Title :
New developments in medium and high voltage cable with laminate sheaths as moisture barriers
Author_Institution :
Dow Chem. Co., Granville, OH, USA
Abstract :
The development of medium- and high-voltage cables with moisture barriers as a countermeasure to water treeing is reviewed. The moisture barrie can take traditional forms, including extruded or welded metallic tubes. The latest moisture-barrier cable designs use laminate sheaths. The traditional design approaches and the evolution of the laminate sheath are discussed. The various designs, under-jacket with foil or sheet, or on-core, are described. Design considerations are also discussed. Information on deployment in the field and standardization activities is also included.<>
Keywords :
cable sheathing; electric breakdown of solids; high-voltage techniques; laminates; power cables; standardisation; design considerations; field deployment; foil; high-voltage cables; laminate sheaths; medium-voltage cables; moisture barriers; on-core; sheet; standardization activities; under-jacket; water treeing; Cable shielding; Communication cables; Dielectrics and electrical insulation; Laminates; Medium voltage; Moisture; Plastics; Power cables; Standardization; Trees - insulation;
Journal_Title :
Electrical Insulation Magazine, IEEE
