Title:
VARIABLE-LENGTH LIGHTNING STRIKE DOWN-CONDUCTOR
Document Type and Number:
WIPO Patent Application WO/2012/115721
Kind Code:
A3
Abstract:
A variable-length lightning strike down-conductor is provided that allows for optimized ground path length, where excess down-conductor (grounding) cable is tightly coiled (e.g., as a mono-spiral coil) on a cable reel. Specifically, a primary down-conductor cable from an adjustable-length air terminal is clamped between the air terminal and the cable reel at any intermediate length, and the clamp is shunted to the ground plane (e.g., earth ground) through a second low-impedance down-conductor cable, as opposed to the high-impedance coiled down-conductor cable, thus increasing down-conductor effectiveness by reducing the impedance seen by a lightning strike to reach the ground plane.
Inventors:
HIGBY JOHN P (US)
Application Number:
PCT/US2012/020394
Publication Date:
June 13, 2013
Filing Date:
January 06, 2012
Export Citation:
Assignee:
RAYTHEON CO (US)
HIGBY JOHN P (US)
HIGBY JOHN P (US)
International Classes:
H02G13/00; H02G1/02
Foreign References:
| US6460795B1 | 2002-10-08 | |||
| US20020162671A1 | 2002-11-07 | |||
| EP2073305A1 | 2009-06-24 | |||
| US7078621B1 | 2006-07-18 |
Attorney, Agent or Firm:
DURKEE, Paul, D. et al. (Crowley Mofford & Durkee, LLP,354A Turnpike St., Suite 301, Canton Massachusetts, US)
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