Cathodic Protection Cable

The quality of the cable is extremely important for the efficiency of cathodic protection system, specially the anode cables. Commonly use cathodic protection cables are PVC/PVC, PE/PVC, EPR/CSP, XLPE/PVC, XLPE/PVC/SWA/PVC, PVDF/HMWPE etc. Cables used for cathodic protection systems must be highly corrosion resistant and capable of withstanding adverse environments to which they are exposed. High Molecular Weight Polyethylene (HMWPE) is suitable for most environments.  In saline environment, we recommend KYNAR/HMWPE or HALAR/HMWPE cables, which are dual extruded highly chlorine resistant power cables.

HCT supplies all types of cables used in cathodic protection system. Some specialty cables details are given below.

HMWPE Cable for Cathodic Protection: High Molecular Weight Polyethylene (HMW-PE) Cathodic Protection Cables: 600 Volts, Single Conductor, Stranded Copper. Stranded copper conductor conforms to ASTM Specification B-8. Insulation is high molecular weight polyethylene conforming to ASTM D-1248, Type 1, Class A, Category 5, Grades E4 & E5. Tensile Strengths Jl, J3. Available with high density polyethylene (Types II, III, IV) Class B & C (all colors).

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Applications: A direct burial DC cable for use in cathodic protection applications such as anode lead wires, header cables, structure connections, test leads and more.  The product can also be used for submerged installations in water tanks, offshore structures and other similar applications. The polyethylene insulation is durable, abrasion resistant and flexible but has temperature and chemical limitations.

Halar/HMWPE Cable: Cathodic Protection Cables, Primary Halar Insulation, HMW (High Molecular Weight) Polyethylene Jacket.

Stranded bare copper conductor conforms to ASTM Specification B-8. An insulation of homogeneous wall of natural ECTFE fluoropolymer (Halar) shall be extruded over the conductor, jacket insulation is high molecular weight polyethylene conforming to ASTM-D-1248, Type 1, Class A, Category 5, Grades E4 and E5. Tensile Strengths Jl, J3. Available with high density polyethylene (Types II, III, IV) Class B and C (all colors). Surface printed. Custom printing available.

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Applications: A direct burial cable for use in cathodic protection deep well installations or other situations where resistance to chlorine gas is required.

The primary ECTFE (Halar) insulation provides chemical resistance properties. The secondary or outter jacket of high molecular weight polyethylene (HMWPE) provides abrasion resistance.

Kynar/HMWPE: Cathodic Protection Cables, Primary Kynar Insulation, HMW (High Molecular Weight) Polyethylene Jacket. Stranded bare copper conductor conforms to ASTM Specification B-8. A homogeneous wall of natural PVDF fluoropolymer (Kynar) shall be extruded over the conductor.

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An Insulation of high molecular weight polyethylene conforming to ASTM-D-1248, Type 1, Class A, Category 5, Grades E4 and E5. Tensile Strengths Jl, J3. Available with high density polyethylene (Types II, III, IV) Class B and C (all colors). Surface printed. Custom printing available.

Application: A direct earth burial, DC lead, cathodic protection cable for use in deep anode groundbed installations, designed to withstand corrosive gases.

Halar vs PVDF

CP Cables can have several layers of coating on them.  In addition to the HMWPE layer (which can be used alone for CPC), one of the most important layers is fluoropolymer insulation, which is often then covered with an HMWPE jacket.  Mostly CP cables has two different types of fluoropolymers: ECTFE (Halar) and PVDF(Kynar).

ECTFE (Halar) PVDF(Kynar).
  • Excellent abrasion resistance
  • Mechanical properties over a wide range of temperatures
  • Chemical resistance to a variety of acids, bases and organic solvents
  • Rated for continuous use from cryogenic temperatures up to 150°C and higher
  • Good electrical properties
  • Fire and Smoke performance
  • Excellent weatherability

 

  • Excellent fatigue, creep and cut-through resistance
  • Readily cross-linkable with ionizing radiation after compounding with co-agents
  • Chemical resistance to a variety of acids, bases and organic solvents
  • Low melting point of 177°C (easier melt process)
  • Fire and Smoke performance
  • Good electrical properties
  • Excellent weatherability
  • Low density
  • Low cost

EPR/CSP Cables for Cathodic Protection: we supply Ethylene Propylene Rubber (EPR) / Chlorosulphonated Polyethylene (CSP) cables that are manufactured as per IS specifications. These cables are created using high quality elastomeric material. These cables can be availed from us as per the specific customized requirements and specifications of the clients.