TRATOS® Kynar-HMWPE
Cathodic Protection Cable

Kynar insulated, High Molecular Weight Polyethylene (HMWPE) sheathed, single core cable.

Energy Cables / Cathodic Protection Cables

The single-core unarmoured cable is designed to be the connecting cable in cathodic protection systems worldwide. A fluoropolymer, Polyvinylidene fluoride (PVDF), Trade name Kynar, is a tough engineering thermoplastic, well known for its excellent resistance to a wide range of chemicals, most acids and acid mixtures, weak bases, halogens, halogenated solvents, hydrocarbons, alcohols, salts and oxidants. Kynar has high dielectric strength and excellent mechanical properties over a wide temperature range leading to it becoming a popular choice as a reduced wall primary insulation. Kynar has low permeability leading to its choice for special applications such as cathodic protection where chlorine and hydrogen gasses could be present.

Immediately over the inner layer of Kynar Tratos extrude a thick layer of High Molecular Weight Polyethylene (UHMW) which is a member of the thermoplastic polyethylene (PE) family. HMWPE is also known as high modulus polyethylene. HMWPE is a very tough material with the highest impact strength of all currently produced thermoplastics, which, combined with its excellent abrasion and wear-resistant smooth outer surface, make it ideal as a sheath or outer covering for cables to be installed in arduous conditions.  

HMWPE is resistant to concentrated acids, alkalis and other corrosive chemicals it is also resistant to many organic solvents. Like all Polyethylene’s HMWPE has excellent dielectric strength and electrical properties, as well as extremely low moisture absorption.

Tratos Kynar/HMWPE cables offer high performance and reliability over an extended lifetime in cathodic protection applications.

Contact us:

Tel: +44 20 3148 5178

e-mail: sales@tratosgroup.com

Please don’t hesitate to contact us if you need additional information about our products.

Application

Tratos Cathodic Protection Cables are single conductor cables that are intended to carry a DC current to anodes and cathodes in a cathodic protection system. Tratos Cathodic Protection Cables are designed for use in both active and passive cathodic protection systems to eliminate and prevent corrosion in Metals. Tratos Cathodic Protection Cables are used to eliminate and prevention the corrosion of steel pipelines and steel storage tanks, offshore oil and gas installations, offshore wind farms, ships and other maritime applications installed in air or water.

Specifications

  • Conductors: Tinned annealed copper conductors – BS EN 60228 Class 2
  • Insulation: Kynar- Polyvinylidene fluoride (PVDF)
  • Sheath: High Molecular Weight Polyethylene (HMWPE)
  • Standard size range: 10mm2 to 50mm2 (up to 185mm2 available on request)
  • Standard colours are RED and BLACK
*Other colours are available on request.

Standards

Technical Specifications

  • Minimum ambient air temperature -55 oC
  • Maximum continuous conductor temperature +105 oC

Minimum bending radius – Fixed Installation:

  • ≤ 8mm 4D
  • >8 ≤12mm 5D
  • >12 ≤20mm 6D
  • >12mm 6D

Maximum allowable pulling tension:

  • 50N/mm2 during installation
  • 15N/mm2 in service

Additional Information

CONDUCTOR – Material: Compacted tinned annealed Cu

Nominal CSA Nominal Diameter Max. resistance 20oC
mm2 mm Ω/km
10 3.8 1.84
16 4.65 1.16
25 5.83 0.734
35 6.8 0.529
50 8 0.391

Nominal CSA Nominal Diameter Max. resistance 20oC
mm2 mm Ω/km
10 3.8 1.84
16 4.65 1.16
25 5.83 0.734
35 6.8 0.529
50 8 0.391

INSULATION – Material: PVDF (KYNAR)

Nominal thickness Nominal Diameter
mm mm
0.5 4.8
0.5 5.65
0.5 6.83
0.5 7.8
0.5 9

Nominal thickness Nominal Diameter
mm mm
0.5 4.8
0.5 5.65
0.5 6.83
0.5 7.8
0.5 9

OUTER SHEATH – Material: HMWPE

Nominal thickness Nominal Diameter Nominal weight
mm mm kg/km
1.65 8.1 140
1.65 8.95 200
1.65 10.15 290
1.65 11.1 395
1.65 12.3 495

Nominal thickness Nominal Diameter Nominal weight
mm mm kg/km
1.65 8.1 140
1.65 8.95 200
1.65 10.15 290
1.65 11.1 395
1.65 12.3 495

Contact us

Please, don’t hesitate to contact us for additional information on our company or our products.


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