132kv Glass Insulators Tension String Transmission Hardware Fitting

132kv Glass Insulators Tension String Transmission Hardware Fitting

132kV tension strings consist of toughened glass insulators and corresponding hardware fittings that together withstand mechanical tension, ensure insulation, and stabilize conductors in long-span transmission applications. A 132kV glass insulator tension string is a mechanical and electrical assembly used at tension points of overhead transmission lines. It includes disc-type toughened glass insulators combined with end fittings such as yoke plates, ball-end clevis, socket clevis, tension clamps, and other transmission line hardware. As a proven 132kV glass insulators and fitting supplier, Nooa Electric supplies tension string hardware sets tailored to line design parameters, conductor types (ACSR, AAAC), and environmental conditions.
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Key Components of 132kV Tension String Hardware

The tension string is made from glass disc insulators, tension clamps, yoke plates, shackles, and connecting hardware designed to handle high tensile loads and electrical stress.

A complete set typically includes:
1. Toughened glass disc insulators (e.g., U70B, U120B, U160B types)
2. Tension clamps for conductor anchoring
3. Yoke plates or strain plates to keep string geometry stable
4. Ball-and-socket couplings for articulation
5. Shackles, clevis fittings, and eye fittings for structural connection
6. Corona rings (if required) for reducing corona discharge on 132kV lines


Each part is precision-designed to work as a reliable mechanical chain. Nooa Electric uses galvanized steel and high-strength alloy steel to ensure the assembly performs under harsh environments and heavy tension loads.

132kv Glass Insulators Tension String Transmission Hardware Fitting

Mechanical and Electrical Performance Advantages

Toughened glass provides high mechanical strength, excellent dielectric stability, and superior aging resistance compared to porcelain insulators.

132kV glass tension strings are widely used due to several advantages:
1. High Tensile Strength: Toughened glass discs typically range from 70kN to 160kN and higher, making them ideal for long spans, river crossings, and mountain regions.
2. Excellent Electrical Insulation: Their uniform structure provides stable dielectric strength and resistance to electrical puncture.
3. Self-Cleaning & Visibility: Glass surfaces reduce dust accumulation and make defects easily visible, lowering maintenance costs.
4. Long-Term Stability: Glass discs do not age or degrade under UV radiation, acid rain, or temperature cycles.

Nooa Electric ensures every disc undergoes mechanical load testing, AC withstand testing, lightning impulse testing, and pollution performance evaluation.

FAQ: 132kV Glass Insulators Tension String Hardware

1. How many discs are usually used in a 132kV tension string?
Typically 9–16 discs, depending on pollution level, creepage distance, and mechanical load.


2. Are 132kV glass insulators better than porcelain?
Yes—glass provides higher mechanical strength, better visibility for inspection, and improved electrical stability.


3. Can Nooa Electric customize tension string configurations?
Absolutely. Nooa Electric provides custom designs, fittings selection, disc models, and hardware combinations based on customer requirements.


4. What mechanical load rating is standard for 132kV tension strings?
Standard ratings include 70kN, 120kN, 160kN, but higher loads can be produced for river crossings or extreme spans.


5. Do 132kV tension strings need corona rings?
For EHV applications or when corona discharge is detected, grading rings are recommended.

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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