The ADSS/OPGW Down Lead Clamp is engineered to secure and guide optical cable runs neatly along poles and towers in overhead fiber networks. It is suitable for routing ADSS and OPGW cables on terminal poles, splice poles, angle structures, and reinforcing towers where controlled cable descent and bend protection are required.
This clamp assembly is designed to keep the cable stable during vertical leading and directional changes while reducing movement, abrasion, and long-term mechanical stress. Depending on the application, the clamp can be supplied with a rubber-cushioned holding section for ADSS cable protection or a metal holding section for OPGW and stronger sheath structures. Pole versions use stainless steel strap fixing, while tower versions use a bolted metal bracket arrangement.
The product is manufactured from durable materials such as galvanized steel, aluminum alloy, stainless steel, engineering plastic, and special rubber inserts, offering dependable performance in outdoor power and telecom environments. Its stamped and formed structure supports convenient installation, firm holding force, and long service life under wind, temperature variation, moisture, and corrosion-prone conditions.
International Standard Compliance
The TX-DLC Down Lead Clamp is manufactured in line with general industry expectations for overhead line fittings and fiber cable accessories. Depending on project requirements, production and material control can be aligned with the following standards:
- IEC standards for overhead line accessories and related material performance
- ISO 9001 quality management system practices
- ASTM references for stainless steel, galvanized steel, and aluminum material properties
- RoHS-compliant material options available upon request
- Dimensional and performance customization available for utility and telecom project specifications
Types of Down Lead Clamp
1. Rubber Down Lead Clamp for Tower
Application: Used for ADSS cable routing and protection on transmission towers, splice towers, terminal towers, and angle towers. The rubber-lined contact surface helps reduce abrasion and protects the cable sheath during long-term service.
2. Metal Down Lead Clamp for Tower
Application: Used for OPGW cable fixing on tower structures where stronger mechanical holding is needed. It is suitable for cable downlead sections and bend fixing on transmission towers.
3. Rubber Down Lead Clamp for Pole
Application: Used for ADSS cable installation on utility poles, terminal poles, and splice poles. The stainless steel strap fixing method provides secure mounting, while the rubber insert protects the fiber cable jacket.
4. Metal Down Lead Clamp for Pole
Application: Used for OPGW or other cables with tougher outer sheath on poles. It is suitable for locations that require firm cable retention and durable outdoor performance.
Construction & Materials
The TX-DLC clamp assembly is built from carefully selected materials to balance strength, corrosion resistance, and cable protection.
Main components include:
- Clamp body: Aluminum alloy or formed metal section
- Support body/bracket: Galvanized steel
- Fastening rod/bolt set: Galvanized steel
- Locking screw and hardware: Stainless steel
- Strap band: Stainless steel
- Cushion insert: Special rubber or UV-stabilized polymer
- Protective contact section: Rubber for ADSS, metal grip for OPGW applications
This construction helps prevent cable abrasion, maintain grip stability, and support long-term outdoor use on cement poles, steel poles, and tower structures
Installation Guide
- Confirm the installation point on the pole or tower and verify the cable diameter.
- Select the suitable TX-DLC clamp type based on cable structure and installation location.
- For pole installation, wrap the stainless steel band around the pole and pass it through the clamp base.
- Tighten the strap securely so the clamp body is fixed in the required direction.
- For tower installation, attach the bracket to the tower structure using bolts and nuts.
- Open the clamp holding section and place the cable into the groove carefully.
- Ensure the cable sits naturally without twisting or excessive pressure.
- Close the clamp cover and tighten the fastening hardware evenly.
- Install additional sets at approximately 1.5-meter intervals along the downlead route.
- Inspect the final alignment to ensure proper cable guidance and secure holding.
Installation Notes:
- Usually installed from top to bottom during cable downleading
- One set is typically used per 1.5 meters
- Two sets may be used at the bending or angle sections, depending on the structure design
- Suitable for cement poles, steel poles, and tower installations
