Fixing the optical cable in a vise

Secure the optical cable gently in a vise or specialized clamp to prevent movement while avoiding damage to the fiber core.

Tools and Equipment

To fix an optical cable in a vise safely, you will need:

• A vise or fiber-specific clamp (e.g., FasClamp)
• Utility knife or optical cable stripping knife
• Scissors or strengthening core cutters
• Lint-free wipes and alcohol for cleaning
• Optional: heat shrink tubing for later protection

Steps for Securing the Cable

1. Prepare the Cable: Determine the length to strip (typically 1.2–1.5 meters). Remove the outer sheath carefully using a stripping knife or utility knife, then cut off any water-blocking tape and loose sheath .
2. Clean the Fiber: Wipe the exposed fiber with lint-free wipes and alcohol to remove grease or debris .
3. Position in the Vise: Place the cable in the vise so that the strengthening core or outer jacket is clamped, not the delicate fiber itself. Tighten the vise just enough to hold the cable securely without crushing it .
4. Use a Specialized Clamp if Available: Devices like the FasClamp provide a non-slip grip and can hold multiple cable diameters safely, reducing the risk of fiber breakage during splicing or preparation .
5. Precoil and Protect: If preparing for splicing, precoil the fiber on a welding disc and add heat shrink tubing to protect the fiber after welding .

Precautions

• Do not overtighten the vise; excessive pressure can break the fiber core.
• Avoid clamping the bare fiber; always secure the jacket or strengthening core.
• Keep the fiber clean; dust or grease can affect splicing quality.
• Consider using a fiber-specific clamp for repeated or professional work, as it provides stability and reduces the risk of damage compared to a standard vise . By following these steps, you can safely fix an optical cable in a vise or clamp, ensuring stability for stripping, splicing, or connector installation while minimizing the risk of fiber damage.