Electrical Power Insulators – Suspension Porcelain Insulator ANSI, Class 52-9, ANSI 52-9 A

The following suspension insulators comply with the ANSI standard. The glaze colors of the insulators are brown or light gray.

Dimensions:

Diameter (D): 4 3/4 Inches (121mm)

Spacing (H): 6 1/4 Inches (159mm)

Leakage Distance: 7 Inches (178mm)

Dry Arcing Distance: 4 Inches (102mm)

Coupling Size: Type B

Mechanical Values:

Combined M&E Strength: 10,000Pounds (44kN)

Impact Strength: 44 Inch-pounds (5Nm)

Routine Proof Test Load: 5,000Pounds (22kN)

Time Load Test Value: 6,000Pounds (27kN)

Maximum Working Load: 5,000Pounds (22kN)

Electrical Values:

Low Frequency Dry Flashover Voltage: 60kV

Low Frequency Wet Flashover Voltage: 30kV

Critical Impulse Flashover Voltage, Positive: 100kV

Critical Impulse Flashover Voltage, Negative: 90kV

Low Frequency Puncture Voltage: 80kV

Radio Influence Voltage Data:

Test Voltage RMS to Ground: 7.5kV

Maximum RIV at 1000 kHz: 50μV

Packing and Shipping Data:

Net Weight, Approximate: 2.6kg