Services

Installation of articulated pipes for subsea cable protection

DELTA GROUP’s range of Cable Protection Products is designed to provide protection for subsea cables at offshore wind or tidal energy foundations, in shallow water and at landfalls, boulder fields or areas of rocky seabed where cable burial is impractical. Consisting of a series of interlocking half-shell modules to form a vertebra bend restrictor around the cable, the DELTA GROUP Cable Protectors are developed from conventional ‘articulated pipe’ (also known as ‘split pipe’) and are manufactured in ductile iron to provide:

• Protection against impact and abrasion
• Increased seabed stability through added weight
• Reliable and strong bend restriction to ensure that product minimum bend radius is respected
• Ease of installation and cost-effective protection
• Greater articulation angle achieved at each joint than the conventional split pipe, facilitating the use over sheaves and chutes
• Smooth bore to facilitate longitudinal cable movement where required, for instance for cable pull-in or cable tension relief
• No sharp edges
• All bolted assembly. Identical top and bottom castings and use of large fasteners with built-in nut recesses for simplicity, speed and reliability of assembly whether onshore, on deck or subsea by divers
• Smooth outer profile for ease of pulling through apertures and structures