Direct Burial Cable/Wire HALAR And HMWPE For Cathodic Protection

HALAR/HMWPE cable is designed for anode lead wires in a wide range of environments.

One of the major causes of deep anode failures is the failure of cable insulation. This is especially evident in areas where brackish water is present in the ground. In this environment, anodes generate reactive gases such as chlorine and na-cent oxygen. These gases cause rapid deterioration of conventional HMWPE insulation.

Cathodic protection cable insulated with HALAR fluoropolymer, is especially suited for deep anode lead wires. HALAR fluoropolymer is inert to reactive compounds and has an outstanding ability to prevent the passage of gases. Laboratory

and field evaluations indicate that HALAR fluoropolymer insulated lead wire can extend the life of deep anode installations. The cable is composed of stranded copper wire covered by two layers of insulation. The outer insulation layer is made from high molecular weight polyethylene (HMWPE). It exhibits superior dielectric and tensile strength, and provides mechanical protection to the cable.

The material is also resistant to water intrusion and is not affected by most organic or inorganic substances. The inner or primary insulation is composed of HALAR, a fluoropolymer. This insulating material demonstrates exceptional chemical

resistance. In the presence of chlorine, hydrochloric acid, sulfuric acid, or other strong oxidizing agents the material remains stable. Further, it will not deteriorate when exposed to petroleum hydrocarbons which are encountered in numerous cathodic protection applications.

The dual extrusion HALAR cable is made specifically for cathodic protection applications. It can withstand considerable abuse during installation.