Patent ID: 6337439
Filing Date: 2002-01-08
Classification: G02B,H02G

Abstract:
An installation comprising:an all-dielectric self-supporting cable suspended at an earthed suspension region thereof in an electric field from a tower; and a device fitted to the cable adjacent said earthed region, said device comprising: a sleeve fitted to the all-dielectric self-supporting cable, and two closures for the sleeve engaged with the cable at longitudinally spaced apart locations thereby forming with the cable and the sleeve a closed zone between the closures for limiting dry band arcing; wherein one of said closures is provided at a first end of said sleeve closest to the earthed suspension region; wherein the other of said closures is provided intermediate said first end and a second, open end of the sleeve remote from said region to form an open zone between said other closure and said open end of the sleeve; and wherein there is an annular gap of at least 75% of the diameter of the cable between the cable and the sleeve in said open zone.