Durable Double-Umbrella Toughened Glass Insulator UG70B146

High Voltage Glass Insulators

The UG70B146/450D tempered glass insulator is a crucial component for overhead transmission lines, providing essential insulation and support for wires. Crafted from tempered glass, iron caps, and steel feet, this durable insulator is bonded with cement adhesive to ensure high performance and longevity.

Double Umbrella Design

The unique double umbrella skirt design features alternating large and small skirts, enhancing the insulator's creepage distance. This design significantly improves its insulation performance and anti-fouling ability, effectively preventing flashovers in harsh conditions like humidity and pollution.

Connection Structure

Featuring a ball socket and ball head structure, this insulator offers exceptional mechanical strength and flexibility. It can withstand various stresses and deformations during operation, and its design facilitates easy installation and replacement.

Technical Specifications

• Type: UG70B146/450D
• Diameter (D): 280mm
• Spacing (H): 146mm
• Creepage Distance: 450mm
• Coupling Size: 16mm
• Mechanical Failing Load: 70kN
• Mechanical Routine Test: 35kN
• Power Frequency Withstand Voltage (Dry): 80kV
• Power Frequency Withstand Voltage (Wet): 45kV
• Lighting Impulse Withstand Voltage: 120kV
• Min Power Frequency Puncture Voltage: 130kV
• Net Weight per Unit: 6.30kg

Applications

These glass insulators are suitable for high-voltage transmission lines, accommodating voltages from 10kV to 500kV. They comply with international standards such as GB, ANSI, BS, DIN, AS, and IEC, making them ideal for power transmission lines and substations.

Production and Quality Assurance

Jiangxi Huayao Electric Co., Ltd utilizes advanced production technologies and equipment from Germany and Italy to produce over 6 million pieces annually. Each product undergoes rigorous testing, including:

• Verification of Dimensions
• Verification of Displacements
• Locking System Test
• Galvanized Test
• Thermal Shock Test
• Mechanical Failing Load Test
• Power Frequency Puncture Withstand Test

Packaging and Shipping

Orders are packaged in standard export wooden cases and non-fumigation wooden boxes. Huayao offers a daily output of 10,000 pieces with a minimum order quantity of 10 pieces. Products are shipped from Ningbo or Shanghai ports, with payment terms including TT, L/C, and FCA.