/uploads\/2023\/04\/power-cable.png\" alt=\"\" class=\"wp-image-92\" srcset=\"https:\/\/electricalwire.wiki\/wp-content\/uploads\/2023\/04\/power-cable.png 720w, https:\/\/electricalwire.wiki\/wp-content\/uploads\/2023\/04\/power-cable-300x142.png 300w, https:\/\/electricalwire.wiki\/wp-content\/uploads\/2023\/04\/power-cable-520x245.png 520w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>During the operation of wires and cables, the increase of external temperature will cause ion migration inside the wires, resulting in smaller and smaller insulation resistance values of cables, affecting their insulation performance, and easily causing dangers such as leakage and electric shock, which endanger personal safety. Therefore, it is necessary to avoid heat sources around the wires and cables, and reserve enough heat dissipation space.<\/p>\n\n\n\n<p>In addition, if the wire and cable are used in a high-humidity environment, water vapor will also adhere to the surface of the insulating layer, reducing the insulation of the wire and cable, increasing the risk of electric leakage of the wire and cable, and even causing the insulation layer to be broken down in severe cases. Therefore, Asia Cable reminds everyone that during the use of wires and cables, regular inspections must be carried out to detect abnormalities in time and take immediate measures to ensure the safety of electricity use.<\/p>\n\n\n\n<p>At the same time, when selecting wire and cable products in the early stage, products with high purity of insulating materials should be selected. If the material contains impurities, its insulation resistance will be affected. In addition, the surface of the insulation layer of inferior wire and cable products is prone to cracks and other phenomena, which will also lead to a decrease in insulation resistance. Therefore, choosing high-quality wire and cable products can fundamentally prevent some accidents from happening.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Due to the interference of various external factors or improper construction operations for electrical cables, it is easy to cause various cable failures.<\/p>\n","protected":false},"author":1,"featured_media":66,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[12,10],"class_list":["post-31","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical-wire","tag-cca","tag-electrical-wire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What are the reasons for the decrease of wire and cable insulation resistance? - Electrical cable &amp; wire<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/electricalwire.wiki\/?p=31\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the reasons for the decrease of wire and cable insulation resistance? 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