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Cable, HMWPE Insulation for Cathodic Protection by Farwest Corrosion

The most widely used cable in cathodic protection is commonly known as "HMW" or "HMWPE", which refers to the cable jacket or insulation.  HMWPE is short for High Molecular Weight Polyethylene, which is a durable, abrasion resistant and flexible.  This feature allows HMWPE to be "direct buried" and does not normally require installation conduit.  However, HMWPE does have some termperature and chemical limitations. This cable insulation color is usually black (standard). However, other custom colors are available depending the cable size and quantity purchased. Applications: This cable is typically used as a DC cable in cathodic protection applications, such as anode lead wires, header cables, structure connections, bond cables, test lead cables and more.  It can also be used for submerged installations in water tanks, offshore structures and other similar applications. Standards: ConductorStranded copper conductor conforms to ASTM Specification B-8.  InsulationInsulation 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). Construction: Annealed, uncoated, stranded copper conductor, High Molecular Polyethylene insulation. Surface printed.

Created by: Pipeline Corrosion Control

Last updated 11/2025

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Description

The most widely used cable in cathodic protection is commonly known as "HMW" or "HMWPE", which refers to the cable jacket or insulation.  HMWPE is short for High Molecular Weight Polyethylene, which is a durable, abrasion resistant and flexible.  This feature allows HMWPE to be "direct buried" and does not normally require installation conduit.  However, HMWPE does have some termperature and chemical limitations. This cable insulation color is usually black (standard). However, other custom colors are available depending the cable size and quantity purchased. Applications: This cable is typically used as a DC cable in cathodic protection applications, such as anode lead wires, header cables, structure connections, bond cables, test lead cables and more.  It can also be used for submerged installations in water tanks, offshore structures and other similar applications. Standards: ConductorStranded copper conductor conforms to ASTM Specification B-8.  InsulationInsulation 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). Construction: Annealed, uncoated, stranded copper conductor, High Molecular Polyethylene insulation. Surface printed. Size (AWG) No. of Strands CircularMils AWGDiameterInches InsulationThicknessInches NominalDiameterInches WeightLbs per1000 ft. DC Ohms per 1000 ft.at 20 C #14 7 4,110 .0726 .110 .293 38 2.624 #12 7 6,530 .0915 .110 .311 48 1.65 #10 7 10,380 .116 .110 .340 62 1.038 #8 7 16,510 .146 .110 .370 87 .663 #6 7 26,240 .184 .110 .408 122 .411 #4 7 41,740 .232 .110 .456 175 .258 #2 7 66,360 .283 .110 .510 260 .162 #1 19 83,690 .322 .125 .580 330 .129 #1/0 19 105,600 .362 .125 .620 401 .102 #2/0 19 133,100 .406 .125 .660 492 .081 #4/0 19 211,600 .512 .125 .770 750 .051
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