Manufacture of a flexible stranded body

Details Manufacture of a flexible stranded body Manufacture of a flexible stranded body

H - Electricity

01

B

26/132, 26/197

H01B 13/06 (2006.01) G02B 6/44 (2006.01) H01B 5/10 (2006.01)

Patent

CA 1167244

ABSTRACT An overhead electric conductor with optical fibres loosely housed in the bore of a central core, which bore also contains a greasy water impermeable medium 4, is manufactured by causing a preformed elongate metal member of U-shaped transverse cross-section and the optical fibres to advance in the direction of their lengths, the rate of advance of the fibres being restrained. As the U-shaped elongate member is transversely folded around the optical fibres greasy water-impermeable medium is injected into the bore of the elongate metal member under a controlled pressure. The consistency of the greasy water-impermeable medium the pressure and rate at which it is injected into the bore and the degree of restraint imparted to the optical fibres 3 is such that, in a predetermined length of the conductor, the length of the optical fibres exceeds the length of the bore by a controlled extent, preferably 1 to 3%.

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