DE3236972A1 - ELECTRIC WIRE - Google Patents

Description

C.E.Wi Ibud-R.D-Edwards-D.D.Jones 9-1-1

cable

The invention relates to cables = electrical cables Tubular cables and cable ducts for accommodating relatively small and sensitive optical cables are known.

Optical cables are used for economic reasons and to protect against the environment and mechanical influences in Cable ducts or pipes laid. Optical communications networks may require supervisory links and power supplies for repeaters must be available, metallic conductors being used as carriers for this. It is possible compound Manufacture cables with these possibilities, but with the Disadvantages of high cost, size, weight and shortening the length that can be laid. Failure of just a part of the assembled cable makes it unusable for its intended use.

The invention is based on the object of specifying a cable which has all of the functions specified above.

This problem is solved with the in claim 1 0 specified means. Advantageous refinements can can be taken from the subclaims.

ZT / Pl-Wr / R
05.10.1982 -4-

C.E.Wi lbud 9-1-1

The cable with the flexible tube can be laid on its own and be spliced and branching lines to Monitoring or power supply can be done without influencing from other optical cables. The components inserted into the jacket increase the protection of the optical Cable in the flexible tube.

The invention will now be explained with reference to drawings of exemplary embodiments explained in more detail. Show it:

Fig. 1 in cross section a cable with an optical Cable and two electrical cables;

Fig. 2 in cross section a cable with an optical Cable and four electrical conductors and

3 shows in cross section a cable with: an optical one Cables, electrical conductors, tensile elements and a water vapor barrier.

According to FIG. 1, a flexible tube 2 is inside a flexible tube 2 arranged loose optical cable 1, which is protected by the tube 2. The tube 2 in turn is of a jacket 3 surrounded. In the jacket 3 are two non-optical communication cables 4 embedded. The communication cables 4 are in this Trap quad cables whose individual metallic conductors 5 each are isolated and all shared by one Sheath 6 are surrounded.

The flexible tube 2 and the surrounding jacket 3 are produced by extrusion from conventional thermoplastic plastics material such as polyethylene.

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C.E.WUhud 9-1-1

In Fig. 2, a cable is shown in cross section, the an optical cable 1 inside the tube 2 and in the jacket 3 contains four bare conductors 7. The conductors 7 are direct isolated from the jacket material. These conductors can be used for transmission of messages or for power supply.

In Fig. 3, a cable is shown in cross section, which has an optical cable 1 inside the tube 2. Inside the jacket 3 are four bare conductors 7 and tensile strength Elements 8 arranged. Pie tensile elements 8 can be made of any high tensile strength material, such as steel, glass, aramid or carbon fibers. The elements 8 can be straight or spiral-shaped and one above the other, to maintain the structure.

The jacket 3 itself can be protected by a water vapor lock 9 to exclude liquids or vapors. The water vapor barrier is constructed from an overlapping metal-plastic composite tape 9, which is sealed at the overlap. The composite tape 9 is preferably surrounded by an outer jacket 11 which supports the seal at the overlap 10. The outer jacket 11 can consist of a material which is selected according to its coefficient of friction or its resistance to abrasion.

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Claims (6)

INTERNATIONAL STANDARD ELECTRIC
CORPORATION, NEW YORK C.E.WiLbud-R.D.Edwards-D.D.Jones 9-1-1 Claims \ 1y cable, d a d u r c h g e k e η η ze i ch η et, that there is one or more optical cables (1) loose in one flexible tube (2) with circular cross-section that the Tube (2) in turn by a jacket (3) made of plastic is surrounded and that in the jacket (3) e i η or more not optical cables (4) are arranged. 2. Cable according to claim T, characterized in that the cables (4) in the jacket (3) communication cables or conductors are. 3. Cable according to claim 1, characterized in that the cables (4) in the jacket (3) are energy cables or conductors. 4. Cable according to one of the preceding claims, characterized characterized in that one or more tensile strength in the jacket (3) Elements (8) are present. 5. Cable according to one of the preceding claims, characterized in that the tube (2) of a shielding metallic tape or composite tape (9) is surrounded, which is wrapped in an overlapping manner on the tube (2) and from the jacket (3) is held. ZT / Pl-Wr / R 05.10.1982 - 2 - C.E. Wilbud 9-1-1 6. Cable according to claim 5, characterized in that the composite tape (9) is wound onto the jacket (3) and surrounded by an outer jacket (11). -3-