Changsha Power Electric Co.,Ltd.
                                                                                                           
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7 Years
Since 2019
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30kV Porcelain Line Post Insulator - ANSI 57-3 Class, 737mm Creepage Distance, 12.5kN Cantilever Strength

Price Negotiable
Price: Negotiable
MOQ: Negotiable
Delivery Time: 35DAYS
Brand: CPE
Product Description
Product Overview

30kV porcelain line post insulator designed for high voltage transmission applications, featuring ANSI standard compliance and robust construction for reliable performance in demanding electrical environments.

Technical Specifications
ANSI Class Creepage Distance Dry Arcing Distance Cantilever Strength Test Voltage to Ground
57-3 737 mm 311 mm 12.5 kN 30 kV
Construction Features
  • Manufactured from commercial-grade wet-process porcelain with glazed surface finish
  • Metal components made from malleable iron, ductile iron, steel, or aluminum
  • Ferrous parts galvanized per ASTM A153 standards for corrosion resistance
  • Available in standard brown color with gray option per ANSI Z55.1-1967
Performance Characteristics
  • Dry flashover voltage: 125 kV
  • Wet flashover voltage: 95 kV
  • Critical impulse flashover voltage: 200 kV positive
Manufacturing Advantages

Direct factory production ensures competitive pricing and flexible service options. We offer comprehensive OEM & ODM services with regular design updates and have extensive experience serving both domestic and international markets. Our decades of expertise in electrical product design, manufacturing, testing, and logistics guarantee reliable performance and timely delivery.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changsha Power Electric Co.,Ltd.
Location Room 3007, Building A, Shangcheng, No.47 Kaiyuan East Road Xingsha, Changsha city, Hunan Province.
Contact Person Meggy Li

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