ANSI 57-31 Porcelain Line Post Insulator - 356mm Creepage Distance, 12.5kN Cantilever Strength for Transmission Lines
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
35DAYS
Brand:
CPE
Product Description
ANSI 57-31 Porcelain Line Post Insulator Overview
High-performance transmission line post porcelain insulator designed to ANSI 57-31 standards, featuring 356mm creepage distance and 12.5kN cantilever strength for reliable power distribution applications.
Product Specifications
| ANSI Class | Creepage Distance (mm) | Dry Arcing Distance (mm) | Cantilever Strength (kN) | Dry Flashover Voltage (kV) | Wet Flashover Voltage (kV) | Positive Impulse Flashover (kV) | Negative Impulse Flashover (kV) | Test Voltage to Ground (kV) |
|---|---|---|---|---|---|---|---|---|
| 57-31 | 356 | 165 | 12.5 | 70 | 50 | 120 | 155 | 15 |
Construction & Materials
- Manufactured from commercial-grade wet-process porcelain with full glazing (excluding firing surfaces)
- Gray finish available per ANSI Z55.1-1967 (R1973) standards
- Metal components made from malleable iron, ductile iron, steel, or aluminum
- Ferrous parts (excluding stainless steel) galvanized to ASTM A153 specifications
Professional Services & Support
Comprehensive Technical Support
- Professional power planning including capacity analysis, category selection, and technical consultation
- Complete order tracking with detailed production and sales process monitoring
- Dedicated after-sales service with user database and regular follow-up
- Free technical support available at any time
- OEM customization options available
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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