PH12016000447B1 - Lightning arrester - Google Patents

Abstract

The present invention relates generally to a lightning arrester (100) for lightning protection installations. Accordingly, the lightning arrester (100) includes: a) a finial (110) having a body (110a) between an upper section (112) and a lower section (111) and having a lightning receiving end (112a) at an end of the upper section (112); b) an inner insulating body (200) which is in fluid tight sealing engagement with the finial (11 0); c) an outer insulating shell (300) in association with the inner insulating body (200); d) a plurality of CD arms (400) circumferentially configured around the outer insulating shell (300) and radially extending thereof; e) a metal sheet (500) in communication with the CD arms ( 400) and serves to create capacitance effect; wherein the inner insulating body (200) is provided with a plurality of fluid discharge passages (262) to allow any access fluid or contamination to be discharged; wherein the outer insulating shell (300) is in fluid tight sealing engagement with the upper portion (200a) of the inner insulating body (200), such that a first and second hollow spaces (340, 320) are defined thereof to. achieve insulating effect; and wherein each of the CD arms (400) has an upper tip (410) extended toward the finial (110) and separated by an arcing gap (420) between them.