{"id":7635,"date":"2025-10-28T03:23:36","date_gmt":"2025-10-28T03:23:36","guid":{"rendered":"https:\/\/www.raxpower.com\/?page_id=7635"},"modified":"2026-08-12T04:23:16","modified_gmt":"2026-08-12T04:23:16","slug":"%d0%ba%d0%be%d0%bc%d0%bf%d0%be%d0%b7%d0%b8%d1%82%d0%bd%d0%be%d0%bc%d1%83-%d0%b8%d0%b7%d0%be%d0%bb%d1%8f%d1%82%d0%be%d1%80%d1%83","status":"publish","type":"page","link":"https:\/\/www.raxpower.com\/ru\/overhead-line-insulator\/composite-insulator\/","title":{"rendered":"\u041a\u043e\u043c\u043e\u0437\u0438\u0442\u043d\u044b\u0439 \u0438\u0437\u043e\u043b\u044f\u0442\u043e\u0440"},"content":{"rendered":"
\n\t
\n\t\t
\n\t\t\t

Composite Insulator<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>
\n\t
\n\t\t
\n\t\t\t

Composite insulators electrically isolate live parts in power transmission and distribution systems, preventing current leakage to ground. They combine a fiberglass reinforced plastic (FRP) core rod for mechanical strength with a silicone rubber housing and weather sheds for electrical insulation and environmental protection. This construction withstands high-voltage applications, corrosion, and fatigue.<\/p>\n

Composite insulators are lightweight, simplifying installation and reducing transportation costs, while their hydrophobicity controls leakage current and prevents flashovers. They resist contamination, require minimal maintenance, and deliver long service life. Voltage ratings range from 11 kV to 1000 kV, with mechanical failing loads from 70 kN to over 500 kN. Advanced manufacturing\u2014including direct injection molding and integral vulcanization\u2014ensures void-free structures and secure connections through crimped end fittings of forged steel or aluminum alloy.<\/p>\n

Composite insulators outperform traditional glass and ceramic types, which are brittle and demand frequent inspection. Composite designs provide superior pollution resistance and installation flexibility, performing effectively in urban areas, coastal regions, deserts, and high-altitude locations. They comply with international standards including IEC 61109, IEC, IEEE, and ANSI, with approvals from organizations such as KEMA and State Grid Corporation of China. Selection should consider voltage rating, environmental conditions, tensile strength, creepage distance, and local contamination resistance requirements.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>