Construction unit

Information Technology Department of FJ

Location

Xiamen Sea Area

Time

Construction design

1. Design of Changing the route. Select the relocated route of submarine optical fiber cables, design suitable turning points, organize route review, and apply for approval on behalf of the construction unit.

2. Design of submarine optical fiber cables. Including capacity, length, model, spare parts, etc.

3. Channel protection construction design. Including a 6-meter deep burial design, burial techniques, and protection requirements for special sections.

Main parameters

Cable model: ZTT SOFC-ASK430a/16B1

Outside Diameter: 36mm

Number of cores：16 cores with double armor

Weight per meter: 3.9kg/m

Total length of cables：12km

Laying depth：6.0m 

Water depth：16m

Seabed sediments： Muddy sand, sand, silt

Situation

(1) Submarine cable loading and transportation.

(2) Pull the submarine optical cable to joint wells

(3) The laying construction of submarine optical cables in the middle sea area, with a embedding depth of over 6.0m throughout the entire process.

(4) Salvage and recover the faulty submarine optical cable from Qingyu to Wuyu Island.And cut off the faulty submarine cables, add new cables, and carry on the installation of optical fiber splicing and joint box.Additional submarine cables and junction boxes are embedded at a depth of 3m.