DE7142975U - Device for the electrical connection of cables - Google Patents

Description

JETOONT - TAILOR

5> Place de Rio-de-Janeiro

75 par 8 8e / France

Unaer symbol: J 55βχ

Device for the electrical connection of cables

The invention relates to a device for the electrical connection of cables, in particular of insulated low voltage cables. It is known that the connection of a subscriber to the electrical distribution network quickly, easily and without interruption for the other subscribers of the network.

More or less perfect solutions have been worked out which allow the connection of a connecting cable SJi enable a main cable without cutting the conductors of that cable or removing their insulation. One is so too bulky and easy to take Voltage to be set device arrives. However, the models currently available are for only one type of cable and can even only be used for a single cross-section. A large number of connection devices must therefore be kept in stock to meet the needs of a network satisfy, in which as a result of the development of cable

technology and the numerous cable cross-sections, several cable models are available at the same time. One of the main causes of these differences is the design of the neutral conductor, which can either lie on the circumference or be united with the phases, have a cross-section which is the same as or smaller than that of the phases, and can be round or sector-shaped. Ausseraem know neve connections to old cables make his whose characteristic majors are not known (eg connection of new subscribers, reinforcing connections, replacement of an air line through an underground pipe). Finally, with a given cable model and a given cable cross-section, non-negligible fluctuations in dimensions can be determined, which can have repercussions on the reliability of the connection devices as a result of drilling through the insulation, especially if this drilling cannot be checked.

The device according to the invention is intended to do this Eliminate disadvantages, since it can be used for cables of different parameters.

It enables the electrical "mschlucs

a connection cable to an insulated main cable, on which only the protective and union parts at the connection point removed.

This device contains:

- two parallel clamps, which through

articulated and braced together rigid segments are formed, which the main cable at the connection point surround ;

- a connector for each conductor of the main cable, which is located between the two clamps and can slide on these in order to be brought towards the conductor, this part being a radial cylindrical threaded bore has, in which a metallic screw is displaceable, the end of which facing the cable has a Preser forms or actuates a metal part, which is provided with teeth, which the insulation of the conductor at Tighten this screw can pierce;

~ Means that the

electrical connection between the conductor of the main cable and make the appropriate conductor of the connection cable;

- Funds for e. tric isolation of the different metal parts from each other.

In a first variant embodiment of the invention, the connecting part has a second, to the first hole transverse hole in which the bare Conductor of the connection cable is introduced, which is through a second screw is pressed against the head of the first metallic screw.

The various metal parts are electrically isolated from one another either by means of insulating Clamps or by means of insulating connecting parts. In the latter case, the crew connection hole can be made by means of a metal pipe be made, which is provided with internal thread and fixed in the insulating connector.

The invention is explained below with reference to the drawing by way of example.

Fig. 1 is a plan view of the at an im Section shown cable attached device.

Pig. Figure 2 is a partial side view of the same device.

Pig. Figure 3 shows a connector in section along line A-A of the Pig. 2.

The example chosen relates to a three-phase main cable for low voltage with three sector-shaped phase conductors 1, 2, 3, the insulation of which is shown at 1 ¹ D and 2 ^f or 3 ', and an uninsulated neutral conductor 4 (Pig. 1). xn dxGser Pigur, the main cable is shown cut to make the drawing easier to understand, but in reality it is not cut through, but only freed from its protective and connection parts at the point of the connection to be made. Furthermore, insulating separators 20 are used between the various conductors 2, 3 and 4.

Four rigid semicircular segments 5, 6, 5 'and 6 ¹ (Pig. 2) are united by bolts 7 and 8 * and braced by hoops 9. They form two of the main cable

7142i75-i.ii.73

running parallel bells.- '

"Identical parts 10, 11, 12, 13, called end parts, the number of which is equal to the number of conductors of the main cable, are inserted between the pads, long which s-.f., e can slide * As shown in Fig. 3, which one Section langü the line Ä-A of the Pig. 2, the Anaeblusstsil 1Q has lateral natta »in weles © 4i © segment ?; g, B, 6 and 6 ', intervene. Each connection part is provided with two cylindrical transverse bores, which are perpendicular to one another and open into one another.

In the first, threaded hole 4, two screws 15 and 16 are arranged.

The second, unthreaded hole 17 receives the conductor 18 of the connecting cable to be connected.

The axis of the bore 14 points radially to the axis of the main cable, and the connection part is offset on the clamps so that it comes opposite a conductor 2 of the cable.

The screw 15 i & * netaliisch, UNOE their end which lies on the side of the conductor 2 and comes with this is in contact with verschen AEM e ^ router 19, wherein the insulation 2 can pierce the conductor *. After tightening a screw 15, the conductor 18 is inserted through the bore 17, which is provided for the largest conductor cross-section of the connecting cable to be connected. The conductor 18 is firmly drawn through the second screw 16 on the ^s chraube 15th

When making a contact on an uninsulated conductor, as in the example chosen for If the neutral conductor 4 is the case, the screw 15 can be replaced by a screw without a milling cutter, e.g. a flat screw End, as is the case with screw 16 of the pail.

To ensure the isolation of the various screws 15 from one another, the clamps can be made from made of insulating material, or the segments of the clamps can be covered with insulating sleeves, or the parts 10 can be made of insulating material. In this last

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_ 5 -

teren Pall can, instead of the thread of the bore 14 directly to form in the connection part 10, in the insulating material at the location of the hole -14 provided with an internal thread Metal pipe to be embedded.

The attachment of the connection device according to the invention can, under tension, easily, quickly and be done safely. Since the position of all parts is adjustable, such a device is available for low-voltage cables different parameters can be used.

7142S75-MU *

Claims (4)

- 6 final sayings 1.) Door direction for the electrical connection of a connection cable to an insulated main ski, from which only the protective and connection parts have been removed at the point of connection, for cables with different parameters, characterized by two parallel clamps, which are hinged and braced together Segments (5,. 5 ',. 6 »6 ¹ ) are formed, which the main cable to. Surrounding the connection point, for each conductor (1, 2, 3, 4) of the main cable a connection part {10), which is inserted between the two clamps and can slide on these so that it can be brought across from the conductor, where ' This part has a cylindrical radial threaded bore 14 in which a metal screw (15) can be displaced, the end of which (19) facing the cable forms a preseeding device or actuates a metal part which is provided with teeth that protect the insulation (1 ¹ , 2 ^f , 3 ') of the conductor be ^ ffl tightening the screw can pierce, means which at the end part the electrical connection between the conductor of the Ha ,. pt kabeis and the corresponding head of the. Produce connection cable (18), »and a gown for the electrical insulation of the various metal parts from one another. 2.) Device according to claim 1, characterized in that for establishing the electrical connection between the conductor <? 3S main cable and the corresponding conductor of the connection cable of the connection part (10) a second "bore (17), which lies transversely to the first bore (14), wherein the block conductor (18) of the connecting cable is inserted into this second hole (17) and tightened in this * 3.) Device according to claim 1 or 2, characterized in that for electrical insulation of the different metal parts from each other, each connection part (10) is made of insulating material. 4.) Device according to claim 3, characterized in that the threaded bore (14) by means of a with Internally threaded, fixed in the insulating connector is made of metal pipe.