Cable and method for its manufacture
A cable, in particular a data cable, extends in a longitudinal direction and has a number of lines and a structural element extending in the longitudinal direction for stiffening the cable. The lines are embedded in the structural element. Here, the lines and the structural element are surrounded by a common shield made of a conductive material. Due to the special arrangement of the shield, a particularly compact structure can be provided. A method for producing the cable is also provided.
1. A cable, comprising:
a structural element for stiffening the cable extending in a longitudinal direction of the cable, said structural element being rigid and consisting of a glass fiber-reinforced or carbon fiber-reinforced resin or plastic, said resin or plastic connecting fibers of said resin or plastic to one another for forming said structural element;
a plurality of lines embedded in said structural element; and
a common shield made of a conductive material surrounding said lines and said structural element.
2. The cable according to claim 1 , wherein said lines and said structural element together form a composite without gaps.
3. The cable according to claim 1 , wherein said lines are embedded in a fiber-resin matrix.
4. The cable according to claim 1 , wherein each of said lines is an un-shielded line.
5. The cable according to claim 1 , wherein said structural element is guided centrally.
6. The cable according to claim 1 , wherein said structural element has a circular peripheral contour in cross section perpendicularly to the longitudinal direction.
7. The cable according to claim 1 , wherein said structural element is formed as a cylinder, and said lines are embedded in said cylinder.
8. The cable according to claim 1 , wherein said lines are each arranged in a radial direction in an outer-most portion of said structural element.
9. The cable according to claim 1 , wherein said lines are distributed uniformly in a circumferential direction.
10. The cable according to claim 1 , wherein at least one of said lines comprises a plurality of conductors, which are insulated from one another and which are stranded with one another.
11. The cable according to claim 1 , which comprises a stabilizing layer arranged between said structural element and said shield.
12. The cable according to claim 1 , which comprises an outer sheathing disposed to surround said shield.
13. The cable according to claim 1 , configured for use with a camera system for examining pipelines.
14. A cable, comprising:
a structural element for stiffening the cable extending in a longitudinal direction of the cable, said structural element being rigid and consisting of a glass fiber-reinforced or carbon fiber-reinforced resin or plastic, said resin or plastic connecting fibers of said resin or plastic to one another for forming said structural element;
a plurality of lines embedded in said structural element;
a resin added to said structural element and said lines being glued to said structural element; and
a common shield made of a conductive material surrounding said lines and said structural element.
15. The cable according to claim 14 , wherein said stabilizing layer is formed as a winding or a braid.
16. A method of producing a cable which extends in a longitudinal direction, the method comprising:
embedding a number of lines in a structural element extending in the longitudinal direction and configured for stiffening the cable;
surrounding the structural element and the lines embedded in the structural element with a common shield made of a conductive material;
forming the structural element as a rigid structural element consisting of a glass fiber-reinforced or carbon fiber-reinforced resin or plastic, said resin or plastic connecting fibers of said resin or plastic to one another for forming said structural element.
17. The method according to claim 16 , which comprises producing a cable according to claim 1 .
18. The method according to claim 16 , wherein the structural element is produced from a fiber material, and wherein the lines are embedded in the structural element to form a common composite from the lines and the fiber material.
19. The method according to claim 18 , which comprises drawing the composite through a resin bath and then curing.
20. A method of producing a cable which extends in a longitudinal direction, the method comprising:
embedding a number of lines in a structural element extending in the longitudinal direction and configured for stiffening the cable;
surrounding the structural element and the lines embedded in the structural element with a common shield made of a conductive material;
forming the structural element as a rigid structural element consisting of a glass fiber-reinforced or carbon fiber-reinforced resin or plastic, said resin or plastic connecting fibers of said resin or plastic to one another for forming said structural element and
adding a resin to the structure element and gluing the lines to the structural element.