glass suspension insulator U300B

Dimensions
Nominal Diameter (mm):320
Nominal Creepage Distance (mm):485
Nominal Structure Height (mm):195

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Description

Mechanical Values
Tensile Load Test (KN):150
Rated Mechanical Failing Load (kN):300

Electrical Values

Lightning Impulse Withstand Voltage (kV):125
Power Frequency Dry Flashover Voltage (kV):55
Power Frequency Wet Flashover Voltage (kV):130
Radio Interference Voltage at 10kV, 1MHz (μV):50

⚙️ Applications:
Overhead power transmission lines (35kV–1000kV)

High-voltage substations

Coastal, industrial, and desert zones with high pollution levels

Replacement of aged porcelain or composite insulators

Our glass insulators are widely exported and trusted by utilities worldwide for their long service life, low maintenance cost, and dependable performance.

China Glass Insulator Supplier

Glass insulator products:
are of high quality and exported to dozens of countries. Our products have product quality certification reports and meet ISO9001 quality standards.

Factory product testing pictures