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Where improved corrosion resistance is required, for example in deep beds, the use of double sheathed Kynar/HMWPE cables is recommended. Experimentally, anode cables in deep wells are the main cause of system inefficiency. By discharging the anodic current in the cathodic protection anodes, a large area of chlorine gas is produced. Chlorine gas is destructive and the deterioration of the insulating coating leads to the failure of the copper cable and consequently the loss of the anode in the cathodic protection circuit. In double-coated cables, the outer coating, which is made of standard HMWPE, creates very favorable physical properties such as wear resistance. The inner layer consists of a homogeneous PVDF fluoropolymer (PVDF) wall, which has a very high resistance to chlorine ions. Also, Kynar is resistant to many chemicals such as hydrochloric acid and sulfuric acid.
Arman Gostar Karun Company was established in 2012 in the field of business and technical consulting and implementation and supply of equipment, including underground pipeline covers and condic protection in order to cooperate with oil, gas, petrochemical projects, etc.
