초록 ▼

An installation 10 comprising a line 12 extending between and suspended from a plurality of spaced apart aerial suspension locations 14 defines a passage for an optical fiber unit. The line comprises a plurality of elongate tensile resistant tubes 18 connected end-to-end by respective connectors 20.

An installation 10 comprising a line 12 extending between and suspended from a plurality of spaced apart aerial suspension locations 14 defines a passage for an optical fiber unit. The line comprises a plurality of elongate tensile resistant tubes 18 connected end-to-end by respective connectors 20. The line is secured to each suspension location by respective securing means 22 which are secured to said line at two spaced apart locations 28, 30 thereon such that the portion 26 of said line between these locations is untensioned and includes a connector 20. The securing means 22 is adapted to allow tensioning of the portion 26 of said line when the tensile load on the line adjacent thereto on either side of said suspension location reaches a first predetermined amount, and the connector 20 is adapted to cause the end-to-end connection of the tensile resistant tubes 18 connected thereby to break when the tensile load on said portion reaches a second predetermined amount. The first and second predetermined amounts are less than the tensile load for breaking the tensile resistant tubes and said second amount is no greater than said first amount.

대표청구항 ▼

[ We claim:] [1.] An installation comprising a line extending between and suspended from a plurality of spaced apart aerial suspension locations and defining a passage for an optical fibre unit, said line comprising a plurality of elongate tensile resistant members connected end-to-end by respective

[ We claim:] [1.] An installation comprising a line extending between and suspended from a plurality of spaced apart aerial suspension locations and defining a passage for an optical fibre unit, said line comprising a plurality of elongate tensile resistant members connected end-to-end by respective connector means, said line being secured to each suspension location by respective securing means secured to said line at two spaced apart locations thereon such that the portion of said line between said locations thereon is untensioned and includes a said connector means, said securing means being adapted to allow tensioning of said portion of said line when the tensile load on the line adjacent thereto on either side of said suspension location reaches a first predetermined amount and the connector means being adapted to cause the end-to-end connection of the tensile resistant members connected thereby to break when the tensile load on said portion reaches a second predetermined amount, said first and second predetermined amounts being less than the tensile load for breaking the tensile resistant members and said second amount being no greater than said first amount.