Construction
Conductors: Cu circular compacted stranded conductor class 2 acc. to IEC60228
Outer sheath: HMWPE (High Molecular Weight Polyolefin)
CHARACTERISTIC
Maximum conductor operating temperature: +120oC
Lowest ambient temperature for fixed installation: -30oC
Lowest installation temperature: -5oC
Minimum bending radius: 10 x O.D. – overall diameter
What is cathodic protection cable?
In some specific environment, in order to protect corrosion of metal, a cable consists of a copper conductor insulated with a plastic compound that is highly corrosion and abrasion resistant designed.
The cathodic protection cable is used in gas and oil pipelines, water heaters, ship hull and wind farm foundations, the cathodic protection systems could protect metal equipment from corrosion.
The conductor is a soft annealed stranded copper (per spec ASTM B-3 & B-8)
Insulation is black high molecular weight polyethylene (HMWPE)
Temperature of operation is 75 degree Celsius
Rated for 600 volts
How does cathodic protection wire work?
In corrosive environment, to increase service life of metal equipment, the cathodic protection system is necessary to be application. The cathodic protection system will take the place of metal equipment to be aging. The PVDF cathodic protection cable’s greatest advantage is lost cost and easy installation. When the effect of protection lose, just pls buy a new cathodic protection cable and replace. The low cost and east installation of protection system is widely used in wharf, offshore drilling platform, oil field etc.
Types of Cathodic protection cable:
Copper Conductor/High Molecular weight Polyethlene(HMWPE) Sheath
Copper Conductor/Halar(ECTFE) Insulated/High Molecular weight Polyethlene(HMWPE) Sheath
Copper Conductor/Kynar(PVDF)/insulated/High Molecular weight Polyethlene(HMWPE)/Sheath
Specifications
| Conductor |
Insulation |
Finished Product |
| AWG |
Str |
Diameter (in.) |
HMWPE (in.) |
Diameter (in.) |
Lbs/Mft |
Nominal DC Ohms |
| 14 |
7 |
0.073 |
0.11 |
0.293 |
39 |
2.62 |
| 12 |
7 |
0.092 |
0.11 |
0.312 |
50 |
1.65 |
| 10 |
7 |
0.116 |
0.11 |
0.336 |
65 |
1.038 |
| 8 |
7 |
0.146 |
0.11 |
0.366 |
81 |
0.645 |
| 6 |
7 |
0.184 |
0.11 |
0.404 |
116 |
0.407 |
| 4 |
7 |
0.232 |
0.11 |
0.452 |
170 |
0.256 |
| 2 |
7 |
0.292 |
0.11 |
0.512 |
254 |
0.162 |
| 1 |
19 |
0.332 |
0.125 |
0.582 |
330 |
0.129 |
| 1/0 |
19 |
0.373 |
0.125 |
0.623 |
405 |
0.102 |
What is the purpose of cathodic protection cable (HMWPE Wire)?
Cathodic protection stops metal from corroding by controlling the chemical reactions that cause it. This technique is used to protect pipelines, tanks, offshore structures and other metallic components in corrosive environments.
Cathodic protection uses a direct current to make the metal structure the cathode in an electrochemical cell. This stops the metal from corroding and makes it last longer.
There are two main ways to protect metal with cathodic protection: galvanic and impressed current. Galvanic protection uses sacrificial anodes made of a more reactive metal, such as zinc or magnesium, to protect the structure. Impressed current protection uses an external power source to supply the necessary current to the structure, typically through inert anodes.
HMWPE Wire stops metal structures from rusting and keeps them safe and reliable.
