Horizontal Clamp Top Cup Base Type Line Post Insulator ANSI 57-25

Horizontal Clamp Top Cup Base Type Line Post Insulator ANSI 57-25

The following line post insulators comply with the ANSI Standard. The glaze colors of the insulators are brown or light gray.


Dimensions:

Diameter (D): 7 1/2 Inches (190mm)

Height (H): 22 3/8 Inches (568mm)

Leakage Distance: 45 Inches (1145mm)

Dry Arcing Distance: 17 1/4 Inches (438mm)


Mechanical Values

Cantilever Strength: 2,800Pounds (12.5kN)

Cantilever Strength Routine Test: 1,000Pounds (5kN)


Electrical Values

Typical Application Voltage: 66kV

Low Frequency Dry Flashover Voltage: 175kV

Low Frequency Wet Flashover Voltage: 150kV

Critical Impulse Flashover Voltage, Positive: 290kV

Critical Impulse Flashover Voltage, Negative: 380kV


Radio Influence Voltage Data

Test Voltage RMS to Ground: 44kV

Maximum RIV at 1000 kHz: 200μV


Packing and Shipping Data

Net Weight, Approximate: 19.5kg