G - Physics
02
B
G02B 6/44 (2006.01)
Patent
CA 2161007
An optical cable for use in an overhead optical transmission system in which the ca- ble is supported along the route of the system by means of towers, masts or other upstand- ing supports that are also employed to sup- port electrical power cables, comprises one or more optical fibres and an electrically in- sulating jacket (8). The cable includes an ar- ray of elongate conductive elements (10,12) each of which extends along a portion of the cable, adjacent conductive elements axially overlapping each other with overlapping por- tions circumferentially spaced apart to form a composite conductive path that extends along the cable and is interrupted when the cable is dry. Adjacent conductive elements (10, 12) are resistively coupled to each other when the surface of the cable is wet to form a continuous electrically conductive path along the cable. Such a form of cable has the advantage that the possibility of dry-band arcing under wet conditions is reduced by disrupting the geometry that allows such bands to form.
Platt Colin Andrew
Richards John
Rowland Simon Mark
Bicc Public Limited Company
Fetherstonhaugh & Co.
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