High voltage suspension 70 kN electrical glass insulator U70BS glass insulators
Glass insulator is a special insulation component used in overhead transmission lines to provide insulation and support for wires. 70kN standard disc suspension glass insulator U70BS U70B/127 Suspension Insulator String Essential for Tower Insulation D255xH127mm Mechanical Load 70kN 70kN standard disc suspension glass insulator U70BS is a very common and popular glass insulator in Chinese market and overseas market such as Vietnam, Iran, Algeria etc. |
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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

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.
Following is standard type glass insulator 40-550Kn:
Main technical parameters (GB and IEC) of standard 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) |
U40B | 178 | 110 | 185 | 11 | 40 | 20 | 40 | 20 | 50 | 130 | 2.5 |
U70BL/146 | 255 | 146 | 320 | 16 | 70 | 35 | 70 | 40 | 100 | 130 | 3.5 |
U70BS/127 | 255 | 127 | 320 | 16 | 70 | 35 | 70 | 40 | 100 | 130 | 3.5 |
U100BL/146 | 255 | 146 | 320 | 16 | 100 | 50 | 70 | 40 | 100 | 130 | 3.5 |
U100BS/127 | 255 | 127 | 320 | 16 | 100 | 50 | 70 | 40 | 100 | 130 | 3.5 |
U120B/146 | 255 | 146 | 320 | 16 | 120 | 60 | 70 | 40 | 100 | 130 | 3.6 |
U120B/127 | 255 | 127 | 320 | 16 | 120 | 60 | 70 | 40 | 100 | 130 | 3.6 |
U160BL/170 | 280 | 170 | 400 | 20 | 160 | 80 | 75 | 45 | 110 | 130 | 6.5 |
U160B/155 | 280 | 155 | 450 | 20 | 160 | 80 | 75 | 45 | 110 | 130 | 6.3 |
U160BS/146 | 280 | 146 | 400 | 20 | 160 | 80 | 75 | 45 | 110 | 130 | 6.3 |
U210B/170 | 280 | 170 | 460 | 20 | 210 | 105 | 85 | 45 | 125 | 130 | 6.9 |
U210B/170 | 280 | 170 | 400 | 20 | 210 | 105 | 75 | 45 | 110 | 130 | 6.9 |
U240B/170 | 280 | 170 | 400 | 24 | 240 | 120 | 75 | 45 | 110 | 130 | 6.9 |
U240B/170 | 280 | 170 | 460 | 24 | 240 | 120 | 85 | 50 | 110 | 130 | 6.9 |
U300B/195 | 320 | 195 | 485 | 24 | 300 | 150 | 85 | 50 | 130 | 130 | 10.6 |
U420/205 | 360 | 205 | 550 | 28 | 420 | 210 | 90 | 55 | 140 | 130 | 16 |
U550B/240 | 380 | 240 | 620 | 32 | 550 | 275 | 95 | 55 | 145 | 130 | 21.5 |
Product name: Glass insulator | Model number:U70BS |
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: Place of Origin: China Brand name:HUAYAO Certification:ISO9001 70kN standard disc suspension glass insulator U70BS Daily output:10000 pieces 6 pieces in wooden case, then put in pallet.
Minimum Order Quantity: 10 pieces Price(usd):7.29 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 Standard Profile Suspension Insulators LXP2-70 / U70BS Diameter (D): 255mm Mechanical Failing Load: 70kN |
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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
Customer visit:
