Abstract:
A weather casing has axially spaced sheds extending equal distances from the body portion of the casing, or sheds near one end thereof which extend from the body portion graduated increasing distances as the end is approached, to encase insulating bodies including bushings of tapering outside diameters as well as outside diameters uniform over the length to be covered, and enhance washoff of the lower sheds for either type bushing body. The casings are cemented or clamped at the ends. No gaskets are required. Oil may fill a substantial space between a casing composed of resilient or elastic material and the bushing body, the casing by its resiliency or elasticity accommodating expansion or contraction of the oil due to ambient temperature changes and other causes. The body of the casing and/or the sheds may be so flexible that wind moves the sheds, breaking ice and throwing off snow. Where a filler material is added between casing and body of insulation, the elastic casing keeps the filler material under pressure at all times.