Fiber optic cables are an integral component of advanced technology. They are the lifeline of the system and provide flawless communication while doing the heavy lifting of the tasks.
In power and communication networks, two powerful cable systems help provide the system functionality. These include OPGW (optical ground wires) and ADSS (all-dielectric self-supporting cables).
However, each cable serves a different range of applications and can be used based on your needs. Do you want to know both wires and how they can help you sort out most of the issues related to your cables? This guide compares both OPGW and ADSS cables in multiple aspects and tells which is better.
Optical ground wires have caught a flare in a few years.
They are metallic cables that are used with high-voltage, 110 kV and above. They have dual wires. One can ground the system. Another one transmits and enables communication.
OPGW cables run along the topmost position of the tower and keep communication possible with powerful signal transmission systems.
Dual function
● They offer grounding wire support. You get lightning protection because of a grounding wire.
● Simultaneously enables high-speed fiber communication for data, grid automation, SCADA, or utility monitoring.
High Tensile Strength
● Suitable for long spans across tall towers and harsh environments.
● Withstands wind loads, ice loads, and mechanical stress without sagging or breaking.
Metallic structure and installation requirements
● Composed of aluminum-clad steel or stainless steel wires surrounding a central tube. This tube holds the optical fibers and protects them from interference.
● Offers mechanical strength, corrosion resistance, and electrical conductivity to make the communication possible in all the environmental conditions.
All-dielectric self-supporting cables— the name is enough to denote what it is all about. These cables have a self-supporting mechanism and are often composed of non-metallic components. They lie on the distribution poles and provide the ideal communication to the networks.
● ADSS cables have a non-metallic design. It is suitable for medium- and low-voltage lines.
● It is self-supporting, lightweight, and safe around electricity.
● They have a UV-resistant construction and keep the system optimized.
● Ideal for telecommunication companies, power distribution networks, FTTH (Fiber to the Home), and rural broadband expansion.
● Also used in railways and highways for smart infrastructure
OPGW and ADSS are different from each other at various points. Let's have those points discussed.
The construction of the cable can be decided based on the environmental conditions. Sometimes, there is a need for metallic and robust cables. Let's see both wires.
OPGW wires are metallic and designed for grounding and communication.
On the other hand, ADSS cables are non-metallic, made from aramid fibers, and used for communication purposes.
Over- or under-voltage can be a death threat to the communication system. How can you even overburden a system?
OPGW cables have a special design and compatibility with a higher voltage level. Used with high-voltage lines of 110 KV or more. Grounding is necessary for such a high-voltage state.
ADSS cables are the primary choice for low to medium voltage and don't need grounding of wires.
Installation space and methods vary from OPGW cables to ADSS cables.
For example, OPGW wires are ideal for installation on the tower and in such high places. Before installation, you have to shut down your power supply.
On the other hand, you can install the ADSS cables on the poles. There is no need to shut down the supply during the installation process.
There are many regions where lighting is a serious problem. Storms and cloudy seasons require a compatible system that survives the lightning strikes. Let's check both of the systems before making an ultimate decision.
Optical ground wires are the best handlers for lightning strikes. They have a grounded option and pass all the energy to the ground, protecting the system.
On the other hand, all-dielectric self-supporting cables fail at this point. They are not grounded. They need additional surge protection tools for the ultimate need.
Maintenance and accessibility can be another hassle for the engineers. Let's have a look at both cable types.
OPGW cables are localized high on the towers and other such places. Inspection at that level is a hassle for the engineers and can be a risky call.
In contrast, maintenance of the ADSS cables is cool and simple. They lie on the poles. Inspection and maintenance is a one-stop solution for such cables.
What do you think about whether optical ground wires are cheaper than all-dielectric self-supporting cables?
Usually, OPGW is far more expensive. Why? Because of the complex setup. For example, you need metal construction, tower access, and power shutdowns. Maintenance and installation can be costly overall.
All-dielectric self-supporting cables are cheaper in this case. They have a simple installation, reducing the need for experts. Plus, they don't lie high. So, it is a straightforward job.
Feature | OPGW (Optical Ground Wire) | ADSS (All-Dielectric Self-Supporting) |
Structure | Metallic (steel/aluminum + fiber core) | Non-metallic (dielectric, aramid strength) |
Function | Grounding + Communication | Communication only |
Voltage Suitability | High-voltage (≥110 kV) | Medium-/low-voltage |
Lightning Protection | Excellent (acts as ground wire) | Requires external protection |
Installation Method | Power outage required; mounted on tower tops | Can be installed live; mounted on poles |
Weight & Flexibility | Heavier, rigid | Lightweight, flexible |
Maintenance Access | Complex (height and safety risks) | Easier, safer access |
Environmental Resistance | High, with strong mechanical properties | UV-, water-, and ice-resistant |
Applications | Transmission lines, grid monitoring | Telecom, rural internet, utility poles |
Cost & Complexity | Higher cost, complex logistics | Lower cost, fast deployment |
All debates end when you have to select the right and tested cable. Don't go headfirst. But better to be with the careful tips discussed below.
How much is the voltage of your project? The decisions vary based on the voltage. For example, OPGW is the best bet if you have a higher voltage. At the same time, all-dielectric self-supporting cables become the ultimate choice for low to medium-voltage distribution of communication networks.
Do you live in an area that often faces storms? OPGW can handle storms like a victor. However, the tough and rough terrains require all-dielectric self-supporting cables to get the ultimate job.
Installation of the system can be tough or easy. Which do you prefer? For DIY installation, you should always choose the easy installation. At the same time, a good day with the ADSS can be here. However, both cable types require maintenance to some extent.
Usually, it is challenging to decide who is the best bet if you have to choose between the ADSS or OPGW.
One single blow to the project cost and performance can bring down all the efforts. Usually, OPGW is expensive to install but has long-term cost-effectiveness. They are profitable in the long run.
For the ADSS, you need precise engineering and better attention to the installation. It is a more affordable process.
Whatever cable you are using, local standards and technical specifications compliance is necessary. Cutting corners is a recipe for disaster. Check all the rules and regulations. Compare the product with the international manufacturing rules.
SDGI is not here to provide you with instant solutions but long-term deals. There are a few points that make us the number one choice in the all-dielectric self-supporting cables and OPGW industry.
Let's take a look.
SDGI cables have both types of cables.
● OPGW cables offer flawless fiber configuration and higher performance.
● ADSS cables retain the highest quality and foolproof quality.
Do you want the dream designs? Fasten your seatbelts with SDGI cables. We have a wonderful range of wires. Our R&D team thinks out of the box to design customized cables with range and accuracy.
If you are worried more about the quality, relax! You get a matchless quality of products. Guess what? We offer the relevant ISO certificates to build your confidence in our products.
Suppose you have a wonderful project in mind, but don't know how to complete it. Our consultants add to your ease and provide reliable and quality consultation services. Complete your infrastructure projects while shifting your workload onto our shoulders.
Have you decided on your favorite type of cable? Whether it is an all-dielectric self-supporting cable or OPGW, both can be useful in different conditions. All you have to do is decide on it.
Here are a few use cases.
● OPGW is ideal for high-voltage lines.
● ADSS is perfect for flexible, low-impact installations.
Remember to select the SDGI that deliver the ultimate quality and provide affordable prices. Do you want to check out the collection? Go on!
