Electricity: conductors and insulators – With fluids or vacuum – With fluid-condition responsive and/or indicating means
Patent
1977-08-22
1980-01-22
Askin, Laramie E.
Electricity: conductors and insulators
With fluids or vacuum
With fluid-condition responsive and/or indicating means
174 30, 174140S, 174179, H01B 1702, H01B 1736, H01B 1744
Patent
active
041851617
ABSTRACT:
A modular lightweight, high voltage guyline insulator for VLF antennas. A glass fiber or "Kevlar" rod tension member that provides high tensile strength is enclosed by a porcelain jacket, which serves as a good high voltage insulator, preventing an arc breakdown along the surface and protecting the tension member from exposure to ultraviolet radiation which could cause the tension member to deteriorate. A rubber sleeve extends between each end of the porcelain jacket and a guyline fastening means, and together with the porcelain jacket forms a cavity or chamber around the tension member which is filled with SF.sub.6 gas, pressurized to 2 to 4 atmospheres (29.4 psia to 58.8 psia). Metal strips and metal toroid corona rings act to diffuse the electric field.
REFERENCES:
patent: 3159709 (1964-12-01), Austin et al.
patent: 3325584 (1967-06-01), Herzig
Lapp Insulators for 1928, Catalog No. 4, published Mar. 1928 by Lapp Insuor Co., Inc. of LeRoy, New York, p. 72.
Moore, John W., "PRD-49 A New Organic High Modulus Reinforcing Fiber", published by E.I. DuPont de Nemours and Co., Inc., Textile Fibers Department, Wilmington, Del., 18 pages.
Huang Kwang T.
Milner Brian R.
Askin Laramie E.
Sciascia Richard S.
St. Amand J. M.
The United States of America as represented by the Secretary of
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