Optical waveguides – Optical transmission cable – With electrical conductor in the same cable
Patent
1994-12-06
1996-10-08
Bovernick, Rodney B.
Optical waveguides
Optical transmission cable
With electrical conductor in the same cable
385109, 385141, 174 70R, G02B 644
Patent
active
055639763
ABSTRACT:
A linear element (1,61) suitable for extending between, and being supported by, towers of an overhead electrical power transmission system, includes one or more electrically semiconductive components (54, 62) that cause the element to have a linear resistance of 0.05 to 100 Mohms m.sup.-, and which exhibit a negative temperature coefficient of resistance. The element may be a rope used for stringing up conductors of the system or it may be an optical cable. Preferred materials for forming the semiconductive components include carbonaceous fibre tows formed from pyrolised acrylonitrile fibres. The element has a controllable and reproducible resistance for reducing or eliminating dry-band arcing.
REFERENCES:
patent: 4365865 (1982-12-01), Stiles
patent: 4673247 (1987-06-01), Oestreich
patent: 4776665 (1988-10-01), Oestreich
patent: 4815813 (1989-03-01), Arroyo et al.
patent: 4838635 (1989-06-01), Oestreich
patent: 5195158 (1993-03-01), Bottoms, Jr. et al.
patent: 5233736 (1993-08-01), Hill
"Self-Supporting Dielectric Fiber Optic Cables in High Voltage Lines," Ulrich H. P. Oestreich and Hani M. Nassar, International Wire & Cable Symposium Proceedings 1988, pp. 79-82.
"Development of aerial fibre optic cables for operation on 400 kV power lines," A. J. Peacock and J. C. G. Wheeler, IEE PROCEEDINGS-A, vol. 139, No. 6, Nov. 1992, pp. 304-314.
"Carbon Black For Electrically Conductive Plastics" by David J. Sommers, May 1983, pp. 83-99, copyright 1984, Polym. -Plast. Technology Eng., 23(1).
"Anomalous Electrical Behaviour of Polymer-Carbon Composites as a Function of Temperature" by R. F. Reidy and G. Simkovich, Journal of Materials Science, 28, 1993, pp. 799-804.
Copy of 8049c IEE Proceedings-Part C. vol. 139, No. 3, Stevenage, Herts., GB-article dated, May 1, 1992, by C. N. Carter and M. A. Waldron, Mathematical model of dry-band arcing on self-supporting, all dielectric, optical cables strung on overhead power lines, pp. 185-196.
BICC Public Limited Company
Bovernick Rodney B.
Nath Gary M.
Sanghavi Hemang
LandOfFree
Semiconductive linear element including partially pyrolised poly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductive linear element including partially pyrolised poly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductive linear element including partially pyrolised poly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-63421