U70BL U70BLP Electrical Disc Type Glass Insulator
U70BL U70BLP Electrical Disc Type Glass Insulator
U70BL U70BLP Electrical Disc Type Glass Insulator
U70BL U70BLP Electrical Disc Type Glass Insulator
U70BL U70BLP Electrical Disc Type Glass Insulator

U70BL U70BLP Electrical Disc Type Glass Insulator

diameter: 255mm height: 146mm creepage distance: 320mm u70b disc-type glass insulator is a type of electrical insulator used to support and isolate electrical conductors (such as overhead power lines) from their supporting structures, which are often made of metal. these insulators are commonly used in high-voltage and medium-voltage power distribution systems.come to choose nooa industrial glass insulators for your electrical systems now.
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a disc-type  tempered glass insulator is a type of electrical insulator used to support and isolate electrical conductors (such as overhead power lines) from their supporting structures, which are often made of metal. these insulators are commonly used in high-voltage and medium-voltage power distribution systems

the disc-type glass insulator is characterized by its shape, which resembles a stack of cylindrical discs or disks. these discs are often made of glass or ceramic materials that have high dielectric strength, meaning they can resist the flow of electrical current. the insulator's design helps prevent the flow of electricity from the conductor to the supporting structure and provides an effective insulation barrier even in challenging weather conditions.



each disc in the insulator is typically cemented together with other discs to form a sturdy and reliable structure. the glass disc insulator is mounted on a metal or concrete structure, allowing the electrical conductor to pass through its center without coming into direct contact with the supporting material.

the primary function of the disc-type glass insulator is to ensure that electricity flows through the conductor without being leaked to the supporting structure or the ground. this is particularly important to prevent electrical arcing, which can damage equipment, cause power outages, and pose safety risks.


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
u120b 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

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.



Company profile

nooa electric co., ltd. is located in luxi county electric porcelain industrial park, pingxiang, jiangxi, covering an area of 70,000 square meters, and construction area is 50,000 square meters since its establishment in december, 2002.there are more than 200 employees, including 25 technicians.


nooa 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.


nooa is a national demonstration enterprise for the transfer and transformation of major scientific and technological special achievements, having established  "industry-university-research" cooperative relationship with nanchang university and nanchang hangkong university, implementing 03 and 05 special projects with nanchang hangkong university to create an intelligent manufacturing line for uhv glass insulators.


we have always adhered to the business philosophy of "serving society and contributing to the country", and adhered to the development strategy of "relying on mechanism innovation to introduce high-quality talents and relying on high-quality talents to develop new products", attracting many industry technical experts from hunan, jiangxi, xi'an and other places to built an excellent technology research and development team, and participate in the company's product innovation and product standard formulation. nooa company has successively established jiangxi provincial uhv glass insulator engineering research center and jiangxi provincial high-strength amorphous insulating material technology center.


what's more important is we pay special attention to new product research and development and independent innovation, and has long adhered to the integration of production, education and research. it has many years of good cooperative relations with hunan university,nanchang university, nanchang hangkong university and other colleges and universities, and on the basis of independent innovation, it also has a good cooperative relationship with domestic well-known industry colleagues in the field of technology.


Our Certificate
Are u the factory or trading company?
Factory founded in 2002
What're your main products?
insulators, the hardware of all kinds for high-voltage applications and related products.
Can I get some samples?
Yes, 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 quality?
For each production processing, we have a complete QC system for the chemical composition, physical and electrical properties. After production, all the goods 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 the products in stock?
Depends on your request, we have standard models in stock. Some special product and big order will be newly produced according to your order.

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