Dedicated Earthwire Stringing Block for OHTL Ground Wire Installation

Dedicated Earthwire stringing Block for Reliable Overhead transmission line (OHTL) Ground Wire Installation

At Ningbo Changshi Electric Power Machinery Manufacturing Limited, we understand that every component of an overhead transmission line (OHTL) plays a critical role in its overall performance, safety, and longevity. Our Dedicated Earthwire stringing Block is a specialized, robust tool meticulously engineered for the efficient, safe, and precise guiding of ground wires (also known as earthwires or shield wires) during the tension stringing process. As a prominent China manufacturer and exporter, we offer a comprehensive one-stop supply for a wide array of tools and equipment for power lines, and this essential block exemplifies our commitment to secure design, unwavering durability, and practical field performance for ensuring proper lightning protection and system integrity.

Earthwires are typically installed at the very top of transmission line towers, acting as the primary defense against lightning strikes, protecting the underlying power conductors. The specific requirements for earthwire stringing – often involving a single, rigid wire, sometimes with integrated optical fibers (OPGW) – necessitate a block designed to handle its unique characteristics. Our Earthwire Stringing Block ensures smooth passage, minimizes friction, and prevents kinking or damage to the earthwire, which is vital for maintaining its structural and electrical continuity.

Product Features & Benefits:

• Optimized for Earthwire/Ground Wire: Features a precisely engineered groove specifically tailored to accommodate the typically smaller diameter and rigid nature of ground wires, ensuring optimal fit and guidance.

• Superior Conductor Protection: The carefully designed sheave groove, often lined with durable, non-abrasive materials like UMC (polyurethane), provides a gentle contact surface to prevent scratching, kinking, or other damage to the critical earthwire, including sensitive OPGW.

• Robust & Durable Construction: Manufactured from high-strength galvanized steel or robust aluminum alloys, built to withstand the rigors of continuous field use and harsh environmental conditions, guaranteeing extended service life.

• Smooth & Efficient Operation: Equipped with high-quality, sealed precision bearings that ensure exceptionally smooth and low-friction rotation, facilitating effortless earthwire pulling and minimizing stress on the line.

• Secure Mounting Options: Designed with robust attachment mechanisms such as a Swivel hook or provisions for secure crossarm/tower member clamping, allowing for stable deployment at the highest point of the tower.

• Critical for Lightning Protection: Ensures the earthwire is strung without damage, maintaining its integrity as a vital component for lightning surge dissipation and overall line protection.

• Corrosion Resistance: All exposed components are typically hot-dip galvanized or treated with durable coatings, providing excellent protection against rust and environmental degradation, ensuring longevity.

Product Applications:

Our Dedicated Earthwire Stringing Blocks are indispensable for a wide range of overhead transmission line projects where ground wire installation is required:

• New OHTL Construction: Essential for the initial stringing of earthwires and shield wires on new power line routes, from distribution to EHV/UHV levels.

• OPGW (Optical Ground Wire) Installation: Provides the necessary protection and smooth guidance for the delicate fiber optic cables integrated into OPGW.

• Line Upgrades & Re-stringing: Ideal for replacing or upgrading existing earthwires efficiently and safely.

• Substation Entry/Exit Points: Facilitates the controlled installation of ground wires as they connect to substation grounding systems.

• River & Valley Crossings: Ensures smooth passage of earthwires over challenging long spans.

• Maintenance & Repair: Critical for handling ground wires during routine maintenance or emergency repairs.

Technical Data Sheet:

Note: Specific technical specifications, including exact sheave diameter, maximum earthwire diameter, and load capacity, will vary depending on the model and intended application. Please contact us for detailed datasheets for specific product variants.

Why Choose Ningbo Changshi Electric Power Machinery Manufacturing Limited?

Choosing Ningbo Changshi means partnering with a trusted industry leader dedicated to quality, specialized solutions, and comprehensive support. Here’s why we are your ideal choice:

1. Specialized Earthwire Expertise: We understand the unique demands of ground wire stringing, ensuring our blocks provide optimal protection and efficiency for these critical components.

2. Comprehensive One-Stop Solutions: As a prominent manufacturer and exporter, we offer a vast array of equipment for both overhead and underground power line projects, providing a truly integrated supply chain that simplifies your procurement.

3. Unwavering Quality & Durability: Every Dedicated Earthwire Stringing Block undergoes rigorous quality control and testing, ensuring it is robust, reliable, and performs flawlessly in the field.

4. Global Export & Dedicated Support: Our efficient worldwide export capabilities and committed customer service team ensure prompt delivery and expert technical assistance, wherever your project is located.

5. Focus on Safety & Integrity: We design our tools with the paramount importance of preserving the integrity of earthwires, which are crucial for the safety and reliability of the entire power system.

Final Summary:

Our Dedicated Earthwire Stringing Block is an indispensable, precision-engineered tool vital for the efficient, safe, and damage-free installation of ground wires on overhead transmission lines. Its specialized design ensures optimal protection for these critical lightning protection components. Trust Ningbo Changshi Electric Power Machinery Manufacturing Limited to equip your projects with high-quality, reliable, and purpose-built equipment that enhances both operational efficiency and system safety.

Ensure reliable lightning protection for your lines! Explore our Dedicated Earthwire Stringing Blocks. Visit www.ohtlstringingequipment.com or contact Ningbo Changshi Electric Power Machinery Manufacturing Limited today to discuss your specific ground wire installation needs and request a comprehensive quotation!