Product Description
Ground Wire Glass Insulator is specifically designed for overhead transmission line shield wire systems, including conventional earth wires and OPGW (Optical Ground Wire) installations. It provides reliable mechanical support and electrical isolation for grounding conductors installed at the top of transmission towers. Manufactured from toughened low-alkali glass with a cap and pin suspension structure, this insulator ensures stable long-term performance in high-voltage transmission environments.
Product advantages:
1. Iconic advantage: Zero value self explosion, minimalist operation and maintenance. When tempered glass loses its insulation performance (zero value aging, internal cracking), it will automatically shatter, and line patrol personnel can detect the damage with the naked eye from a distance, without the need for power outages to conduct insulation withstand voltage preventive tests, greatly reducing the cost of power grid operation and maintenance; After fragmentation, the steel cap and steel feet still bite the fragments, and the remaining mechanical strength is ≥ 75%, so there will be no whole string breakage or disconnection accidents, and the operational safety is higher.
2. Stable electrical performance and extremely slow aging. The physical and chemical properties of glass material are stable, and the insulation strength deteriorates slightly after decades of operation; The surface is dense and smooth, with good hydrophobicity, and is not easy to adhere to dirt. The flashover voltage of dirt is 20%~30% higher than that of ceramic insulators, and it has stronger resistance to arc and lightning impact. There will be no hidden dangers such as hidden cracking of ceramic parts and slow deterioration inside that cannot be detected.
3. High mechanical strength and excellent thermal stability. Tempered prestressed structure with strong resistance to vibration, temperature fluctuations, and hail impact; The temperature difference between day and night, as well as the extreme cold and heat environment, are not prone to cracking; Lightweight, can reduce tower load and lower overall line cost
4. Long service life. Under normal operating conditions, the service life can reach 40-50 years, and long-term line operation data confirms that the aging rate is much lower than that of ceramic insulators.
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