The Pole Top Pin is a robust line hardware fitting designed for mounting pin-type insulators on distribution and sub-transmission poles. Manufactured from high-strength steel, ductile iron, or composite materials, it provides secure mechanical support and ensures reliable electrical insulation for conductors in overhead power line construction. The pin is hot-dip galvanized or polymer-coated for superior corrosion resistance, making it suitable for long-term use in diverse environmental conditions.
Key Features
- Material: Forged steel, ductile iron, or fiber-reinforced composite.
- Coating: Hot-dip galvanized (85–100 μm) for corrosion protection.
- Threading: Standard 1”–1 ⅜” UNC threads to fit pin-type insulators per IEC/ANSI standards.
- Mechanical Strength: High tensile and bending strength to withstand conductor loads, wind, and vibrations.
- Mounting: Compatible with wooden, steel, or concrete poles; suitable for pole-top or crossarm installations.
- Voltage Application: Designed for overhead distribution lines up to 33 kV and sub-transmission up to 66 kV.
- Durability: Resistant to weathering, UV radiation, and environmental stress for extended service life.
