Recently, EB-LINK completed the batch shipment of a batch of armored anti-rodent jumpers and pigtails, which are used for terminal link replacement in the optical fiber project of the vehicle monitoring system in a highway tunnel in a province. All batches are tested one by one and are accompanied by test records.

What does the link in the tunnel face?

previousHigh-speed tunnel vehicle monitoring optical fiber projectLet us be familiar with such on-site conditions: Optical cables are laid along the cable trough of the side wall. The humidity is high all year round. There is water seepage at the settlement joints. Some line segments have been running for a long time and the sheaths are aged and brittle. Maintenance vehicles and tools may scratch the exposed line segments at any time, and the ends are often chewed. The tunnel is a closed space, and the cables have strict flame retardant and low smoke requirements. The same level of sheath must be used from the trunk to the jumper, otherwise one PVC will slow down the fire protection review of the entire section.

What does this batch of delivery solve?

  • Replace the old line section from the side wall equipment box to the camera end that was corroded and had broken fibers.
  • Unified use of low smoke halogen-free sheathMultimode armored jumpers, consistent with the backbone optical cable material, and fire protection acceptance is well documented
  • The armored structure resists scratches from maintenance tools and reduces the probability of man-made mechanical damage.
  • Batch coding facilitates traceability and maintenance records by tunnel section

What the customer gets and what's next

After the arrival of the goods, the operation and maintenance team can replace each core by segment and re-measure the optical power. The comparison data before and after the replacement is directly recorded in the maintenance ledger; EB-LINK technical support arranges the replacement sequence throughout the working day, and the test records are archived for future reference. The next step will be to continue stocking up on the commonly used lengths of tunnels to shorten the waiting time for similar replacement projects.

For link reconstruction projects in tunnels or other enclosed spaces, please call 0755-83179002 to inquire about spare parts and solutions.