Lithuanian Optical Cable Winding Tube Installation Solution 1200mm Depth

A 1200mm deep optical cable winding tube installation can be efficiently achieved using loose tube fiber cables, spiral protective tubing, and motorized winding machines designed for large-diameter rings.

Cable Selection and Handling

For installations at 1200mm depth, loose tube optical fiber cables with a polyethylene (PE) outer jacket are recommended for durability and direct burial suitability. The load during pulling must be applied to the cable's strength members, not the fibers themselves, to prevent elongation or damage. Use a specialized pulling grip of at least 600mm to distribute tension evenly, and cut off approximately 3 meters of cable after pulling to remove any stressed sections before termination (Aginode guidelines) .

Protective Tubing and Spiral Wrapping

To protect and organize the optical fibers within the winding tube, spiral wrapping or protective tubing is essential. Spiral wraps made of high-abrasion-resistant PE provide flexibility, UV resistance, and allow selective breakout of fibers for rerouting or maintenance. HellermannTyton and similar suppliers offer spiral cable organizers in various diameters and materials suitable for optical cables, ensuring strain relief and preventing tangling .

Winding Machinery

For a 1200mm depth winding tube, motorized winding machines are ideal. Machines like Kabelmat®'s fully automatic ring winders can handle outer diameters up to 1200mm, allowing inline or offline winding, measuring, and cutting simultaneously. These systems provide high output, short changeover times, and precise tension control, which is critical for maintaining fiber integrity during winding. Accessories such as cable dancers or accumulators ensure smooth feeding from drums or spools .

Installation Workflow

1. Prepare the cable: Ensure proper storage and handling to avoid stress or contamination.
2. Apply protective tubing: Use spiral wrap or flexible tubing to encase the cable, providing abrasion resistance and organization.
3. Set up the winding machine: Mount the drum securely, configure the machine for 1200mm outer diameter, and synchronize feed speed with a cable dancer or accumulator.
4. Pull and wind the cable: Use a pulling grip to apply tension to the strength members, feed the cable through the protective tubing, and wind onto the tube using the motorized system.
5. Post-installation check: Cut off stressed cable ends, inspect fiber integrity, and ensure proper breakout points for maintenance access.

Additional Considerations

• Ensure compliance with local Lithuanian standards for optical cable installation.
• Maintain temperature and environmental control during installation to prevent material deformation.
• Consider automation for high-volume installations to reduce labor and improve consistency . This integrated approach—combining loose tube cables, spiral protective tubing, and motorized winding machines—ensures a reliable, efficient, and safe installation of optical fiber cables in 1200mm deep winding tubes.