Product Structure
Power Line Insulators
ANSI 57-1 C29.6 Electrical Ceramic Line Post Insulator Porcelain 25kv Insulators
Share the model, quantity, drawing, destination and project requirement for a focused response.
Product Overview
ANSI 57‑1 Line Post Porcelain Insulator is a high‑strength vertical post insulator designed for 25kV overhead power distribution lines, fully compliant with ANSI standards for North American power grids. It delivers stable cantilever mechanical bearing capacity, long creepage distance and superior anti‑pollution insulation performance for pole‑mounted high‑voltage circuits.
## Core Parameters
Compliance Standard: ANSI, IEC, CE, ISO
Leakage Distance: 14 in (356 mm)
Dry Arcing Distance: 6 1/2 in (165 mm)
Cantilever Strength: 2,800 lbs (12.5 kN)
Routine Cantilever Test Load: 1,000 lbs (5 kN)
Rated Application Voltage: 25 kV
Low Frequency Dry Flashover Voltage: 80 kV
Low Frequency Wet Flashover Voltage: 60 kV
Positive Critical Impulse Flashover Voltage: 130 kV
Negative Critical Impulse Flashover Voltage: 155 kV
RMS Test Voltage to Ground: 15 kV
Max RIV at 1000kHz: 100 μV
Product Features
- - 12.5kN stable cantilever strength to withstand lateral wire loads
- - 356mm long leakage distance for excellent anti‑fouling performance
- - Reliable dry, wet and lightning impulse insulation capacity
- - Low radio interference to guarantee stable grid operation
- - Dense porcelain body resists UV, salt fog and acid rain corrosion
- - Standard ANSI design for direct matching North American 25kV power projects
Performance & Dimensions
Application Area
- 25kV overhead medium‑high voltage distribution lines
- Concrete & steel utility pole vertical mounting
- Coastal, industrial and medium‑pollution power transmission zones
- Municipal, rural and industrial overhead power infrastructure
- ANSI standard North American power distribution engineering
Production Workshop
Inquiry Now
Send the model, drawing, BOM or project specification. Our team will respond around the actual selection points.
Open Full Enquiry Page
