66kV composite tensile insulators offer several advantages for power transmission applications.
First, its lightweight design facilitates installation and reduces the weight burden on transmission towers.
Secondly, it is highly resistant to environmental degradation, such as UV radiation and corrosion, ensuring long-term reliability and durability.
Finally, its unique design allows it to handle heavy loads and extreme weather conditions without compromising performance.
Technical Parameters
| Typical Line Voltage (kV) |
Section Length (mm) |
Dry Arcing Distance (mm) |
Leakage Distance (mm) |
Specified Mechanical Load (SML, kN) |
Routine Test Load (RTL, kN) |
1min. Power Frequency Withstand Voltage (Wet) (kV) |
Lightning Impulse Withstand Voltage (kV) |
| 66 | 1290±15 | 1070 | 3440 | 120 | 60 | 140 | 325 |
1. Polymer insulators are available in different strengths and connectors.
2. The following electrical data are applicable to 220kV vertically installed corona ring-free composite line pillar insulators. It is recommended that corona rings be installed on Wuhan power lines with voltages of 220kV and above.
3. Other section lengths and pollution flashover distances are available.
4. All dimensions, tolerances and testing are within the limits permitted by IEC or ANSI standards.
5. All dimensions are in millimeters (mm). Please indicate if units are inches and pounds.
6. We can customize the design according to the end user's requirements.
Features
1. The silicone rubber shell composite line supports the suspension insulator in one piece. It has good water repellency, water migration resistance, stain resistance, as well as excellent electrical insulation and aging resistance. Effectively prevent pollution flashover accidents and ensure the safe operation of high-voltage transmission lines.
2. Modified ECR glass fiber reinforced epoxy resin rod is used, which has the characteristics of high temperature resistance, stress corrosion resistance and acid erosion resistance. It has good damping performance, high tensile strength (>1200Mpa), resistance to creep and fatigue damage, and effectively ensures the internal insulation quality and mechanical strength of the insulator.
3. Use the sound-activated displacement crimp tool to crimp the end fitting to the fiberglass rod. Insulators crimped using this technique have high mechanical strength and low dispersion. Advanced fully automatic one-piece injection molding technology and press-fit connection methods are used for production and assembly. The entire crimping process is controlled by a computer, and an ultrasonic detector monitors the crimping results to ensure that each product is qualified.
|
Item |
Requirement |
Measured Valued |
|
Visual examination |
Fuchsine,grey or white, |
Ok |
|
Hardness (shore A) |
≮50 |
65~70 |
|
Tensile strength (Map) |
≮4 |
4~6 |
|
Failure elongation (%) |
≮150 |
≮180 |
|
Tearing strength (kN/m) |
≮10 (right angle sample) |
12~15 |
|
Volume resistivity (Ω.m) |
1X1012 |
3~8X1012 |
|
Puncture strength (kV/mm) |
Alternating current ≮22 |
≮30 |
|
Tracking and erosion |
TMA4.5,erosion depth≯2.5mm |
TMA4.5, erosion depth <0.8mm |
|
Flammability (Grade) |
FV-0 |
FV-0 |
Company Profile
Our company has established long-term partnerships with numerous enterprises based on robust capabilities, reasonable pricing, and excellent service. With high-quality products and comprehensive after-sales support, we have earned a consistent reputation among clients nationwide. We sincerely welcome customers from both domestic and international markets to visit, inspect, and negotiate business cooperation.
Sound Testing Equipment
The company is equipped with a 1000kV AC test transformer, 1800kV impulse voltage generator, and a 2000kN automatic tensile testing machine, along with well-equipped physical and electrical laboratories.
Advanced Manufacturing Equipment
The company possesses state-of-the-art fully automated silicone injection molding machines and ultrasonic displacement crimping machines, representing the world's most advanced levels of technological craftsmanship.
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