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CP Wire and Cable

CP wire and cable is mainly used in impressed current cathodic protection system. This insulated cathodic protection cable has excellent electrical properties, mechanical properties, heat aging properties, strong resistance to environmental stress and chemical corrosivity. CP wire and cable is of low water absorption and simple structure. Besides, this insulated cathodic protection cable is easy to use. There is no limit of head drop during the cable laying. The primary insulation layer is Polyvinylidenfluoride (PVDF) and the outer sleeve (the secondary insulation) layer is High Molecular Weight Polyethylene (HMWPE). PVDF or HMWPE cables are extensively used in the cathodic protection system of highly corrosive environment.

Conditions of CP Wire and Cable:


0℃- 80℃




up to 31000ppm

PH (Chlorine Gas, Offshore)


Water Velocity Offshore

up to 1.5m per second
Design and Test of This Insulated Cathodic Protection Cable:
ICEA-S-95-658, IEC60502-1, IEC60228
Voltage Rating: 600-1000V
Construction of CP Wire and Cable:
1. Standard circular or shaped copper conductor
2. PVDF core insulation, HMWPE outer sheath

Specifications of This Insulated Cathodic Protection Cable:

Cable Size

PVDF Thickness

HMWPE Thickness

No of Strands(min)

1x10 0.51 1.65 7
1x16 0.51 1.65 7 or 19
1x25 0.51 1.65 19
1x35 0.51 1.65 19
1x70 0.76 1.65 19

Insulation Specifications of CP Wire and Cable:



PVDF Tensile Break Strength 4500 PSI min
Break Elongation 50%min
Flexural Strength 8600 PSI min
Resistivity 2x 1014 ohm-cm min
Dielectric Constant 8.0 min. at 100 HZ
HMWPE Color Black
Density 0.94 g/cm3 min
ASTM D1248 Type 3, Class C. IEC 60502-1
Corroco International Industrial Co., Ltd is a professional manufacturer and supplier of CP wire and cable in China. In addition to this insulated cathodic protection cable, we also produce test station, brazing pin, junction box, reference electrode, transformer rectifier, and other cathodic protection accessories. Based on 12 years' production experience, our company has become a big supplier market of China. We can supply you satisfied goods and reasonable price. Our products have been exported to the United States, Canada, Britain, Germany, Iran, Pakistan, India, Kuwait, Dubai, Saudi Arabia, the Philippines, Malaysia, Singapore, Congo, Turkey, etc.