Electricity: conductors and insulators – Lightning protection
Patent
1990-08-21
1991-12-17
Askin, Laramie E.
Electricity: conductors and insulators
Lightning protection
174 3, 174 4R, H02G 1300
Patent
active
050736787
ABSTRACT:
Underwriters Laboratories lists lightning protection components as described in their UL 96, Third Edition Publication. The present invention improves on the basic lightning rod systems. The improvement provides a multiplicity of points extending in all directions from the top of a supporting rod which is designed to fit the conventional lightning rod mounting bases. The points are separated and configured to produce maximum ionization current commensurate and configured to carry an above average lightning strike current flow. The result is a hybrid lightning air terminal and lightning prevention system module named the Spline Ball Terminal (SBT). The SBT partially equalizes the charge differential between the protected site and the cloud thereby preventing many strokes from occurring. If a high energy stroke does enter the protected zone, then the SBT acts like a traditional UL approved lightning rod, but with much greater efficiency. The SBT is the only UL listed hybrid lightning dissipation and lightning rod system that can satisfy both design criteria.
REFERENCES:
patent: 1096 (1839-03-01), Barber
patent: 1193848 (1916-08-01), Van Horn
patent: 1757172 (1930-05-01), Cazel et al.
patent: 3120625 (1964-02-01), Smith
patent: 4180698 (1979-12-01), Carpenter, Jr.
patent: 4605814 (1986-08-01), Gillem
patent: 4910636 (1990-03-01), Sadler et al.
Catalog:Thompson's Lightning Protection Special Equipment, Thompson Lightning Protection, Inc., St. Paul, Minn., copyright 1967, pp. 9 and 11, copy in 174-3.
UL96, Standard for Safety, Lightning Protection Components, 12-88.
Askin Laramie E.
Lightning Eliminators & Consultants Inc.
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