Combined electrical power & optical transmission system

Details Combined electrical power & optical transmission system Combined electrical power & optical transmission system

H - Electricity

02

G

H02G 7/00 (2006.01) G02B 6/44 (2006.01) H02G 7/22 (2006.01)

Patent

CA 2137963

A combined overhead electrical power and optical transmission system comprises overhead electrical phase conductors (2) extending between and supported by, towers (10), and at least one optical cable (1) that extends between and is supported by, the towers. The or each optical cable has a resistive element (12) that is removably supported thereby and which extends from a tower (10) where it is earthed part of the way along the span of the optical cable, and theresistive element has a length and conductivity such that if a dry band (6) occurs on the cable at the end of the element, the potential difference (VG') across the band is insufficient to form an arc, and/or such that the induced current is insufficient to sustain any arc that may occur across the dry band.

Un réseau aérien combiné de distribution électrique et de transmission optique comprend des conducteurs de phase aériens (2) s'étendant entre des tours (10) qui les supportent et au moins un câble optique (1) qui s'étend entre les tours qui le supportent. Le câble ou chacun des câbles optiques a un élément de résistance (12) qui s'y trouve supporté de façon amovible et qui s'étend à partir d'une tour (10) où il est mis à la terre sur une partie de la portée du câble optique, et l'élément de résistance a une longueur et une conductivité telles que, s'il y a une bande sèche (6) sur le câble au bout de l'élément, la différence de potentiel (VG') d'un côté à l'autre de la bande est insuffisante pour former un arc, et/ou telles que le courant induit est insuffisant pour soutenir tout arc qui pourrait se former d'un côté à l'autre de la bande.

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