How To Repair A Cut Cable Wire?

Cables, whether it is fiber optic cable, HDMI cables, or a coaxial cable, often get damaged, cut, or smashed. The problem is not so big, it can be easily repaired or fixed.

How to Fix a Cut Cable Wire Outside?

If your cable has a cut or rips in it, do not throw it away as it can be repaired. Even on a partially cut line, loss of conductivity or interference might occur, leaving you with poor or no reception. Installing connectors on the ends of the cable and connecting them with a coupler is the best approach to repair a cut cable.

Crimp-on connectors are straightforward and easy to install, but two specific tools are required: a coaxial stripper tool and a crimp tool.

How to Fix a Coaxial Cable Cut?

Cuts or damages are common problems with cables. You can fix them with a few simple coaxial repair tools from your local electronics store for less money than you might imagine.

To repair your damaged coax cable, follow the methods outlined below:

  1. Find out the part of your coaxial cable that is damaged. Make a clean cut across the damaged piece of the cable with wire cutters.
  2. Close the groove of crimping tool an inch down the cable. To produce a full cut around the outer portion of the cable, twist the stripping tool back and forth a few times.
  3. Slide the tool off the cable, removing a clean cut of the cable’s outer part. Remove the exposed metal braiding from the insulation’s perimeter. Copper filament surrounded by white PVC insulation will remain above the clipped area of the cable.
  4. With the “inner” section of the stripping tool, cut between the insulation down to about 1/3 of an inch. Remove the cut area with the help of stripper as it will twist around the section to produce a clean cut.
  5. Thread the copper filament through the bottom of the twist-on connector, which is positioned in the center of the cable and is surrounded by insulation.
  6. Twist the twist-on connector until the insulation hits the connector’s end and can no longer travel any further. Tightly twist it on. Only the copper wire should emerge from the twist-on connector’s core.
  7. Peel off the opposite end of the damaged coax cable and replace it with a twist-on connector to save it.
  8. Using a coupler, connect the two mended cables. Attach one end of the first cable to one side of the cable coupler, and the other end of the second cable to the other side.

How to Repair A Fiber Optic Cable Cut?

Any damage to an optical fiber cable would cause data transmission to be disrupted, that is why it is critical to repair the damaged optical cable as soon as possible.

Follow the guide given below to repair the fiber optic cable:

Step 1: Use an OTDR to locate the fiber optic cable break.

The first thing you should do is search for a break in your fiber optic line. A device known as an OTDR is commonly used by fiber-optic technicians. With the ability to act in the same way as radar, it can send a light pulse down the optical fiber connection. When it comes into contact with a break, it will be diverted to your device. It aids the technician in determining the location of the break.

Step 2: Remove the damaged fiber optic cable with a fiber optic cutter.

You should dig up the fiber optic cables with the break once you know where the break is. The damaged piece is taken out with a fiber optic cutter.

Step 3: Use a Fiber Optic Stripper to remove the fiber optic cable.

To reveal the fiber-optic tube within, use a fiber optic stripper to strip the fiber on both ends and gently peel the jacket away. Then, using fiber optic cutting tools, cut any sheath and yarn. Use a high-precision Fiber Cleaver to trim any damage on the Optical Fiber Ends.

Step 4: Clean the Striped Fiber Optic Cable

This step is critical for ensuring a clean wire strip at your terminal. Alcohol and lint-free wipes are needed to clean the stripped fiber. Make sure the fiber does not meet anything. Splice the fiber optic cable together using either fusion or mechanical splicing.

Step 5: Use an OTDR to test the connection of fiber optic cable.

This step would be to use the OTDR to inspect the fiber-optic connection. After that, replace the splices in the splice enclosure. Rebury the fiber optic cables after closing the cage.

Related questions

Is coaxial cable a risky investment?

They are completely secure. That does not mean you should leave the naked cable end or connectors lying about where they could short out, as this could harm the equipment and is not ideal for performance. But just touching things like your TV or internet cables is not dangerous.

What would happen if you snipped a live extension cable?

Snipping of a live extension cable can cause damage to your house. Cutting a live wire will almost certainly trip the circuit breaker, but there are other serious consequences. Cutting live wires causes a quick short, which can result in sparks, which can start a fire, or it can harm other electrical components, which can start fires at any moment.

Is it true that coaxial cable contains electricity?

Yes, current flows through coaxial wires connected to a modem, receiver box, or other devices. On your end, whether it is safe to touch the conductor depends on whether the wire is connected to pre-amplifiers, is correctly grounded, has been split to other ports, and so on. However, the risk is usually minimal.


Any cable or line that is cut or damaged, whether on your property or elsewhere, will be repaired or replaced to assist data, video, and voice transmission, and those responsible for the property damage will be charged and billed.

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