Guides And Tips

Can you Repair a Cut Data Cable?

2 minute read

Fibre optic cable can be damaged, cut, or fractured by mistake. A major cause of optical fibre failure is backhoe fade, accidental damage which can cut or completely sever a data cable during digging.

How to Repair a Broken Fibre Optic Cable

An Optical Time Domain Reflectometer (OTDR) is required – it is used for measuring fibre length, transmission and joint attenuation, and fault localisation.

Below is a step-by-step guide on how to repair a broken cable:

  • Step 1: Use OTDR to locate the break – the reflectometer, mentioned above, works as a radar which sends a light pulse to the optical fibre cable
  • Step 2: Cut the damaged cable using fibre optic cutters – dig up the fibre optic cable that is damaged after determining its location and then proceed to cut it out
  • Step 3: Strip the cable using fibre optic stripper – strip it on both ends and peel carefully to expose the tube inside, cut any sheath and/or yarn
  • Step 4: Trim the damage on the cable using high precision fibre cleaver
  • Step 5: Clean the striped cable – it is important to make sure that you have a clean wire strip; use alcohol and lint-free wipes, once cleaned the fibre should not touch anything
  • Step 6: Join the fibre optic cable back together – that can be done using two different methods, mechanical splicing or fusion splicing.
  • Step 7: Carry out a connection test with OTDR

After this, you’re done!

Explore our range of data cables here, check out this guide to the types of data cable, or find a wholesaler near you today.

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