Line Post Insulators ANSI 57 Series

ANSI 57 Series Porcelain Line Post Insulators are designed to support conductors while providing electrical insulation on overhead distribution lines. Their rigid structure offers stable conductor support and helps maintain the required electrical clearances.

Specifications

• Standard: ANSI/NEMA C29.7, as applicable
• Models: 57-1, 57-2, 57-3 and other specified types
• Mechanical rating: Cantilever strength
• Electrical parameters: Application voltage, creepage distance and dry arcing distance
• Dimensions: Overall height, shed diameter and mounting dimensions
• Mounting: Pole, crossarm or bracket configuration, depending on model