IEC Standard Electrical U120BS 127/146 70kN 120kN Porcelain Hollow Core Glass Insulator

• Customization: Available
• Application: High-voltage, Low-voltage, High-temperature
• Material: Semiconductor
• Structure: Shackle Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Driving, Electrical Installation
• Connection Method: Trough Type
• Size of Bearing Capacity: 210KN
• Certification: CCC, CE, ISO9001
• Color: Red
• Brand: Hblc
• Product Name: Suspension Porcelain Insulator
• Product Material: Porcelain, Fiber Glass, Ceramic, Silicone Rubber,
• The Material: Composite Polymer, HDPE
• Product Type: High Voltage, Low Voltage
• Use for: Electrical Equipment, Provide Mechanical Load
• Product Application: Power Transmission Line Supporting, Suspending,
• Product Color: Grey, Red, Silver, White, Brown
• Product Connection Method: Ball & Socket Type
• Usefor: Transmission and Distribution Lines, Overhead Line
• Category: Electric Power Fitting, Power Line Fitting
• Like Product: Overhead Line Fitting, Metal Fitting,
• Same Product: Fixing Fitting, Transformer / Wire Aeccessories
• Related Products: Substation Fitting, Cable Fitting, Hardware
• Keyword: Power Cable Overhead Line, Conductor
• Transport Package: Carton, Iron Pallet, Woven Bags, Box, Polybag
• Specification: Customized
• Trademark: LEICHENG
• Origin: China
• HS Code: 7326909000
• Production Capacity: 5000ton/Month

Product Description

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Insulator Product Deacription

The insulator is commonly called as porcelain vase, and it is the insulation part which is used to support the conductors. Insulators can ensure adequate insulation for wires, cross arms, and pole towers. It should be able to withstand the vertical load and horizontal tension of the conductor during operation. It also withstands corrosion from the sun, rain, climate change and chemicals. Therefore, insulators must have both good electrical properties and sufficient mechanical strength. The quality of insulators is very important to the safe operation of lines.
Insulators used in overhead lines commonly include porcelain insulator, pin type insulators, spool insulators, suspension insulators, cross arms insulators, rod insulators and tension insulators.

Classification Of Insulators:

 

1. According to different installation methods, they can be divided into suspension insulators and post insulators.
Suspension Insulator:
It is widely used in the insulation and mechanical fixing of high voltage overhead transmission lines and soft busbars of electric station and substation. Suspension insulators can be divided into disc suspension insulator and rod suspension insulator. Disc suspension insulator is the most widely used insulator for transmission lines
Post Insulator:
Mainly used for insulation and mechanical fixation of busbars and electrical equipment in distribution lines, power plants and substations. In addition, post insulators are often used as components of electrical equipment such as isolating switches and circuit breakers. Post insulators can be divided into pin type post insulators and rod type post insulators. Pin post insulators are mostly used in low-voltage distribution lines and communication lines, while rod post insulators are mostly used in high-voltage substations.



 

2. In accordance with the insulator material, there are porcelain insulators, glass insulators, composite insulators and porcelain composite insulators.
Porcelain insulator:
The insulator is an insulator made of electrical ceramics. Electrical ceramics are baked from quartz, feldspar and clay. The surface of porcelain parts of porcelain insulators is usually covered with enamel to improve its mechanical strength, waterproof infiltration and increase surface smoothness. Among various types of insulators, porcelain insulators are the most commonly used.
Glass insulator:
An Insulators made of tempered glass. Its surface is in a state of compressive prestress. If cracks and electrical breakdown occur, the glass insulator will break into small pieces on its own, which is commonly known as "self-explosion". This feature eliminates the need for "zero value" detection of glass insulators during operation.
Composite insulator:
Also called polymer insulator (Synthetic Insulator).The insulation part is an insulator composed of a fiberglass resin core rod (or core tube) and a sheath and shed made of organic materials.
It is characterized by small size, light weight, high tensile strength and excellent anti-pollution flashover performance. But its anti-aging ability is not as good as that of porcelain and glass insulators. Composite insulators include: rod type suspension insulators, Cross Arm Insulator, post insulators and hollow core insulators (ie composite bushings). Composite bushings can replace porcelain bushings used in a variety of power equipment, such as transformers, lightning arresters, circuit breakers, capacitive bushings and cable terminals. Compared with porcelain sleeves, it not only has the advantages of high mechanical strength, light weight and small dimensional tolerance, but also can avoid damage caused by explosion.
Porcelain composite insulator
An insulator that uses porcelain or glass as the inner insulator, high-temperature vulcanized silicone rubber umbrella material as the outer insulator, and all the porcelain or glass parts are covered.

3. According to the different voltage levels used, they can be divided into low-voltage insulators and high-voltage insulators.
Low-voltage insulators:
refers to insulators used for low-voltage distribution lines and communication lines.
High voltage insulator:
Refers to insulators used in high-voltage and ultra-high-voltage overhead transmission lines and substations. In order to meet the needs of different voltage levels, different numbers of single insulators (pieces) of the same type are usually used to form insulator strings or multi-section insulating pillars.

4. According to the different environmental conditions of use, they are divided into ordinary insulators and  anti-pollution insulator used in polluted areas.
Anti-pollution insulator:
The main measures are to increase or enlarge the insulator shed or ribs to increase the creepage distance of the insulator and improve the electrical strength of the insulator in a dirty state. At the same time, the structural shape of the shed is also changed to reduce the amount of natural dirt accumulation on the surface to improve the anti-pollution flashover performance of the insulator. The specific creepage distance of pollution-resistant insulators is generally 20% to 30% higher than that of ordinary insulators, or even more. Areas with frequent pollution flashovers in China's power grid are accustomed to using pollution-resistant insulators with a double-layer umbrella structure. Such insulators have strong self-cleaning capabilities and are easy to clean manually.

5. According to the carrying capacity, it is divided into multiple grades such as 40kN, 60kN, 70kN, 100kN, 120kN, 160kN, 210kN, 300kN, 400kN, 420kN, 550kN and so on.

6. According to the type of voltage used, AC insulators and DC insulators are divided.
AC insulator:
Mainly refers to disc insulators used in AC transmission.
DC insulator:
Mainly refers to disc insulators used in DC transmission. DC insulators generally have a longer creepage distance than AC pollution-resistant insulators, and their insulating parts have higher volume resistivity (not less than 10Ω·m at 50°C). Their connecting fittings should be equipped with sacrificial materials to prevent electrolytic corrosion. Electrodes (such as zinc sleeves, zinc rings).
 

 

7. According to the insulator used to support wires or ground wires, they are called wire insulators or ground wire insulators respectively.
Wire insulator:
Insulators are used to support or suspend conductors to keep them insulated from towers and the earth.
Ground wire insulator:
Insulators for insulation and support of overhead earth wires. Ground wire insulators usually consist of two parts: an insulator component and a discharge gap. The discharge gap consists of electrodes fixed on the insulator through bolts.

8. According to the connection method, there are two types: ball type and groove type.

9. Various special-purpose insulators, such as insulating cross arms, semiconductor glazed insulators, tensioning insulators for power distribution, bobbin insulators and wiring insulators, etc.

Glass Insulator
 

Molde ID	Fig	Electro mechanical failing load(kn)	Nominal Diameter	Nominal Height	Nominal Creepage Distance	Coupling Size (mm)	Power-frequency (Wet)	Lightning impulse withstand voltage	Power-frequency puncture voltage(kV)	Radio interfere	Visible corona foot/cap	Power frequency arc test	Impulse breakdown voltage	Net Weight (Kg)
UG40B110/190N (U40B)	1-3	40	178	110	190	11	25	50	90	50	18/22	0.12s/20kA	2.8	2.1
UG70B127/320N (U70BS)	1-3	70	255	127	320	16	40	100	130	50	18/22	0.12s/20kA	2.8	3.5
UG70B146/320 (U70BL)	1-3	70	255	146	320	16	40	100	130	50	18/22	0.12s/20kA	2.8	3.6
UG100B146/320N (U100BS)	1-3	100	255	146	320	16	40	100	130	50	18/22	0.12s/20kA	2.8	4
UG120B146/132N (U120B)	1-3	120	255	146	400	16	40	100	130	50	18/22	0.12s/20kA	2.8	4
UG160B146/400N (U160BS)	1-3	160	280	146	400	20	45	110	130	50	18/22	0.12s/20kA	2.8	6.5
UG160B155/400N (U160BM)	1-3	160	280	155	400	20	45	110	130	50	18/22	0.12s/20kA	2.8	6.6
UG160B170/400N (U160BL)	1-3	160	280	170	400	20	45	110	130	50	18/22	0.12s/20kA	2.8	6.7
UG210B170/400N (U210B)	1-3	210	280	170	400	20	45	110	130	50	18/22	0.12s/20kA	2.8	7.2
UG240B170/400N (U240B)	1-3	240	280	170	400	20/24	45	110	130	50	18/22	0.12s/20kA	2.8	7.2
UG300B195/485N (U300B)	1-3	300	320	195	485	24	50	130	130	50	18/22	0.12s/20kA	2.8	10.6
UG420B205/550N (U420B)	1-3	420	360	205	550	28	80	140	140	50	18/22	0.12s/20kA	2.8	16
UG550B240/620N (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). 420kN strength grade products include 400kN strength grade, and 550kN strength grade products include 530kN strength grade. 2. The connection structure shall comply with GB/T 4056-2008 (IEC60120:1984, MOD) and BS 3288 Part III. According to customer requirements, the locking pin can be either W pin or R pin. Unless otherwise specified, U70~U120 adopt W pin, others adopt R pin.

Application: Suitable for transmission and distribution lines
Advantage: The surface of glass insulator has high mechanical strength, and the surface is not easy to crack and the aging speed is slow, no need to measure insulation resistance during operation, low operation and maintenance cost
Applicable Standard: IEC, GB, BS, ANSI, AS or Customer's requirement

Type	Diameter (mm)	Structural Height (mm)	Creepage Distance (mm)	ANSI Level	Coupling Size (mm)	Mechanical& Electrical Strength (kN)	Tension Proof (kV)	Mechanical Impact Strength (N-m)	Low Frequency Dry Flashover Voltage (kV)	Low Frequency Wet Flashover Voltage (kV)	Min power Frequency Puncture Voltage (kV)	Net Weight Per Unit (kg)
U70B/146A	255	146	320	52-3-L	Type B	70	35	45	80	50	130	3.8
U100B/146A	255	146	320	52-3-H	Type B	100	50	45	80	50	130	3.8
U120B/146A	255	146	320	52-5-L	Type J	120	60	45	80	50	130	4.0
U120BP/146A	280	146	450	52-5	Type J	120	60	45	100	60	130	5.5
U140B/146A	255	146	320	52-5-H	Type J	140	70	45	80	50	130	4.0
U160B/146A	280	146	400	52-8-L	Type K	160	80	45	85	55	130	7.0
U160BP/171HA	330	171	550	52-8	Type K	160	80	45	105	65	130	9.0
U180B/146A	280	146	400	52-8-H	Type K	180	90	45	85	55	130	7.0
U230B/156A	280	156	400	52-3-L	Type K	230	115	45	85	55	130	7.0
U70C/146A	255	146	320	52-4-L	Clevis	70	35	45	80	50	130	4.0
U100C/146A	255	146	320	52-4-H	Clevis	100	50	45	80	50	130	4.0
U120C/146A	255	146	320	52-6-L	Clevis	120	60	45	80	50	130	4.0
U140C/146A	255	146	320	52-6-H	Clevis	140	70	45	80	50	130	4.0
U160C/146A	280	146	400	52-10-L	Clevis	160	80	45	85	55	130	7.0
U180C/146A	280	146	400	52-10-H	Clevis	160	90	45	85	55	130	7.0
U230C/156A	280	156	400	52-12	Clevis	180	115	45	85	55	130	7.0
Order Information: 1.Voltage grade; 2.Specified mechanical load; 3.Creepage distance; 4.Power frequency withstand voltage; 5.Lightning Impulse Withstand Voltage; 6.Insulation distance; 7.Coupling type Ps. Different end fittings could be supplied as customer requirements

 

Fields of application

Work Environment

Hebei Leicheng Electric Power Technology Co., Ltd. is a professional engaged in power transformers, high and low voltage switchgear and related products R & D, production, sales and service of science and technology enterprises.

Since its establishment, the company has been committed to the road of professional development. With strong technical force, advanced equipment at home and abroad, innovative concept and rich manufacturing experience, has passed ISO9000 certification, the use of CAD, to provide customers with suitable regional characteristics of environmental protection, energy saving, low-carbon, high-quality products to meet the basic requirements of the market and different customers. Products are also exported to Central Asia, Africa, Southeast Asia, the Middle East, South America and other countries and regions.

At present, the company mainly produces high voltage/low voltage distribution cabinets, prefabricated substations, distribution transformers, high voltage/low voltage switches and other products.

Various power fittings and accessories, such as transformer support frame, cable hoop, bolt, wire clamp, cross arm and other products are numerous. 

Steel products, such as H-shaped steel, channel steel, steel pipe, Angle steel, hot dip galvanized iron wire, etc., are also our main products!

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Certificates

Packaging & Shipping

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FAQ

 

Q: Are you a Manufacturer, factory or Trading company ?
A: Yes, We are engaging in the research and development, production and operation of transformer for over 10 years.

Q: What's your warranty terms?
A: We offer 12 months warranty time.

Q: Production Time?
A: In general, it take 4~6weeks and it depend on the different style.

Q: What's your payment terms?
A: Pay by T/T and  L/C is acceptable.

Q: How do you conduct quality control in your factory?
A: We implement 100% QC inspection to ensure every product is qualified. We have over 10 times QC inspections during the manufacturing process from raw material to the final products.Each of our unit has  3C  certificate. If you need any other Certificate, we can help you to apply it.

Q: Do you have the products in stock?
A: Normally no. All our products produce depending to your order quantity.

 Q: What should provide to make custom transformer ?
A: Technical drawing and technical specification document are the best, or you can tell us some details technical specification date as below "Quotation and Ordering Required Information".

Q: Could I have your catalog and price list for trial order in MOQ quantity?
A: All of our products are showing on Made-in-China or official website, you are always welcome to ask us to get more information directly.

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Related products can be found on our home page, or contact me directly, let me help you!
 

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