Installation of Fiber Optic Cable Joint Protection Box in Greece

Fiber optic cable joint protection boxes in Greece are installed to safeguard splices from environmental hazards, using durable enclosures and standardized procedures for both underground and aerial networks.

Types of Fiber Optic Joint Boxes

Fiber Joint Boxes (also called fiber closures or splice closures) are outdoor or underground enclosures designed to protect fiber splices from moisture, dust, mechanical stress, and UV exposure . Common types include:

• Outdoor buried or pole-mounted boxes: Sealed for long-term protection, suitable for FTTH distribution and long-haul backbone networks .
• GR Series Splice Boxes: GRP enclosures with carbon-loaded, glass-fiber reinforced polyester, stainless steel screws, and splice trays for up to 12 fusion splices per tray, certified for extreme temperatures down to -50°C .
• Submarine closures (Seaflex®): Designed for coastal or offshore installations, supporting up to 1728 fibers and high tensile loads, ideal for marine environments .

Installation Procedure

1. Site Selection: Choose a location that minimizes environmental exposure and allows easy maintenance. For aerial installations, boxes are typically mounted on poles or towers at accessible heights (e.g., 8–10 meters for OPGW lines), . Underground boxes should be placed in manholes or trenches with proper drainage.
2. Cable Preparation: Mark the cable, make a precise circumferential incision, remove the sheath, clean the fibers, and trim the strengthening members. Secure the cable with screws or clamps to maintain stability .
3. Mounting the Box: Position the joint box securely on the pole, tower, or in the trench. Ensure the enclosure is level and stable. For GR series boxes, the stainless steel screws and anti-static, UV-stabilized enclosure provide long-term durability .
4. Fiber Splicing and Tray Management: Feed fibers through transportation tubes, remove loose tubes, and perform fusion splicing. Place splices in trays with protective holders and strain reliefs to prevent fiber damage .
5. Sealing and Protection: Close the enclosure using IP68-rated sealing systems to prevent water ingress. For outdoor or submarine applications, ensure the box is resistant to corrosion, UV, and mechanical stress .
6. Testing and Documentation: After installation, test fiber continuity and signal integrity. Document the splice locations, fiber counts, and installation details for future maintenance .

Local Expertise in Greece

Companies like OPTRONICS Technologies provide specialized services for fiber optic network installations across Greece, including underground, aerial, industrial, and special constructions such as tunnels, ports, and refineries . Engaging experienced engineering staff ensures compliance with local standards and timely deployment.

Materials and Standards

• Aluminium alloy or GRP enclosures: Resistant to heat, corrosion, ozone, and UV .
• Splice trays: Compliant with DIN 47662 and telecom standards, providing organized and secure fiber management .
• Sealing systems: Maintain IP68 performance even after multiple re-openings, critical for FTTH and backbone networks .

Summary

Proper installation of fiber optic joint protection boxes in Greece involves selecting the right enclosure type, preparing the cable carefully, mounting securely, performing organized splicing, and sealing against environmental hazards. Utilizing local expertise and adhering to standards ensures long-term reliability, minimal maintenance, and optimal network performance .