FAQ

FAQ

Absolutely. As a prominent manufacturer and exporter, Ningbo Changshi is committed to comprehensive after-sales support. We provide readily available spare parts, detailed technical documentation, and expert technical assistance to ensure your equipment remains operational and efficient. Our dedicated support team is available to assist with troubleshooting, maintenance queries, and any operational guidance you may need, ensuring minimal downtime for your projects.

A grounding pole, or grounding operating stick, is a critical safety tool used to apply a short circuit grounding wire from a safe distance. Its primary function is to provide an insulated means of connecting the grounding wire to a conductor or busbar that has been de-energized. This ensures that any residual or induced voltage is safely grounded, protecting workers from electric shock. Our insulated grounding poles are manufactured from high-quality, non-conductive materials to provide a reliable and safe tool for this essential task.

Quality and compliance are at the core of Ningbo Changshi. We adhere to stringent international quality management systems, such as ISO 9001. Our equipment is designed and manufactured to meet relevant industry standards and certifications (e.g., CE, local market regulations where applicable). We conduct rigorous testing and inspection at every stage of production, from material procurement to final assembly and performance verification, ensuring that our products are safe, reliable, and meet global benchmarks.

Yes, we understand that unique projects often require specialized solutions. Ningbo Changshi offers customization services for a range of our equipment. Our engineering team can work closely with you to understand your specific project challenges and tailor equipment specifications, features, or configurations to meet your precise operational needs, ensuring optimal performance and efficiency for even the most unique applications.

For a safe and efficient overhead tension stringing operation, a comprehensive set of equipment is essential. This includes a hydraulic tensioner to apply controlled back tension, a hydraulic puller to pull the conductor, and anti-twisting braided steel ropes to prevent rotation. Additionally, stringing blocks (sheaves), conductor clamps, and various other tools and accessories are critical for a seamless process. At Ningbo Changshi, we offer a one-stop supply for all these components, ensuring compatibility and peak performance for your entire project.

Choosing the right hydraulic puller and tensioner depends on several key factors, including the conductor's diameter, the length of the stringing section, and the required pulling/tensioning force. Our expert team at Ningbo Changshi can help you select the ideal models based on your project's specific parameters. We manufacture a wide range of hydraulic pullers and tensioners with varying capabilities, ensuring you have the right equipment to handle your conductor stringing project with precision and safety.

Safety is paramount in all OHTL work. When selecting stringing equipment, prioritize features such as automatic braking systems on tensioners and pullers, a controlled hydrostatic drive to ensure smooth operation, and reliable overload protection. Our equipment is designed with these critical safety features and is manufactured to meet or exceed international safety standards. We also offer a full range of safety tools and personal protective equipment (PPE) to support your entire project.

Safety is paramount in all OHTL work. When selecting stringing equipment, prioritize features such as automatic braking systems on tensioners and pullers, a controlled hydrostatic drive to ensure smooth operation, and reliable overload protection. Our equipment is designed with these critical safety features and is manufactured to meet or exceed international safety standards. We also offer a full range of safety tools and personal protective equipment (PPE) to support your entire project.

For linemen and other workers at height, full-body safety harnesses are mandatory. Depending on the task, a work positioning rope safety harness may also be required to provide support and stability, allowing the worker to be hands-free. We provide a full range of durable and ergonomic harnesses and lanyards that are designed to meet international safety standards, ensuring your team has the best possible protection against falls.

Choosing a one-stop supplier like Ningbo Changshi offers significant advantages. It ensures that all your equipment, from hydraulic tensioners to underground cable rollers, is compatible and of consistent quality. It also simplifies your procurement process, saving you time and money on sourcing from multiple vendors. As a manufacturer and exporter, we can offer customized solutions, competitive pricing, and streamlined logistics for a seamless experience from a single, trusted partner.

ADSS stands for All-Dielectric Self-Supporting cable. It is a type of fiber optic cable that is specifically designed to be strong enough to support itself over long spans between structures like utility poles and transmission towers. The key feature is that it contains no metallic elements, making it completely "all-dielectric" and non-conductive. This design is crucial for its safety and reliability, especially when installed in high-voltage environments.

The unique design of ADSS cables provides several significant advantages:

  • Safety in High-Voltage Environments: Because the cable contains no metal, it is not susceptible to electrical induction or lightning strikes. This makes it ideal for installation on existing power lines and towers.

  • Cost-Effective and Efficient Installation: ADSS cables are "self-supporting," meaning they don't require a separate messenger wire or support cable. This simplifies and speeds up installation, reducing both time and labor costs. They can often be installed in a single pass.

  • High Strength and Durability: The cable's strength is derived from aramid yarns or other non-metallic strength members, allowing it to withstand its own weight over long spans and endure harsh weather conditions like strong winds and ice.

  • Reduced Load on Structures: The lightweight and small-diameter design of ADSS cables minimizes the additional load on utility poles and towers.

The main difference lies in their composition and installation. ADSS cable is non-metallic and can be installed on energized power lines without a power outage. In contrast, OPGW (Optical Ground Wire) is a metallic cable that serves a dual purpose as a ground wire and a fiber optic communication path. OPGW installation requires a power outage, and it is typically a more complex and costly process. For applications where a new communication line needs to be added to an existing power grid without disrupting service, ADSS is the preferred and more economical choice.

ADSS cables are primarily used for:

  • Utility Communication Networks: They are the standard for communication systems within power utility companies, running along high-voltage transmission lines.

  • Long-Distance Communication: Their self-supporting and high-strength properties make them perfect for long-span installations over rivers, valleys, or other challenging terrains.

  • Urban and Rural Networks: ADSS cables are used to extend broadband and communication networks into both urban and rural areas, often leveraging existing power infrastructure.

  • 5G Backhaul: As countries continue to expand 5G networks, ADSS cables are an increasingly popular choice for connecting cell towers due to their high bandwidth and ease of installation.

The full form of ADSS is All-Dielectric Self-Supporting. This name perfectly describes the cable's two most important characteristics: it is made entirely of non-conductive, "all-dielectric" materials, and it is "self-supporting," meaning it doesn't need an additional messenger wire or support cable for installation.

The all-dielectric and self-supporting design provides significant advantages for electrical construction projects:

  • Non-Metallic Construction: Since the cable contains no metal, it is completely immune to electrical interference and is safe to install in high-voltage environments, such as on power transmission lines.

  • High Tensile Strength: The self-supporting nature of the cable is achieved through robust, non-metallic strength members (typically aramid yarns). This allows it to withstand its own weight over long spans, often up to 1,000 meters or more.

  • Ease of Installation: The single-pass installation process significantly reduces labor and equipment costs. Since it is non-conductive, it can even be installed on energized lines, which minimizes network downtime.

  • Durability and Weather Resistance: ADSS cables are engineered with high-quality sheaths to resist UV radiation, moisture, and extreme temperatures, ensuring long-term performance in diverse and harsh environments.

ADSS cables are a leading solution for a variety of applications where aerial installation is required. Their primary use is in power utility communication networks, where they are installed on existing overhead transmission lines. They are also widely used for long-distance communication projects spanning challenging landscapes like rivers and valleys, and for expanding broadband networks in both urban and rural areas.
At its core, ADSS (All-Dielectric Self-Supporting) cable is a specialized fiber optic cable whose purpose is to provide a reliable communication link in environments where traditional cables are unsuitable. The meaning behind the name "all-dielectric" signifies that the cable contains no conductive metal components, making it completely non-conductive. This is essential for preventing electric current induction and ensuring safety when the cable is installed near high-voltage power lines. The "self-supporting" aspect means the cable's internal structure is strong enough to bear its own weight over large distances, eliminating the need for a separate messenger wire.
The all-dielectric nature of ADSS cables is a major technological advantage for electrical construction and maintenance. By being non-conductive, the cable can be safely installed on power poles and transmission towers without risk of short-circuiting or carrying a charge. This design also makes the cable immune to electromagnetic interference, ensuring the integrity of the optical signal is never compromised, even in close proximity to high-power electrical fields.

The self-supporting feature of ADSS cables dramatically simplifies the installation process. Since a separate support strand is not needed, installation becomes a single-pass operation, significantly reducing both the time and labor required. This efficiency leads to lower project costs and faster network deployment. The robust internal strength members, typically made of aramid yarn, provide the necessary tensile strength to span long distances between support structures, making ADSS an ideal and durable solution for challenging terrains.

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