How to discharge a whole roll of optical cable

Discharging a whole roll of optical cable requires careful handling, proper reel setup, and controlled payoff to prevent tangling, kinking, or damage.

Preparing the Reel

• Inspect the reel: Check for loose flange bolts, debris, or damage that could interfere with cable payoff. Tighten flange bolts if necessary to prevent the reel from deforming during discharge .
• Position the reel upright: Always keep the drum in an upright position on a stable surface or reel stand. Avoid laying it flat, as this can crush lower layers of cable .
• Use proper lifting equipment: For heavy reels, use a forklift with forks longer than the drum width, or a crane with a shaft and spreader bar to prevent flange damage .

Cable Payoff Techniques

• Follow the roll direction: Pay off the cable in the direction indicated by the arrows on the reel flange to avoid loosening or kinking .
• Maintain back-tension: Keep slight tension on the cable as it is pulled off the reel. Slack in the top layer can lead to tangling or “squirting” of the cable .
• Use a figure-of-eight method: For long runs, consider the figure-of-eight technique to prevent twists and maintain cable integrity .
• Control the speed: Avoid letting the reel over-spin. Stop periodically to check tension and alignment .

Safety and Handling Precautions

• Wear protective equipment: Gloves, eyewear, and headgear are recommended to prevent injury during handling .
• Avoid sharp bends: Do not bend the cable beyond its minimum bend radius to prevent fiber breakage .
• Secure the cable end: When installation is paused, secure the cable tail to prevent the top layer from loosening .
• Environmental considerations: Minimize exposure to moisture or extreme temperatures, especially for wooden reels, as expansion or contraction can loosen bolts and affect cable integrity .

Additional Tips

• Plan the route: Inspect ducts, manholes, and conduit paths before starting to ensure smooth cable pulling .
• Cut excess cable carefully: If necessary, trim the cable tail to about one foot to allow free movement from the arbor hole without hindrance .
• Monitor for damage: Continuously check for kinks, abrasions, or other damage during payoff to prevent costly repairs . By following these steps, you can safely discharge a whole roll of optical cable while maintaining its performance and minimizing the risk of damage.