HVDC converter tension insulators, 3FL composite long-rod platform, one-piece HTV silicone housing on ECR glass FRP rod

• Listed in the official product hierarchy as 'HVDC converter tension insulators 3FL' under HVDC — Arresters, Insulators & Resistors, complementing the 3FS HVDC converter post insulators
• Built on the 3FL composite long-rod platform: one-piece HTV silicone rubber housing, direct-injection molded — prevents partial discharges and provides hydrophobicity transfer for highest pollution performance
• Boron-free ECR glass FRP core rod — brittle-fracture resistant, hydrolysis- and acid-resistant — with forged-steel end fittings per IEC 61466-1 / ANSI C29.2 and an integrated grading ring
• Two family sealing options protect the triple point: system A (directly overmoulded, up to 210 kN) and system B (elastic silicone gel, 100 – 630 kN)
• HVDC-project-specific ratings — DC voltage class, SML, section length, creepage — are engineered per converter-station requirement and available on request