How To Install Submarine fiber optic cable from FIber Optic Cable Manufacturer

Undersea fiber optic cable design must ensure that the environment and without outside influence,

The basic requirements are: to adapt to a subsea pressure, wear, corrosion, and biological environment; a suitable armor layer prevents fishing vessel trawling, anchors and shark damage; break the cable, the cable length to minimize water infiltration inside; energy from the outside to prevent the penetration of hydrogen within the cable and prevent the hydrogen generated internally; having a low resistance power supply circuit far; can withstand the tension during laying and recovery; the life of the general requirements in more than 25 years.

The deep (depth of 1,000 meters above) submarine cable-free steel wire armored structure, but the structure of the cable and the cable core reinforcing member (usually the center of the wire) must be able to protect the fiber to prevent high-pressure seawater and laying high recovery time tension. In order to prevent damage to the shark, but also on the deep-sea shark-infested waters of the cable sheath wrapped double spiral wound strip, and squeeze a polyethylene outer sheath.

Shallow (depth less than 1000 m) submarine cable deep-sea fiber optic cable with the same core structure, but shallow sea fiber optic cable have single or double wire armor. Armored wire layers and an outer diameter of the cable route according to the undersea environment, water depth, whether buried, fishing and other circumstances. [4] [5] [1]

Laying process

Submarine cable project was recognized as complex and difficult world of large-scale projects. In shallow water, such as water depth less than 200 meters of the sea using buried cable, and is used in the deep laid. Water is the main jet buried buried method. Buried at the bottom of the device there are several rows of spray holes, parallel distributed on both sides, the job of each hole while ejecting high pressure water jet to the seabed, the seabed sediment red open, forming submarine trench; an upper device has a fairlead, for guiding the cable (fiber optic cable) to the bottom of the submarine cable ditch, gully will be automatically filled in by the tide. Buried by the construction equipment towed boat forward, and make various instructions through the work of the cable. Deposited underwater cable laying equipment machines generally do not rely on the weight of the submarine cable laid on the seabed surface. [4] [3]

Boats continue straight ahead, then punch a robot under water ditch, into the cable, and then use the sand underwater robot punch back, covering the cable, and then continue to move forward, when you need to take on board the connections are complete, then sealed, and then continue laying. Currently undersea fiber optic cable all the cables have been few, and is currently laying are all buried in the soil, that is, the robot under water rushed into a ditch and then go again buried on earth. [4] [3]

Underwater robots actually use a high pressure water pump, the water pressure to a high pressure jet out to come out of the trenches. As for maintenance, this is no maintenance at all, usually do not require maintenance, just under water robot regularly exposed to survey whether there is cable, if there will be sediment cover up. Also, if broken, detector attenuation measurements can get the specific location, and then go to that pulled carried SPIDERS or otherwise, are usually cut off the damaged section of all, put a new one.