Siemens Energy composite long rod insulators up to 800 kV – Type 3FL - combine the highest levels of electrical insulation and mechanical tensile strength in a compact, lightweight one-piece housing design with two different sealing options depending on the customer requirements. All 3FL long rod insulators are designed and tested in compliance with the latest versions of IEC 61109, ANSI 29.11, ANSI 29.12 and CSA C411.4-16.
