DE6914268U - POWERFUL CABLE CONNECTION - Google Patents

Description

Power cable connection

The pressing technology, which is also successful in the connection of power cables is used, allows particularly small connector dimensions. At the proposed Innovations are used for the purpose of further reducing the size and cost of the connection points, sleeves made of shrink tubing.

In Fig. 1 is a partial longitudinal section through a cable 1 as an example Four-wire design shown by a Kabel22 of the same design and size

is extended. Mean thereby l _o, I _1, L ^{_2> 1 and} S ^{the Null pus} "*" * ^{Ver the} "sorgungsadern of the cable 1, and 2,2,2 and 2 denote the corresponding

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the wires of the cable 2. From Fig. 1 it can be seen that «for example the wires 1. and 2 _O are connected to one another in an electrically conductive manner by a pressed-on connector sleeve 3, as are the wires 1 _q and 2 _q by means of the sleeve

3 etc. Via the connector 3, the insulation of the wires ο &

l _o and 2 _n overlapping, a shrink tube 4 pushed and xest shrunk.

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See also the cross sections of Fig. 2 (section AA) and Fig. 3 (section BB)

Shrink tubing of this type are made of polymers such as polyvinyl chloride or Neoprene rubber. Using a special process, the molecules these plastics on the way of electron irradiation into a three-dimensional Haschenwerk are networked, making them infusible, but remain elastic above the crystal melting point and through heating can be stretched to about twice its size. In this quasi-frozen state, they are delivered and also assembled. By heat treatment after assembly, they resume their original size and so "shrink" firmly onto their base.

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The shrink tubes 4,4,4 and 4 therefore ensure that the metal

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Lish connector sleeves 3, 3 _i , 3_ and 3. in addition to the pre-

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bindings absolutely tight against the ingress of moisture or against the The leakage of oil or cable ground must be shielded.

Over the entire connection is a shrink tube 5, which is again on both sides the insulation of cables 1 and 2 covered, shrunk. Here can a plastic body 6 star-shaped cross-section are inserted, which in the shrink tubing connections 4, 4, 4 and 4 in its recesses.

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takes and the overall sleeve 5 after shrinking an approximately circular Cross-section gives. It is, however, also conceivable, the spaces between to fill the cable cores beforehand with a plastic, non-hardening layer, which opposes the shrinking movement of the tube 5 with elastic resistance and enforces an approximately circular cross-section in the area of the middle part of the socket.

For the assembly, the cable 1 must be stripped so far that, for example, the shrink tubing 4_ on the core 1 _{Q can be moved} far enough to the outside to set the connector sleeve 3 undisturbed. Likewise, the cable 1 must be exposed far enough so that the shrink tubing 5 can be threaded onto the cable 1 before the connections 3, 3, etc. are set. Longitudinally slotted shrink tubing 4 and 5 are also conceivable, which are pushed laterally over the cables after the connections have been set, but this would require additional effort through special locking parts.

Claims (1)

ill lit I I I I I I I Protection claims 1. Power cable connection, the cable cores of which are in phase via metallic Sleeves connected to one another in an electrically conductive manner by means of pressing and those of one are the connection against the ingress of moisture and the leakage of oil and cable mass shielding sleeve surrounded is, characterized in that the connecting sleeves (3) cover the insulation of the Kabeladexn (1, etc., 2, etc.) from both sides Shrink tubing (4) are surrounded and the entire connection point is covered by a shrink tubing (5) covering the insulation of the cables (1, 2) is surrounded / ' 2. A compound according to claim 1, characterized in that to support the Wire connections a body made of plastic (6) is inserted into the connection / 8. A compound according to claim I _1, characterized in that the cavities within the connection are filled with a plastic, non-hardening Hasse before the outer tube (5) is shrunk on.