L&R Tension Composite Insulators, also known as Suspension Type Polymer Insulators, are expertly crafted from a glass fiber epoxy core rod, silicone rubber sheds, and metal fittings.
Choose L&R Tension Composite Insulators for a reliable, high-performance solution in your high voltage transmission and distribution systems.
Main Technical Parameter (IEC 61109)
| Model | Rated Voltage(kV) |
Rated Mechanical Failing Load(kN) |
Length
(mm) |
Minimum Arc Distance (mm) |
Minimum Creepage Distance(mm) | Lightning Impulse Withstand Voltage,peak(KV) | P.F 1min wet withstand voltage(kV) | Coupling Size |
|---|---|---|---|---|---|---|---|---|
| FXB-11/70 | 11 | 70 | 330 | 160 | 300 | 95 | 45 | 16 |
| FXB-11/80 | 11 | 80 | 370 | 200 | 450 | 95 | 45 | 16 |
| FXB-24/70 | 24 | 70 | 410 | 240 | 750 | 125 | 65 | 16 |
| FXB-24/100 | 24 | 100 | 450 | 240 | 750 | 125 | 65 | 16 |
| FXB-24/120 | 24 | 120 | 450 | 240 | 750 | 125 | 65 | 16 |
| FXB-33/70 | 33 | 70 | 530 | 360 | 900 | 200 | 95 | 16 |
| FXB-33/80 | 33 | 80 | 590 | 425 | 1080 | 220 | 95 | 16 |
| FXBW-33/70 | 33 | 70 | 655 | 480 | 1260 | 220 | 105 | 16 |
| FXBW-33/100 | 33 | 100 | 695 | 480 | 1260 | 220 | 105 | 16 |
| FXBW4-66/70 | 66 | 70 | 870/940 | 710 | 2248 | 410 | 185 | 16 |
| FXBW4-66/100 | 66 | 100 | 870/940 | 710 | 2248 | 410 | 185 | 16 |
| FXBW4-110/100 | 110 | 100 | 1240/1440 | 1000/1200 | 3150/3860 | 550 | 230 | 16 |
| FXBW4-110/160 | 110 | 160 | 1340 | 1000 | 3380 | 550 | 230 | R20 |
| FXBW4-145/120 | 145 | 120 | 1480 | 1240 | 4123 | 725 | 355 | 16 |
| FXBW4-220/100 | 220 | 100 | 2240/2350/2470 | 2020/2080/2210 | 6450/6760/7150 | 1000 | 395 | 16 |
| FXBW4-330/160 | 330 | 160 | 2990 | 2600 | 9075 | 1425 | 570 | R20 |
| FXBW4-220/210(160) | 220 | 210/160 | 2350 | 2000 | 6800 | 1000 | 230 | R20 |
| FXBW4-330/210(160) | 330 | 210/160 | 2930 | 2650 | 8790 | 1425 | 570 | R20 |
| FXBW4-500/210(160) | 500 | 210/160 | 4450 | 4075 | 14860 | 2050 | 740 | R20 |
Note:
1.We can produce as per customer’s requirements.
2.Corona Ring is necessary at 220kV system and above.For application at 220kV 230kV.one corona ring should be assembled at the end of Suspension Insulator.
While application at 330kV and above,two corona rings should be assembled at both end of insulator.

Composite Suspension/Tension Insulator are designed for use in high voltage overhead power distribution systems, providing reliable insulation and support for conductors. Their robust design and materials make them ideal for:
Choose L&R Composite Suspension/Tension Insulator for your high voltage power distribution needs and benefit from their advanced materials and reliable performance.


A Composite Suspension/Tension Insulator is a type of insulator used in high voltage transmission and distribution lines. It is made from a glass fiber epoxy core rod, silicone rubber sheds, and metal fittings. These insulators are designed to provide superior mechanical and electrical performance.
The key benefits include:
Composite Suspension/Tension Insulators are lighter, more compact, and easier to install than porcelain insulators. They offer better resistance to environmental stressors like UV radiation, moisture, and pollution. Additionally, they have a higher mechanical strength due to the advanced materials and manufacturing techniques used.
Composite Suspension/Tension Insulators are suitable for a wide range of voltage levels, from 11kV to 1100kV, making them ideal for both transmission and distribution lines.
Silicone rubber sheds provide excellent hydrophobicity, which helps to repel water and prevent contamination build-up. This reduces leakage currents and improves the overall performance and reliability of the insulator in harsh environmental conditions.
The connection between the glass fiber epoxy core rod and the metal fittings is made using advanced pressure welding techniques. This method, combined with automated ultrasonic defect detection, ensures high strength and integrity without damaging the core rod.
Yes, the metal fittings of Composite Suspension/Tension Insulators are designed to be compatible with those used in porcelain insulators, making them easily interchangeable.