Applicators wrapping black composite pipe fabric around a corroded pipe.

Composite Pipe Repair

Industry: Power Transmission

Solution: Pipe-Type Cables - HPFF

ID: CPR-5-00133

Project summary:

The inspectors at an urban utility company found significant corrosion on the high voltage pipe-type cable systems used to service their customer base. These aging cable systems were routed through a tunnel which caused significant corrosion, especially at the tunnel entrance where moisture is more common. Advanced FRP Systems developed a solution that would protect and reinforce a long sweep elbow section with a high-strength, carbon fiber composite. A 6-layer system was installed to protect the pipes against further external corrosion and would provide a secondary pressure boundary capable of withstanding the full internal pressure of the pipes.

  • Date of installation: 2/22
  • Facility/Location: New York
  • Applicator: CTI
  • Products used:
  • FRP Repair Putty
  • FRP 120 HT Adhesive
  • FRP 210 HT Saturant
  • GF-300 BD
  • CF-500 BD
  • HP 300 Epoxy