In addition to the conductive properties, weatherability, and the characteristics of the use of the towline environment and other basic requirements can match with the equipment, the most important basic feature is: can withstand long bending movement and ensure normal work.

　　As the towline may be oil and other pipes (water, gas, etc.), compared with the conventional cable also need to have oil resistance and a certain tensile strength, to ensure that the cable is working properly.

　　Drag Chain Cable design, manufacture, the vast majority of the principle and conventional cable close, the difference is: the flexibility of the conductive material, the tensile resistance of the insulation material, the combination of core, auxiliary material with, wrapped or inner jacket The protection of the requirements of the shield and the outer jacket of the material and requirements, which are different from conventional cables.

　　Drag Chain Cable common errors:

　　1, ordinary jacket cable is not into the towline;

　　2, the existence of design defects in the cable: the diameter of the inconsistent core combination, not carefully designed, resulting in uneven cable at all points, resulting in the use of cable life greatly reduced.

　　3, Drag Chain Cable In order to increase the flexibility and mechanical strength, generally need to be auxiliary features, such as by conventional cable to reduce the lay length is not feasible;

　　4, outer jacket material, the general shrinkage slightly stronger material is conducive to the cable life. Ordinary PVC is not available with Drag Chain Cable outer jacket using standard.