Audited Supplier
Diameter: 320mm | Height: 170mm | Creepage distance:550mm
U70BL is a glass insulator used for high-voltage transmission lines
Material: Tempered glass
Rated mechanical load: 70kN (approximately 7 tons)
Rated voltage: usually used for voltage levels of 35kV and above
Structure: Suspended structure, composed of iron cap, tempered glass umbrella plate, and steel feet
| Domestic designation | U100BLP | U100BLP1 | |
| QOCI Type | UG100B146/450H | UG100B146/550H | |
| Mechanical failing load | kN | 100 | 100 |
| Nominal Diameter D | mm | 280 | 320 |
| Nominal Spacing P | mm | 146 | 146 |
| Creepage distance L | mm | 450 | 550 |
| Socket coupling | mm | 16 | 16 |
| Wet power frequency withstand voltage | kv | 50 | 55 |
| Dry lightning impulse withstand voltage | kv | 125 | 140 |
| Power frequency puncture voltage | kv | 130 | 130 |
| Radio interference voltage(10kV 1MHz) | μv | 50 | 50 |
| Corona visual test P/C | kv | 18/22 | 18/22 |
| Power frequency electric arc voltage | ka | 0.12S/20kA | 0.12S/20kA |
| Impulse puncture voltage | P.U | 2.8 | 2.8 |
| Net weight per unit | kg | 5.8 | 9.2 |
Key Features of Glass Electric Insulators:
Superior Dielectric Strength: Glass provides excellent electrical insulation, minimizing the risk of current leakage and ensuring safety.
Durability: Resistant to weathering, UV radiation, and temperature fluctuations, glass insulators maintain their integrity over time.
Transparency: The clear nature of glass allows for straightforward visual inspections, facilitating maintenance and early detection of potential issues.
Advantages Over Other Materials:
Self-Cleaning Properties: The smooth surface of glass reduces the accumulation of dirt and pollutants, decreasing maintenance requirements.
Mechanical Strength: Engineered to withstand mechanical stresses, glass insulators are suitable for various environmental conditions.
Environmental Impact: Glass is recyclable, making it an eco-friendly choice for sustainable infrastructure projects.
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Jiangxi QOCI Electric Co.,Ltd.has been specialized in research and development of latest high-strength functional glass and power transmission insulators,which is the qualified supplier for State Grid Corporation of China and Southern State Grid Corporation of China,and is a participating unit of product standard formulation of the National Insulator Standard Committee.
The main products type are :standard-type insulator,antipollution-type insulator,aerodynamic type insulator,multi-umbrella type insulator,ground-wires type insulator,post insulator for line,pin insulator.Products are mainly used for transmission line insulation, suspension, support, tension conductors.Our products are divided into 5 major series: the standard type 40-550kN,filth-resistant type 70-420kN,aerodynamic type 120-300kN,multi-umbrella type 120-300kN,and ground circuit type,able to be used for line voltage from 10kV~1000kV.
