Article Overview
The single-reel inspection batch is used for optical cable laying to ensure each reel meets quality and length requirements before installation.
Single-Reel Inspection
Before laying optical cables, each reel undergoes a single-reel inspection on-site. This inspection includes:
- Checking and counting the optical cables and connecting equipment delivered to the site.
- Appearance inspection to identify cracks, non-uniformity, or damage along the cable length.
- Measurement of specifications such as fiber attenuation, length, and mechanical integrity.
- Verification of manufacturer data to ensure the cable meets design and contract requirements. This process ensures that only reels that pass inspection are used for installation, preventing damage or waste during laying .
Testing Methods
During the single-reel inspection, several tests are performed:
- OTDR (Optical Time Domain Reflectometer) testing to detect faults, splices, or breaks along the fiber.
- Light source and optical power meter testing as a simpler alternative if OTDR is unavailable.
- Visual inspection of connectors and fiber ends to check for scratches, cracks, or contamination .
Post-Inspection Handling
After inspection:
- The cable ends are sealed, and the reel packaging is restored.
- Reels are uniformly numbered, with outer end marks and cable length indicated.
- Cables with short sections or deviations are separated to ensure proper matching during laying .
Summary
The single-reel inspection batch is critical for optical cable laying. It verifies the quality, length, and integrity of each reel before installation, complementing factory tests and ensuring that the optical cable performs reliably in the field . This inspection is a standard practice in telecom projects to maintain high installation quality and prevent post-laying failures.
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