PRODUCT OVERVIEW
ANSI 57-2 Line Post Porcelain Insulator is a high-strength vertical post insulator designed for 35kV 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: 22 in (559 mm)
Dry Arcing Distance: 9 1/2 in (241 mm)
Cantilever Strength: 2,800 lbs (12.5 kN)
Routine Cantilever Test Load: 1,000 lbs (5 kN)
Rated Application Voltage: 35 kV
Low Frequency Dry Flashover Voltage: 110 kV
Low Frequency Wet Flashover Voltage: 85 kV
Positive Critical Impulse Flashover Voltage: 180 kV
Negative Critical Impulse Flashover Voltage: 205 kV
RMS Test Voltage to Ground: 22 kV
Max RIV at 1000kHz: 100 μV
Compliance Standard: ANSI, IEC, CE, ISO
Leakage Distance: 22 in (559 mm)
Dry Arcing Distance: 9 1/2 in (241 mm)
Cantilever Strength: 2,800 lbs (12.5 kN)
Routine Cantilever Test Load: 1,000 lbs (5 kN)
Rated Application Voltage: 35 kV
Low Frequency Dry Flashover Voltage: 110 kV
Low Frequency Wet Flashover Voltage: 85 kV
Positive Critical Impulse Flashover Voltage: 180 kV
Negative Critical Impulse Flashover Voltage: 205 kV
RMS Test Voltage to Ground: 22 kV
Max RIV at 1000kHz: 100 μV
