Composite longrod-the solution of future line insulation in China

A composite long rod insulator produced in the authors' laboratory is discussed. The insulator is made of porcelain and silicone rubber. Test results on the electrical and mechanical properties are reported. The insulator has many advantages, such as light weight, ease of manufacture, high mechanical strength, very good antipollution performance, no risk of internal puncture, and reduced need for service safeguarding. These advantages become more obvious in EHV and UHV lines.<
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