NSW - Submarine Telecommunications Cable

• Fiber-optic submarine cables and accessories for submarine cable systems
• Turnkey submarine cable systems for established network operators and investors who wish to construct new submarine telecommunications networks
• Repair and maintenance services for submarine cable systems to ensure optimal availability and reliability of these systems.

Fiber-optic Submarine Cables & Accessories The most important cable product of NSW is MINISUB®, a lightweight but very rugged fiber-optic submarine cable with unique features that make it anoutstanding cable for submarine cable systems:

• a high number of fibers (up to 144 fibers, even more upon request)
• a welded central copper tube assures optimal protection of the fibers against hydrogen ingress
• fiber excess length. In contrast to tubes with a separates core, the fiber optics in MINISUB®cables are not connected to the outer structure of the cable. This prevents damage to the fibers while handling and laying the cables and assures the excellent optical properties of the fibers over the entire service life of the cables.
• high density leads to optimal laying speed and simplifies precise positioning of the cable while laying.
• compact design and a small reliable bending radius facilitate cable handling, logistics and installation.

You can find more information on our brochure.

Besides the MINISUB® submarine cables, NSW’s products also contain flexible submarine cable splice sleeves, specially developed hydrogen-tight submarine housing sleeves and additional submarine cable hardware.

Turnkey submarine cable systems

With complete project management up to the finished installation, NSW makes it easy for you. With several decades of experience as the leading company in submarine cable systems, we can also provide you with the following:

Assessment & planning

At the beginning of a project, NSW can perform a market analysis for the customer and then help in the development of the business plan necessary to secure financing. The appropriate system equipment and route are worked out in a detailed desktop study. The engineering requirements on the planned cable system are determined from this study, the legal and commercial preparations made and applications are made for any necessary rights of way. In addition, we obtain information on additional permits (environmental, governmental, etc.) that play a decisive role in project implementation.

Sea survey

After initial planning, NSW contracts for a sea survey to confirm and update the information from the desktop study. This is how we compile all the relevant data such as water depth and soil conditions along the planned route. Based on these studies, we specify the precise cable route and the protective measures necessary for the cable along the route. The optimal cable types, connections, housings and additional accessories — including the transmission technique — are selected. If technical changes to the cable or accessories are necessary to satisfy project requirements, we begin making those changes at this time.

Implementation

NSW manages the entire system installation phase, procures all necessary installation permits, plows the cables into the sea floor as needed, compiles complete documentation for the system, monitors testing and system acceptance, and arranges for preliminary and final customer acceptance. Customer personnel are trained in system operation.

Repair and maintenance services

One component of every turnkey project is a discussion on the future repair and maintenance requirements for the cable system with the customer. If desired, NSW can compile and implement a comprehensive repair and maintenance package to ensure optimal availability of the cable system over a stipulated period. You can find more information on this topic in the Services area.