DE1043450B - Gas pressure-tight cast resin locking sleeve for multi-core electrical cables, especially for communication cables under internal gas pressure - Google Patents

Description

GERMAN

There are known cast resin sleeves in which the axially guided conductors or wires in transverse to Sleeve axis arranged spacers are stored. As a result, when pouring the socket or Sleeve shape, the prescribed wire position or an even mutual spacing of the wires is ensured. However, this version is only applicable for electrical cables with a few cores, e.g. B. for power cables, suitable. If the cable contains a large number of wires, e.g. B. in telecommunication cables, control cables etc., this arrangement would result in large socket diameters, since a certain one the mutual distance between the cores must not be undercut.

According to the invention, in a gas pressure-tight cast resin locking sleeve for multi-core electrical Cables, especially for telecommunication cables under internal gas pressure, in which the bare wires are enclosed within the sleeve by the cast resin, the bare wires in one of the incoming and the outgoing cable associated guide body mounted transversely to the cable axis. Advantageously, the Guide body in the form of a double T-piece, its web between the incoming and the outgoing Cable lies and in its flanges transversely running guide channels for storage of each other connected bare wires are incorporated. But it is also possible to the incoming and outgoing Assign cables to separate, preferably plate-shaped guide bodies.

It is a connection sleeve for multi-core electrical Cables or lines, in particular telecommunication cables with a housing that consists of two stackable There are parts to which the two lengths of cable or wire to be connected are to be connected are connected, became known in which the two housing parts with comb-like cutouts are provided, in which the ends of the wires of each cable or line length are inserted and which are brought when collapsing the housing parts in the appropriate direction, so that each of one Section of a housing part protruding wire end with that from the corresponding section of the other housing part protruding wire end can be connected. The coupling surfaces should be advantageous the stackable housing parts run obliquely. This well-known connecting sleeve has the purpose of connecting the cores of the two to be connected to each other at the assembly point Connect cable lengths quickly and safely, even by unskilled workers can. The connection of the wires takes place between two separate terminations and not - as with the subject of the invention - within gas pressure-tight cast resin locking sleeve for multi-core electrical cables,

especially for under internal gas pressure

standing telecommunication cables

Applicant:

Siemens & Halske Aktiengesellschaft,

Berlin and Munich, Munich 2, Witteisbacherplatz 2

Fritz Mickoleit, Berlin-Spandau,

and Dipl.-Ing. Georg Werner, Berlin-Charlottenburg,

have been named as inventors

one and the same sleeve in a guide body. Apart from this, the known sleeve has the Cores connected to one another with their splice point not at right angles to the cable or sleeve axis, but laterally at the terminations placed one against the other. It should also be noted that the socket is not poured because this is for the intended purpose, namely to enable the connection to be released quickly, would contradict.

Furthermore, a junction sleeve for telecommunication cables has become known, in which the incoming and outgoing lines are led to opposite rows of solder lugs and the crossings between the soldering lugs. There is no direct connection or splice with this sleeve of cables running transversely to the cable or sleeve axis. This socket, which is intended for crossing purposes, is not poured either, because this would on the one hand coupling changes and on the other hand possibly a disruptive influence on the the spring contacts provided.

The invention is described below with reference to the exemplary embodiments shown in the drawing explained in more detail.

Fig. 1 shows a perspective view of a cast resin body produced according to the invention in socket form. It is assumed that two telecommunication cables with stranded groups of wires are to be connected to one another in a gastight manner by a cast resin sleeve. There are 10 and 11 the cable core and the cable sheath of the incoming cable and 10 '

i09 678/259

and 11 'the cable core and the cable jacket of the outgoing cable. According to the invention is between the Star fours 12 of the incoming and the star fours 12 'of the outgoing cable, the guide piece

13 arranged, which has a double-T-shaped cross-section, with the web between the incoming and outgoing star fours and incorporated into the flanges transverse guide channels 14 are. For the sake of clarity, the through-connection of wires 15 and 15 'is only one in the figure single star quad. It is shown that the twisting of the star quads until shortly before their Ouerführung is maintained, which is important to achieve small couplings. the The ends of the wires are stripped of the insulation and bunched together and soldered. The entanglement points, which are designated by 16, are in the guide channels 14 of the guide body inserted to prevent the bare wires from touching one another. Upon completion of all Core splice is the entire splice in a mold with a casting resin, so that the Cast resin body 17 is created. Since in this version on the one hand the incoming wires from the outgoing The wires are separated from each other by the guide piece and the bare wire connection points from each other are kept at a distance and embedded in cast resin, is a complete guarantee of gas pressure tightness Connection of cables given.

The guide body, which can assume a relatively great length for high-core cables, is advantageously composed of several similar partial bodies following one another in the longitudinal direction. The part bodies can have interlocking projections on their abutting end faces and wells, e.g. B. provided with pegs and holes, and optionally also with each other are glued in order to achieve a firm cohesion of the part-body. An embodiment of such a partial body is shown in FIG. 2 shown. According to this, the partial body 13 with the wire guide channels 14 on one end face the projection 18 and provided on the other end face with a recess adapted to this projection. In this way, the similarly designed partial bodies can be plugged into one another get connected. The partial bodies can be produced in a simple manner by injection molding or compression molding, and it is possible to form guide bodies of any length from the partial bodies of the same type.

Fig. 3 shows a further useful embodiment for a guide body with a double T-shape Cross-section. According to this, the guide body is at its flanges with parallel to the web projecting ribs 19 provided so that a free channel 21 is created between every two ribs, around the wires 15 and 15 'freed from the insulation at the ends at point 16 in a free position with one another to be able to splice. The lead-through holes 20 in the serve to guide the veins Side edges of the flanges and the guide channels

14 in the ribs 19. To facilitate manufacture, the guide body is made in two parts, both parts by gluing or other measures, e.g. B. by arrangement of projections and Depressions, such as pegs and bores, are connected to one another on the dividing surfaces can.

According to Fig. 4, in which the cross-sectional area in Area of the wire guide channels 14 is indicated, are located between the guide channels and on the Ends of the guide body special webs or transverse walls 22 to protect against wire contact to increase. Furthermore, the projections 23 are provided in the wire guide channels so that the Core splices 16 are exposed. This guide body can also be made in two parts, with a division across the web can be advantageous.

In the embodiment shown in FIG. 5, the incoming and the outgoing Cable assigned to separate plate-shaped guide bodies. This arrangement is similar to that shown Example can be used with advantage for cases in which the incoming and outgoing Cable can be inserted into the cast resin sleeve in a vertical position from the same end. The cable core and the cable jacket of the incoming and outgoing cables are in accordance with 1 with 10 and 11 or with 10 'and 11'. The cables are through the base plate 24, which is advantageous Made of brass or the like. Is passed through in a gas-tight manner. The incoming cable 10/11 is the Isolierstofrplatte 25 and the outgoing cable 10711 'associated with the insulating plate 25'. The two through Isolierstoffbolzen 26 firmly interconnected plates are with guide holes 27 and 27 'for Passing through the wires 15 and 15 'provided. The figure indicates the splicing of four veins. Thereafter the wires 15 and 15 'in the space formed between the two plates from the inside out through the guide holes 27 and 27 'and the bare wires in the area spliced together between the plates at the points 16 in a free position. After completion of the wire splices the hood 28 made of brass or the like shown in dashed lines over the splice. inverted, which is soldered tightly to the base plate 24. The hood has two openings 29 through the top which the space formed by the plate 24 and hood 28 is filled with a casting resin. The free lying splice points 16 are individually encapsulated with the casting resin, so that the gas-tight connection of the two cables is guaranteed.

The invention is not limited to the specified embodiments limited. In this way, the guide bodies can be given a different, appropriate shape. This also applies to the protrusions 18 and the associated recesses. The wire guide channels provided in the guide body 13 can also run obliquely to the axis of the guide body. The guide body can be made from an injectable thermoplastic material, from a synthetic resin molding material or from another Insulating material such as glass or porcelain exist.

Claims (13)

PATENT CLAIMS: 1. Gas pressure-tight cast resin locking sleeve for multi-core electrical cables, especially for under Telecommunication cables under internal gas pressure, in which the bare wires are inside the sleeve are enclosed by the casting resin, characterized in that the bare wires in one of the incoming and the guide body associated with the outgoing cable run transversely to the cable or sleeve axis. 2. Cast resin sleeve according to claim 1, characterized in that the guide body has the shape of a double T-piece, the web of which is between the incoming and outgoing cable and in its flanges transverse guide channels (14) for supporting the interconnected bare wires are incorporated. 3. Cast resin sleeve according to claim 2, characterized in that the guide body at its Flanges are provided with projecting ribs (19) running parallel to the web, so that A free channel (21) is created between every two ribs, around the bare wires in free To be able to splice together. 4. Cast resin sleeve according to claim 3, characterized in that in the side edges of the Flanges, feed-through holes (20) and guide channels (14) in the ribs (19) for guidance of the cores are provided. 5. Cast resin sleeve according to claim 2, characterized in that that between the wire guide channels (14) and at the ends of the guide body special webs or transverse walls (22) for Increased security against wire contact are provided. 6. Cast resin sleeve according to claim 5, characterized in that in the wire guide channels projections (23) are provided on both sides of the wire splice point, so that the wire splices lying free. 7. Cast resin sleeve according to claims 2 to 6, characterized in that the guide body composed of several parts of the same type following one another in the longitudinal direction is. 8. Cast resin sleeve according to claim 7, characterized in that the part bodies at their abutting one another End faces with interlocking projections (18) and these projections adapted wells are provided. 9. Cast resin sleeve according to claim 1, characterized in that the incoming and outgoing Cable separate, preferably plate-shaped guide bodies (25, 25 ') assigned for the wires are. 10. Cast resin sleeve according to claim 9, characterized in that the incoming and outgoing Cable introduced from the same end into the cast resin sleeve, which is preferably arranged in an upright position are and the guide plates assigned to the two cables in a parallel position to one another and with broad surfaces facing one another are arranged. 11. Cast resin sleeve according to claim 10 ', characterized in that the guide plates through Bolts (26) or the like. Are firmly connected to one another. 12. Cast resin sleeve according to claim 9, characterized in that the cable cores in the Space formed between the two guide plates from the inside through guide holes (27, 27 ') and the bare wires in the area between the two plates in free position are spliced together. 13. Cast resin sleeve according to claim 1 for telecommunication cables with twisted wire groups, characterized characterized that the twisting of the wire groups until shortly before the Ouerführung the bare Veins or vein splice points is maintained. Considered publications:
German patent specifications No. 761 226, 842 666. 1 sheet of drawings © 805 & 7 & / 259> 11.58,