What are the types of cables of the ROV floating tether cable

2022-08-03

what is rov tether cable

Scope of application

ROV tether cable are widely used in interconnecting subsea installations; connecting subsea installations to fixed and floating platforms as well as connecting systems to shore.

The tether cable that connects the RoV with the controller significantly affects the underwater performance of the ROV, and it's vital that the cable ensures a stable signal transmission during subsea operation.

Features

Due to the harsh and dangerous underwater environment and the limited diving depth of people, underwater robots have become an important tool for developing the ocean and its rapid development, and the cables of underwater robots have become its important basic accessories, so there are special requirements for underwater cables. Underwater cables have oil resistance, corrosion resistance, acid and alkali resistance, seawater resistance, hydrolysis resistance, anti-interference, high tensile strength, high safety, bending resistance, tear resistance, and can withstand heavier mechanical external forces. The underwater cable moves back and forth with the equipment at high speed, and is collected with a reel to become the main supply cable for the underwater robot. Since the cable is long, and the underwater robot itself is relatively small and light, the cable should be as light as possible, and the outer diameter should be as small as possible.

Product types and parameters

It is composed of an outer sheath and a cable core. The cable core is a control signal line. The outer sheath is a foam layer. There is a waterproof layer between the foam layer and the control signal line. The waterproof layer is tightly wrapped on the outer layer of the control signal line. . The overall structure of the floating cable is simple, the function is reliable, it can overcome its own weight and float on the water surface, and it has good waterproof performance. There is no misalignment, twisting and deformation between the cable cores after long-term use, which can fully meet the requirements of the robot when it works underwater for a long time. need for cables.

The types of floating lines are generally divided into 8 categories

ROV buoyant tether cable

shielded twisted pairs rov umbilical cableWhat are the types of cables of the ROV floating tether cable (图1)

twisted pairs neutral buoyant rov cable

Coaxial cable ROV cable

Fiber optic ROV cable

Hybrid communication cable

Video hybrid cable

Fiber optic hybrid cable

Later, we will interpret the specific characteristics of each type of floating line in detail.