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Double-umbrella structure: The glass components adopt an upper and lower umbrella structure, with the upper umbrella being larger and the lower umbrella smaller. The upper umbrella is disc-shaped with a streamlined surface to facilitate the removal of dirt from the upper surface by rainwater and natural wind; the lower umbrella is inverted bowl-shaped, with a convex arc on the outside and a concave arc on the inside. A circular groove is provided at the top of the inner side, where airflow easily forms a spiral airflow to blow away dirt, resulting in a good self-cleaning effect.
Keywords:
U70BSD
Product Details
Structural Design
Double-umbrella structure: The glass components adopt an upper and lower umbrella structure, with the upper umbrella being larger and the lower umbrella smaller. The upper umbrella is disc-shaped with a streamlined surface to facilitate the removal of dirt from the upper surface by rainwater and natural wind; the lower umbrella is an inverted bowl shape, with a convex arc on the outside and a concave arc on the inside. A circular groove is provided at the top of the inner side, where airflow easily forms a spiral airflow to blow away dirt, resulting in a good self-cleaning effect.
Drip ring: A drip ring is provided at the bottom edge of the upper umbrella. When rainwater flows into the drip ring, it forms water droplets and drips down, preventing further moisture penetration to the inner side of the bottom of the upper umbrella insulator, ensuring a sufficient effective creepage distance.
Connecting components: Similar to other disc-type suspension insulators, it consists of an iron cap, steel foot, and glass components. The iron cap is glued to the top of the glass component, and the glass component has an inner hole in the middle, with the steel foot glued inside the inner hole. The iron cap and steel foot, as two poles, are connected to the iron tower and conductor of the overhead line through connecting hardware. Insulators are connected in series according to the voltage level. The ball head of the steel foot is connected to the ball socket of the iron cap, and locked with an "R" type locking pin, ensuring safe and reliable connection and convenient disassembly.
Performance Characteristics
Good fouling resistance: Through the double-umbrella structure design, natural wind and rain are used to clean surface fouling deposits. Meanwhile, structures such as the drip ring and the circular groove on the inner side of the lower umbrella effectively prevent moisture from entering the effective creepage distance, reducing fouling accumulation and thus improving the fouling resistance insulation level and reducing the incidence of flashover accidents.
Reliable electrical insulation performance: It has a large effective creepage distance and can meet the insulation requirements of transmission lines in polluted areas. Under normal operating conditions, it can withstand line voltage and prevent electrical faults such as flashover.
High mechanical strength: Using high-strength tempered glass and high-quality metal accessories, bonded together with cement adhesive, it has high mechanical strength and can withstand various external forces such as mechanical tension, wind, and vibration in transmission lines, ensuring that the insulator will not be damaged by mechanical stress during long-term operation.
Product Advantages
Easy to inspect and maintain: Like other toughened glass insulators, it has the characteristic of self-breaking at zero value. When defects or aging occur inside the insulator, causing the insulation performance to decrease to a certain extent, the glass component will automatically break, allowing operation and maintenance personnel to observe and detect it on the ground or from a helicopter, eliminating the need for pole-by-pole inspection, reducing labor intensity, and saving line maintenance costs.
Good comprehensive performance: The glass components use ordinary soda-lime-silica glass, formed by one-time pressing, with a relatively mature process. It also has good arc resistance and aging resistance, and its performance is stable after long-term operation, effectively ensuring the safe and reliable operation of transmission lines.
Application Scenarios : Mainly used in high-voltage, ultra-high-voltage, and extra-high-voltage transmission lines in polluted areas, as a key component for insulating and suspending conductors. It can effectively improve the operational reliability of transmission lines in polluted environments and ensure the safe and stable transmission of electricity. For example, it is widely used in transmission lines in areas with industrial dust, chemical plants, saline-alkali land, coastal areas, and foggy areas.
Main Technical Parameters of Double-Umbrella Disc-Type Suspension Toughened Glass Insulators
| Structural Type | Product Model | Mechanical Failure Load (kN) | Maximum Nominal Diameter D (mm) | Nominal Structural Height P (mm) | Minimum Nominal Creepage Distance (mm) | Standard Connection Mark | Unit Weight (kg) |
| Double Umbrella Type | U70BSD | 70 | 280 | 127 | 450 | 16 | 5.4 |
| U70BLD | 70 | 280 | 146 | 450 | 16 | 5.43 | |
| U100BSD | 100 | 280 | 127 | 450 | 16 | 5.4 | |
| U100BLD | 100 | 280 | 146 | 450 | 16 | 5.43 | |
| U120BLD | 120 | 280 | 146 | 450 | 16 | 5.43 | |
| U160BSD | 160 | 280 | 146 | 450 | 20 | 7.39 | |
| U160BMD | 160 | 280 | 155 | 450 | 20 | 7.43 | |
| U160BLD | 160 | 280 | 170 | 450 | 20 | 7.48 | |
| U210BD | 210 | 280 | 170 | 450 | 20 | 7.48 | |
| U240BD | 240 | 280 | 170 | 450 | 24 | 7.65 |
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Sichuan ANBO Electric Power Technology Co., Ltd.
Address: No. 5, Chuangye Road, Economic Development Zone, Mingshan District, Ya'an City, Sichuan Province
Tel:18246003390
Hotline:13795868660
Email:skye18246003390@163.com
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