Electricity: conductors and insulators – Conduits – cables or conductors – Combined
Patent
1981-08-28
1984-03-20
Prescott, A. C.
Electricity: conductors and insulators
Conduits, cables or conductors
Combined
174 41, 174 70A, 428379, 428383, H02G 1506, H02G 706
Patent
active
044382936
ABSTRACT:
The tendency of modern high strength synthetic fibres, e.g., made of aromatic polyamides, when utilized for tension load-carrying purposes in association with an overhead cable arranged parallel thereto within a common protective covering to slip under load out of the clamping members connected thereto before the load reaches its ultimate tensile strength is overcome by impregnating a bundle of such fibres with an impregnating material capable of breaking down into particles when subjected to sufficient compressive stress which is broken down into such particles by the application of the clamping member, the resultant particles exerting within the clamped region a wedging action between the individual fibres and at the exterior of the bundle as a whole upon the application of the tension load to the bundle. Particularly suitable impregnating materials are natural resins, especially colophonium.
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Brewster; Ray Q., Organic Chemistry; Prentice-Hall, Inc., pp. 777,778.
Daniel William J.
Kupferdraht-Isolierwerk AG Wildegg
Nimmo Morris H.
Prescott A. C.
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