Pinnacle Series™ Porcelain Line Post Insulators


Line post insulators are designed to provide rigid support of conducting cable while offering the maximum resistance to damage from electrical or mechanical events.

Horizontal and gain-base line post insulators are often used in applications to avoid the need to install a crossarm on the pole.

The clamp style units include a galvanized metal head which accepts standard trunnion style line clamps.

Technical Specifications

  • Specified Cantilever Load: Up to 2800 lbs.
  • Clamp Style: Per ANSI 29.7
  • Clamp Material: Galvanized Metal
  • kV Class: 15 – 46kV
  • Frequency: 50/60 Hz


Peak Demand’s Pinnacle Series porcelain insulators are manufactured using a wet porcelain process and cured in an environmentally controlled production facility to ensure a complete and even cure of the porcelain while also resulting in the highest quality surface finish.