550kn Disc Suspension Glass Insulator
550kn Disc Suspension Glass Insulator
550kn Disc Suspension Glass Insulator
550kn Disc Suspension Glass Insulator
550kn Disc Suspension Glass Insulator

550kn Disc Suspension Glass Insulator

550kn Disc Suspension Glass Insulator are commonly used by utility companies and power grid contractors for long-span projects. Glass insulators are known for their high resistance to environmental factors such as uv radiation, moisture, and pollution. this resilience helps the insulator maintain its effectiveness over a long service life, even in challenging outdoor conditions.
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a disc suspension glass insulator is a type of electrical insulator primarily used in high-voltage transmission and distribution systems to support and isolate overhead power lines from their supporting structures. it is designed to withstand the electrical stresses, mechanical loads, and environmental conditions encountered in outdoor power transmission environments.

disc suspension glass insulators are commonly used in high-voltage transmission lines where the voltages are typically above 33 kv (kilovolts). they can be found in various electrical grid systems around the world, connecting power generation sources to distribution networks and substations.


unit weight
 21.5 kgs
creepage (l)
 600mm
transport package
 ply-wood case+pallet
diameter (d)
 380mm
coupling distance
 32
spacing (h)
 240mm
color
 light green
specification
 customers request


33kV glass electrical insulators

basic type figure no. 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

1-3 40 178 110 190 11 25 50 90 50 18/22 0.12s/20ka 2.8 2.1
u70bs 1-3 70 255 127 320 16 40 100 130 50 18/22 0.12s/20ka 2.8 3.5
u70bl 1-3 70 255 146 320 16 40 100 130 50 18/22 0.12s/20ka 2.8 3.6
u100bs 1-3 100 255 146 320 16 40 100 130 50 18/22 0.12s/20ka 2.8 4
u120bp 1-3 120 255 146 400 16 40 100 130 50 18/22 0.12s/20ka 2.8 4
u160bs 1-3 160 280 146 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 6.5
u160bm 1-3 160 280 155 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 6.6
u160bl 1-3 160 280 170 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 6.7
u210b 1-3 210 280 170 400 20 45 110 130 50 18/22 0.12s/20ka 2.8 7.2
u240b 1-3 240 280 170 400 20/24 45 110 130 50 18/22 0.12s/20ka 2.8 7.2
u300b 1-3 300 320 195 485 24 50 130 130 50 18/22 0.12s/20ka 2.8 10.6
u420b 1-3 420 360 205 550 28 80 140 140 50 18/22 0.12s/20ka 2.8 16
u550b 1-3 550 380 240 600 32 55 140 140 50 18/22 0.12s/20ka 2.8 21.5

CTV254

(PS70E)

1-3
 70
 255
 127
 320
 16
 40
 100
 130
 130
 18/22
 0.12s/20ka
 2.8
 3.5
CTV175
 1-3
 40
 178 110 190 11 25 50 90 50 18/22 0.12s/s20ka 2.8 2.1

note:
1. the product model is in accordance with gb/t 7253-2005 and jb/t 9683-2012 (iec60305:1995, mod). the 420kn strength grade product contains 400kn strength grade, and the 550kn strength grade product contains 530kn strength grade.

2. the connection structure is in accordance with gb/t 4056-2008 (iec60120: 1984, mod) and bs 3288 part

3. according to the customer's request, the locking pin can be w-pin or r-pin. unless otherwise specified, u70~u120 adopts w pin, and other uses r pin.

4. black marks are hot sellers-your best Glass insulators choice for overhead power lines

🌟 550kn Glass Insulators’ Key Features
Exceptional mechanical strength (550kN) — perfect for long-span and heavy-load transmission lines.
High dielectric stability — maintains insulation performance under high voltage and pollution conditions.
Impact-resistant toughened glass — ensures reliable performance and long service life.
Self-cleaning surface — minimizes contamination and reduces maintenance needs.
Safe failure mechanism — broken glass shatters into small, blunt pieces, avoiding line drops.


🏗️ 550kn Glass Insulators' Applications
Designed for EHV and UHV transmission networks (500kV–800kV)
Ideal for tension and suspension strings on main power lines
Suitable for mountainous, coastal, and high-wind zones
Commonly used by utility companies and power grid contractors for long-span projects

Toughened Glass Insulators' Certificates & Reports

33kV glass electrical insulators ISO

High Voltage Insulator Factory

33kV glass electrical insulators factory

33kV glass electrical insulators Packing

33kV glass electrical insulators stock

Glass Insulators Packing

33kV glass electrical insulators packing

Toughened Glass Insulator Exhibitions & Clients

33kV glass electrical insulators Russia exhibitionGlass Insulators
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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