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EP0206226A2
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Submarine optical-fibres telecommunication line
Assignee: Pirelli and C SpA
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Filing: 1986-06-18
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Granted: —
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Expires: 2006-06-18
Abstract
Abstract The submarine line for optical-fibres telecommunications, comprises two optical-fibres cables (1, 2), and an optoelectronic repeater (3), interposed between them. The optoelectronic repeater (3) has its component parts encased in a watertight casing (4) that, in this turn, is enclosed in a metallic-box (13) - whose bases are provided with apertures, facing towards the cables. The apertures of the metallic-box (13) are sealingly closed by cylindrical bodies (22) - by means of which there is realized both, the mechanical connection - between the box (13) a.id the armouring of each cable (1, 2) formed by a rope (34) embedded in it, as well as the connection - between the optical-fibres (37) and the conductors of the cables, and the extremities of the optical-fibres (5) and of the electrical-conductor (6) of the optoelectronic repeater (3).
Inventors
- 👤 Paolo Gazzana Priaroggia
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 01:16
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/12; H02G15/14; G02B6/4401; G02B6/4415; G02B6/4427; G02B6/4428; G02B6/4439; G02B6/444; G02B6/4441; G02B6/4448
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
192 words
Submarine line for optical-fibres telecommunications, that comprises an optoelectronic repeater (3), for the signals transmitted, inserted in-between two submarine optical-fibres cables (1, 2) each provided with a watertight sheath (38) of the type wherein the mechanically-resistent armouring is a rope (34) - that occupies the radially innermost position of the cable, said line being characterized by the fact that the optoelectronic repeater (3) comprises a box (13) that is substantially tubular, and cylindrical bodies (22) made of polymeric material, and provided, on their exterior with a metallic sheath (30) that sealingly shuts the apertures in the box (13) bases, the said cylindrical bodies (22) englobing tracts of optical-fibres (28) for connecting with those (37) - of the cables and with those (5) - of the repeaters, and a first rope-length (24), having one extremity fixed to the cable rope (34) and the other extremity fixed to a mechanically-resistent element (9) made solid with the box (13) this latter enclosing a watertight casing (4) containing the component parts of the optoelectronic repeater, the metallic sheaths (30) of said cylindrical bodies (22) being moreover, connected in a watertight way, to the cable sheaths (38).
Claim 2
Dependent Claim
192 words
Submarine line for optical-fibres telecommunications, that comprises an optoelectronic repeater (3), for the signals transmitted, inserted in-between two submarine optical-fibres cables (1, 2) each provided with a watertight sheath (38) of the type wherein the mechanically-resistent armouring is a rope (34) - that occupies the radially innermost position of the cable, said line being characterized by the fact that the optoelectronic repeater (3) comprises a box (13) that is substantially tubular, and cylindrical bodies (22) made of polymeric material, and provided, on their exterior with a metallic sheath (30) that sealingly shuts the apertures in the box (13) bases, the said cylindrical bodies (22) englobing tracts of optical-fibres (28) for connecting with those (37) - of the cables and with those (5) - of the repeaters, and a first rope-length (24), having one extremity fixed to the cable rope (34) and the other extremity fixed to a mechanically-resistent element (9) made solid with the box (13) this latter enclosing a watertight casing (4) containing the component parts of the optoelectronic repeater, the metallic sheaths (30) of said cylindrical bodies (22) being moreover, connected in a watertight way, to the cable sheaths (38).
Claim 3
Dependent Claim
70 words
Submarine line, according to CLAIM 1, characterized by the fact that the first rope-length (24), englobed in the polymeric cylindrical body (22), has its extremities cantilevered from the latter, with the spaces between the component wires, at least in correspondence of the cantilevered extremities, being filled-up with metallic material (26), while - in the remaining portion of the rope-length, the spaces, in-between the wires, are filled-up with an incompressible fluid.
Claim 4
Dependent Claim
45 words
I 3. Submarine line, according to CLAIM 2, characterized by the fact that the metallic material (26) - that fills-up the spaces in-between the wires, is selected from amongst metals and metal alloys which have a temperature at melting point, that does not exceed 1000°C.
Claim 5
Dependent Claim
68 words
Submarine line, according to CLAIM 1, characterized by the fact that the lengths (28) of optical fibres englobed in the polymeric material of the cylindrical body (22), have their extremities cantilevered from this latter, the said optical-fibres lengths being connected to the polymeric material, with having the central length devoid of a protective plastic covering, and the cantilevered lengths (29) covered with a protection of the adherent type.
Claim 6
Dependent Claim
34 words
Submarine line, according to CLAIM 1, characterized by the fact that the metallic sheath (30) that outwardly covers the cylindrical bodies (22), is fixed sealingly to the polymeric material forming the cylindrical bodies (22).
Claim 7
Dependent Claim
87 words
Submarine line, according to CLAIM 1, characterized by the fact that the mechanically-resistent element, made solid with the box, comprises a second rope-length (8), housed inside a through-cavity of the watertight casing (4) enclosed inside the box (13) and containing the component parts of the optoelectronic repeater, the said second rope-length (8) having its extremities cantilevered from said casing and being covered by a layer (10) of electrically insulating material at least in the zone surrounded by the walls of said through-cavity of the watertight casing (4).
Claim 8
Dependent Claim
89 words
Submarine line, according to CLAIM 1, characterized by the fact that the watertight connection - between the cylindrical bodies (22) covered by a metallic watertigh sheath (30) and the cable sheath (38), comprises a tubular metallic body (41) whose extremities embrace and are connected sealingly, to the extremities of the cable sheath (38) and to the extremities of the metallic sheath (30) - of the cylindrical bodies (22), with having every space - comprised in-between tubular body (41), cables (1,2) and cylindrical bodies (22), filled-up with an incompressible fluid.
References Cited (Backward Citations)
No citation records indexed.
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