High voltage suspension 120 kN electrical glass insulator U120BP-1 glass insulators
120kN standard disc suspension glass insulator U120BP-1 Jiangxi huayao electric Co.,ltd is professional in produce this item, the daily output of this item is 10000 pieces. |
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Structural composition:
Glass insulators are usually composed of iron caps, tempered glass pieces, and steel feet, which are bonded together with cement adhesive.
Glass insulator is a special insulation component used in overhead transmission lines to provide insulation and support for wires.
Main types of glass insulator:
Glass insulator is including standard type, pollution resistant type, DC type, spherical type, aerodynamic type, ground wire type, and contact network for electrified railways Jiangxi Huayao electric Co.,ltd produce standard type glass insulator 40-550Kn, Pollution resistant type 70-400Kn, mutil-umbrella type 120-330kN, Glass insulator aerodynamic type 120-300kN, ground wire type. |
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Following is pollution resistant type glass insulator 40-550Kn:
Main technical parameters (GB and IEC) of stain resistant disk suspension type glass insulator | |||||||||||
IEC type | Diameter D (mm) | spacing H (mm) | creepage distance L(mm) | size of coupling (mm) | Mechnical failing load (kN) | Mechnical routine test (kN) | Power frequency withstand voltage DRY (kV) | Power frequency withstand voltage WET (kV) | lighting impulse withstand voltage (kV) | Min power frequency puncture voltage (kV) | Net weight per unit (kg) |
U70BP/146 | 260 | 146 | 400 | 16 | 70 | 35 | 80 | 45 | 110 | 130 | 5.00 |
U70BLP/146 | 280 | 146 | 450 | 16 | 70 | 35 | 85 | 50 | 125 | 130 | 5.50 |
U70BP/146 | 320 | 146 | 550 | 16 | 70 | 35 | 90 | 55 | 140 | 130 | 7.50 |
U100BLP/146 | 260 | 146 | 400 | 16 | 100 | 50 | 80 | 45 | 110 | 130 | 5.00 |
U100BLP/146 | 280 | 146 | 450 | 16 | 100 | 50 | 85 | 50 | 125 | 130 | 5.50 |
U100BP/146 | 320 | 146 | 550 | 16 | 100 | 50 | 90 | 55 | 140 | 130 | 7.50 |
U120BLP/146 | 260 | 146 | 400 | 16 | 120 | 60 | 80 | 45 | 110 | 130 | 5.00 |
U120BP/146 | 280 | 146 | 450 | 16 | 120 | 60 | 85 | 50 | 125 | 130 | 5.50 |
U120BP/146 | 320 | 146 | 550 | 16 | 120 | 60 | 90 | 55 | 140 | 130 | 7.50 |
U160BSP/155 | 280 | 155 | 450 | 20 | 160 | 80 | 85 | 50 | 125 | 130 | 7.00 |
U160BP/170 | 280 | 170 | 450 | 20 | 160 | 80 | 85 | 50 | 125 | 130 | 7.20 |
U160BLP/170 | 320 | 170 | 550 | 20 | 160 | 80 | 90 | 55 | 140 | 130 | 9.20 |
U160BP/155 | 320 | 155 | 550 | 20 | 160 | 80 | 90 | 55 | 140 | 130 | 9.00 |
U160BSP/146 | 320 | 146 | 550 | 20 | 160 | 80 | 90 | 55 | 140 | 130 | 8.80 |
U210BP/170 | 320 | 170 | 550 | 20 | 210 | 105 | 90 | 55 | 140 | 130 | 10.00 |
U240BP/170 | 320 | 170 | 550 | 24 | 240 | 120 | 90 | 55 | 140 | 130 | 10.50 |
U240BP/170 | 320 | 170 | 550 | 20 | 240 | 120 | 90 | 55 | 140 | 130 | 10.50 |
U300BP/195 | 390 | 195 | 710 | 24 | 300 | 150 | 95 | 60 | 150 | 130 | 14.00 |
U300BP/195 | 380 | 195 | 635 | 24 | 300 | 150 | 95 | 60 | 150 | 130 | 14.00 |
U420BP/205 | 380 | 205 | 620 | 28 | 420 | 210 | 90 | 55 | 140 | 130 | 16.50 |
U550BP/240 | 380 | 240 | 650 | 32 | 550 | 275 | 95 | 55 | 145 | 130 | 20.50 |
Product name: Glass insulator | Model number:U120BP-1 |
Material: fiberglass | Application: high voltage |
Rated voltage: 33kV | Product name: high voltage insulator |
Brand name: Huayao | Usage:Transmission lines |
Application: insulation | Rated voltage: 12kV |
Place of origin: Jiangxi, China | Certificate:ISO9001 |
Standard: IEC60383 | Color: Jade green |
Product Details
120kN standard disc suspension glass insulator U120BP-1 Place of Origin: China Brand name: HUAYAO Certification: ISO9001 Daily output: 10000 pieces 6 pieces in wooden case, then put in pallet. Payment & Shipping Minimum Order Quantity: 10 pieces Packaging Details: normal export packaging Supply Ability: 50000pcs Delivery Port: Ningbo,Shanghai Payment term: TT, L/C, FCA |
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Quick Detail:
Glass Fog Profile Suspension Insulators LXHP-120 / U120BP-1 Dimensions Diameter (D): 320mm Spacing (H): 146mm Creepage Distance: 550mm Coupling Size: 16mm Mechanical Values Mechanical Failing Load: 120kN Tension Proof: 60kN Electrical Values Dry Power-frequency Withstand Voltage: 85kV Wet Power-frequency Withstand Voltage: 50kV Dry Lightning Impulse Withstand Voltage:125kV Puncture Withstand Voltage: 130kV Radio Influence Voltage Data Test Voltage RMS to Ground: 10kV Maximum RIV at 1000 kHz: 50μV Packing and Shipping Data Net Weight, Approximate: 5.5kg |
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What is the advantage of glass insulator:
Good insulation performance
Due to the insulation properties of glass materials themselves, they can effectively prevent current leakage in high-voltage transmission lines. Moreover, the insulation performance of glass insulators is relatively stable and will not significantly decrease over time, providing reliable guarantees for long-term stable power transmission.
Zero value self explosion
This is a very significant feature of glass insulators. When the insulation performance of glass insulators decreases to a certain extent, that is, when a "zero value" situation occurs, under the action of operating voltage, the glass insulators will automatically break (self destruct). This feature enables operation and maintenance personnel to easily detect faulty insulators, facilitate timely replacement, and greatly improve the safety and reliability of transmission line operation. Compared to other types of insulators, this self detection and warning function is a unique advantage of glass insulators.
The Production process flow:
The production process of glass insulators in Jiangxi Huayao Electric Co.,Ltd is as follows:
Mix raw material=>melt glass liquid=>press to glass insulator shape=> tempering treatment=>cold and shock test=> Glue assembly=> routine test and other test=> Finished products package.

Standard of glass insulator:
The tests have been performed in accordance with:GB/T1001.1-2021 Insulators for overhead lines with a norminal voltage above 1000V Part1: Ceramic or glass insulator units for a.c. systems Definitions, test methods and acceptance criteria (IEC 60383-1:2021 MOD)
GB/7253-2019 Insulator for overhead lines with a nominal voltage above 1000V-Ceramic or glass insulator units for a.c. systems-Characteristics of insulator units of cap and pin type (IEC 60305:2021 MOD)
IEC 60383-1:2023 Insulators for overhead lines with a norminal voltage above 1000V
IEC 60120:2020 Dimensions of ball and socket couplings of string insulator units
Jiangxi Huayao electric Co.,ltd strictly compliance with above standard. We do the factory test report as above standard.
We always do following test for each products:
1. Verification of the Dimensions
2. Verifications of Displacements
3. Locking system test
4. Galvanized test
5. Thermal shock test
6. Mechanical Failing Load Test
7.Power frequency puncture withstand test

Application Fields:
Glass insulators are widely used in high-voltage and ultra high voltage transmission lines, including transmission lines with voltage levels of 110kV, 220kV, 500kV, and even higher. They can be seen in urban power supply networks, cross regional transmission projects, and output lines of large power plants. For example, in the transmission lines connecting large hydropower stations and urban power grids, glass insulators play a crucial role in ensuring the safe and efficient transmission of electricity to thousands of households.
Customer visit:
