Patent ID: 6028269
Filing Date: 2000-02-22
Classification: H01B

Abstract:
A set of hollow and tapered composite insulators, comprising:a first voltage class insulator comprising a first one-piece hollow and tapered core having a first shape and a first length; anda second voltage class insulator comprising a second one-piece hollow and tapered core having a second shape different from said first shape and a second length longer than said first length, said second core having a first shape portion substantially common to the first shape of said first core and a second shape portion which is different from the first shape of said first core,wherein each of said insulators of said set of insulators includes a single sheath formed on an outer peripheral surface of each of said first and second cores, respectively, and a plurality of sheds formed on the single sheath and axially spaced from each other, the single sheath and sheds being integrally molded from an insulating polymeric resin.