220/264kV， Suitable for three-phase AC 50Hz high-voltage transmission systems, supporting long-term outdoor operation. The core rod is made of epoxy glass fiber, and the umbrella skirt is made of high-temperature vulcanized silicone rubber, reducing weight by 45% -50% compared to porcelain;
End crimping+double sealing process, with a bonding strength of ≥ 8MPa between the core rod and the sheath to avoid interface breakdown.
| Product model | Rated voltage（KV） | Rated bending load（KN） | Structure hight (mm) | Minimum arc distance (mm) | Minimum creepage distance (mm) | Lightning impulse voltage (peak) (KV) | 1 min power frequency wet voltage (KV) |
| FZSW-252/12 | 220 | 12 | 2400 | 2160 | 5500 | 1000 | 460 |
Transmission line: suspension and insulation of 220/264kV overhead line conductors, with 13-15 straight towers connected in series and 18 tension towers (increased to 20 in heavy ice areas);
Substation maintenance: Cooperate with live cleaning technology (leakage current ≤ 0.4mA) to achieve in-situ cleaning of contaminated insulators;
New energy grid connection: In the scenario of salt spray corrosion prevention for wind/photovoltaic substation collection lines, composite type is preferred to replace traditional porcelain series connection.
220/264kV suspension insulators, with their high mechanical strength, modular configuration, and environmental adaptability, have become the core components of ultra-high voltage transmission networks, especially playing a key role in the expansion of ultra-high voltage lines and the consumption of new energy.
