Light Gray OEM ANSI 57-3 Porcelain Line Post Insulator - 737mm Creepage, 12.5kN Strength
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
35DAYS
Brand:
CPE
Product Description
Light Gray OEM ANSI 57-3 Porcelain Line Post Insulator
High-voltage porcelain insulator designed for transmission and distribution lines, featuring ANSI 57-3 classification with 737mm creepage distance and 12.5kN cantilever strength.
Product Overview
Line post porcelain insulators serve as insulating and supporting conductors in high-voltage transmission and distribution systems. This ANSI 57-3 compliant insulator offers superior performance with no puncture risk, high mechanical strength, excellent insulation properties, and strong anti-pollution capabilities.
Technical Specifications
| Parameter | Value |
|---|---|
| Catalog Number | 12003 |
| Figure Number | 3 |
| ANSI Class | 57-3S / 57-3L |
| Creepage Distance | 737 mm |
| Dry Arcing Distance | 311 mm |
| Cantilever Strength | 12.5 kN |
| Dry Flashover Voltage | 125 kV |
| Wet Flashover Voltage | 95 kV |
| Positive Critical Impulse | 200 kV |
| Negative Critical Impulse | 260 kV |
| Test Voltage to Ground | 30 kV |
| Maximum RIV at 1000kHz | 200 μV |
| Weight | 12 kg |
| Applicable Standard | ANSI C29.7 |
Performance Advantages
- Reasonable insulation structure with high reliability of interturn insulation
- Stainless steel flange with low magnetic inductivity and high resistivity
- Compact design with small volume and light weight for easy handling
- Convenient transportation and flexible installation options
- Low operating system stress (OSS) for extended service life
- Low temperature rise during operation
- High mechanical strength with strong weather resistance
- Outstanding crack resistance properties
- Low thermal expansion coefficient for dimensional stability
Applications
Ideal for high-voltage transmission and distribution lines, cross arm installations, and long rod suspension systems where reliable insulation and mechanical support are critical.
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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