High Voltage Air Powered Standard Disc Suspension Toughened Glass Insulators
High Voltage Air Powered Standard Disc Suspension Toughened Glass Insulators
High Voltage Air Powered Standard Disc Suspension Toughened Glass Insulators
High Voltage Air Powered Standard Disc Suspension Toughened Glass Insulators
High Voltage Air Powered Standard Disc Suspension Toughened Glass Insulators

High Voltage Air Powered Standard Disc Suspension Toughened Glass Insulators

high-voltage glass insulator is a device made from toughened glass, designed to support, separate, or contain electrical conductors on high-voltage power lines and in substations while preventing the unwanted flow of current to the ground. High voltage glass insulators play a critical role in preventing electrical leakage, ensuring the safe and efficient transmission of electricity over long distances. they are commonly used in substations, transmission towers, and other high-voltage equipment to provide a barrier between the live conductors and the supporting structures.
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high voltage glass insulators are specialized components used in electrical power systems to provide insulation and support for overhead power lines and transmission equipment. these insulators are designed to withstand the high voltages typically found in transmission and distribution networks, which can range from tens of thousands to hundreds of thousands of volts.

the insulators are usually made from high-quality glass or ceramics that have excellent electrical insulating properties. they are shaped as elongated units with a series of grooves or sheds along their surface, which helps to prevent the buildup of contaminants like dust, pollution, and moisture. the sheds create a longer path for potential electrical discharge, reducing the likelihood of flashovers and maintaining a high level of insulation even under adverse conditions.


The Key Feature: Toughened Glass These aren't made from ordinary glass. They are manufactured from soda-lime or borosilicate glass that undergoes a thermal "toughening" process. •  The Process: The glass is heated to a high temperature and then rapidly cooled with air.  •  The Result: The outer surface cools and solidifies first, while the interior remains molten longer. As the interior cools and contracts, it pulls on the already-solid outer shell, putting it under high compressive stress.  •  The Benefit: This makes the glass incredibly strong. A mechanical blow that would shatter ordinary glass must first overcome this built-in compressive stress before it can break the insulator.


Common Types of High-Voltage Glass Insulators
Suspension Insulator (or Disc Insulator):

Purpose: Used to suspend the conductor from transmission towers. They are the most common type on high-voltage lines.
Design: Multiple glass discs are connected in a "string." The voltage rating and mechanical strength of the string are determined by the number of discs.
Advantage: If one disc shatters, the remaining discs in the string can still support the line, and the broken unit is easily visible for replacement.

Nooa glass insulator Catalog
basic type minimum mechanical failing load(kn) nominal diameter d(mm) nominal spacing p(mm) nominal creepage distance (mm) standard coupling wet power frequency withstand voltage (kv) dry lightning impulse withstand voltage (kv) power frequency puncture voltage (kv) radio interference voltage (μ v) 10kv 1mhz corona visual test p/c kv power frequency electric arc voltage impulse puncture voltage (p.u) net weight (kg)

u40b

40 178 110 190 11 25 50 90 50 18/22 0.12s/20ka 2.8 2.1
u70bs-PSV70A 70 255 127 320 16 40 100 130 50 18/22 0.12s/20ka 2.8 3.5
u70bl 70 255 146 320 16 40 100 130 50 18/22 0.12s/20ka 2.8 3.6
u100bs 100 255 146 320 16 40 100 130 50 18/22 0.12s/20ka 2.8 4
u120b 120 255 146 400 16 40 100 130 50 18/22 0.12s/20ka 2.8 4
u160bs 160 280 146 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 6.5
u160bm 160 280 155 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 6.6
u160bl 160 280 170 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 6.7
u210b 210 280 170 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 7.2
u240b 240 280 170 400 20/24 45 110 130 50 18/22 0.12s/20ka 2.8 7.2
u300b 300 320 195 485 24 50 130 130 50 18/22 0.12s/20ka 2.8 10.6
u420b 420 360 205 550 28 80 140 140 50 18/22 0.12s/20ka 2.8 16
u550b 550 380 240 600 32 55 140 140 50 18/22 0.12s/20ka 2.8 21.5

CTV254

(PS70E)

70
 255
 127
 320
 16
 40
 100
 130
 130
 18/22
 0.12s/20ka
 2.8
 3.5
CTV175
 40
 178 110 190 11 25 50 90 50 18/22 0.12s/s20ka 2.8 2.1

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Company profile

Who We Are?

Nooa Electric Co., Ltd. - Chinese professional electrical insulators manufacturer with 21+ experience, covering an area of 70,000 square meters, and construction area is 50,000 square meters. There are more than 200 employees, including 25 technicians. The production capacity 3500000 pieces per year, and now setting up the new kiln and lines up to 10500000 pieces per year. We have 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 electrical insulator standard committee.


What We Have?

Certificates & Reports: INTERTK, SGS, BV Certificates,Type Test Certificate.

Main Electric Insulators : Standard-type glass insulator (u40(ctv175)/u70(ctv254, ps70e)/u120/u160/u210/u300) , antipollution-type glass insulators (u120bp/u160bsp/u210bp), aerodynamic type glass electrical insulators (ug70bsa/u100bsa/u120bla), multi-umbrella type electric insulators, ground-wires type glass power line insulators (u70cn/u100cn/u120c), post insulator for line, pin glass insulator. Products are mainly used for transmission line insulation, suspension, support, tension conductors. They are divided into 5 major series: The standard type glass insulator 40-550kn, filth-resistant type glass insulators 70-420kn, aerodynamic type glass electrical insulators 120-300kn, multi-umbrella type electric insulators 120-300kn, and ground circuit type high voltage insulators, able to be used for line voltage from 10kv～1000kv.


Core Technology:

Automation Equipment: Siemens fully automatic feeding, stamping, temperature equalization, tempering, hot and cold shock control system.
Independent Product Model: U160BP/146/380/450, U160BP/155/380/450, U210BP/170/420/550 and U300BP/195/420/550.
Advanced Klin: Germany's new generation kiln control system, equipped with brand-new sensors and actuators, and equipped with a high-precision automatic batching system.
Qualification: Passed the quality, environment and occupational health system certification and obtained a number of invention patents.


Goal:

To be the world's largest glass insulators manufacturer.

Electric Insulators Certificates

Are u the electric insulators factory or trading company?
China Leading Electric Insulators Factory founded in 2002
What're your main power insulators?
Powerline Electric Insulators (glass insulators, porcelain insulators, composite insulators ), the fittings and hardwares of all kinds for high-voltage applications and related products.
Can I get some glass insulators samples?
Yes, powerline glass insulator sample order is available for quality check and market test.
What's your payment terms?
We usually accept all kinds of payment terms, T/T, L/C, Western Union.
How can you control your glass power line insulator quality?
For each glass insulator production processing, we have a complete QC system for the chemical composition, physical and electrical properties. After production, all glass power line insulators will be tested according to related standards, and the ex-factory test reports will be sent along with shipment documents.
Does your company accept customization?
We accept OEM service.
What's your warranty terms?
We offer 24 months warranty terms.
Do you have glass electrical insulators in stock?
Depends on your request, we have standard models (CTV254 & CTV175, U40B U70B U120B U160BL U240B U300B ) in stock. Some special product and big order will be newly produced according to your order.

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Contact Us

Room 2221, 22nd Floor, Building 1, Wanxiang Times Garden, No. 676, Renmin East Road, Furong District, Changsha City, Hunan Province, China
Phone : 0086 186-848-89358
Whatsapp : +8615274981317  
Email : info@nooaelectric.com
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