Vibration in ADSS optic fiber cables can lead to serious issues. It reduces performance, weakens durability, and shortens the lifespan of your cables. To prevent vibration, you need reliable solutions. The 48C ADSS Double Jacket ADSS Optic Fiber Cable Span 600m offers excellent durability and performance for aerial installations.
Understanding ADSS Cables
ADSS (All-Dielectric Self-Supporting) cables are a type of Fiber Optic Cable designed for aerial installations. These cables do not require any metallic components, making them lightweight and resistant to electrical interference. Their self-supporting design allows them to be installed between poles or towers without additional support structures.
Causes of Vibration in ADSS Cables
Wind-induced motion, also known as Aeolian vibration, is one of the most common causes of cable vibration. When steady winds blow across the cable, they create alternating pressure on its surface. This pressure causes the cable to oscillate at high frequencies. Over time, these vibrations can lead to fatigue and damage to the cable's structure.
Environmental conditions also play a significant role in causing vibration. Temperature fluctuations, humidity, and exposure to rain or snow can weaken the cable over time. These factors may increase the likelihood of vibration, especially in regions with extreme weather.
Improper installation and incorrect tensioning often lead to vibration problems. If the cable is too loose, it may sag and vibrate excessively. On the other hand, over-tensioning can increase stress on the cable, making it more prone to damage.
Anti-Vibration Whip Installation Methods and Selection Criteria
To prevent damage to ADSS overhead cables due to vibration caused by gentle winds, we often employ anti-vibration hammers and dampers. By adjusting the frequency of the shock absorbers, we can effectively mitigate vibrations, thereby preventing wire breakage, damage to hardware and tower components, and accidents resulting from fractures.
So, how does the cable anti-vibration whip work? The ADSS anti-vibration whip protects the cable by dissipating vibration energy through impact with the cable, consuming and weakening the energy of the cable's vibration.
Small-diameter wires are typically used in ADSS cables to prevent vibration. The ADSS cable anti-vibration whip is made from PVC optical fiber wire with high elasticity, aging resistance, high strength, and flame-retardant properties, or from small cross-sectional wires with an outer edge diameter close to 19mm for lines with a voltage below 132KV.
The installation methods for ADSS cable anti-vibration whips (spiral anti-vibration whips) are as follows:
1. Series installation: The first whip is installed at a distance of >500mm from the end of the strand, and the second is installed at a distance of 120mm from the end of the first strand. This method is known as series installation.
2. Parallel installation: Two whips are folded together and installed at the end of the twisted wire, >500mm from the end. This method is referred to as parallel installation.
Generally, both series and parallel installation methods of ADSS anti-vibration whips have the same vibration reduction effect on the wire, with no significant difference in installation. Additionally, the selection of anti-vibration whips should be based on the diameter of the optical cable. The required model is chosen according to the specification table, and the number needed for each gear is determined based on the size of the gear.
Product Solutions for Vibration Prevention
48C ADSS Double Jacket ADSS Optic Fiber Cable Span 600m
The 48C ADSS Double Jacket ADSS Optic Fiber Cable Span 600m offers a robust solution for long aerial spans. Its double-jacket construction enhances durability and protects against environmental stressors like wind and temperature changes. This cable supports spans of up to 600 meters, making it ideal for installations in areas prone to wind-induced motion.
Cross Mountain Long Span 400m 24 Core SM Double Sheath Aerial Dielectric Self-Supporting Cable
The Cross Mountain Long Span 400m 24 Core SM Double Sheath Aerial Dielectric Self-Supporting Cable is designed for medium-length spans of up to 400 meters. Its double-sheath construction provides extra strength and resistance to wear, making it suitable for areas with strong winds.
Aerial Outdoor 24 Core Single Sheath Aerial ADSS Optical Cable for Overhead Span 80m
For shorter spans, the Aerial Outdoor 24 Core Single Sheath Aerial ADSS Optical Cable for Overhead Span 80m provides an excellent option. Its single-sheath design ensures flexibility while maintaining durability. This makes it ideal for installations requiring shorter spans of up to 80 meters.
Conclusion
Addressing vibration in ADSS cables ensures their durability and performance. You can prevent vibration by using vibration dampers, following proper installation practices, and conducting regular maintenance. Selecting the right cable for specific spans, like the 48C ADSS Double Jacket ADSS Optic Fiber Cable Span 600m, further enhances reliability. These steps protect your investment and improve cable lifespan.