DE6913011U - ISOLATING AND SWITCHING BAR FOR DISTRIBUTION SYSTEMS - Google Patents

Description

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"" MARCH 31, 1969

SIEMENS AKTIENGESELLSCHAFT München 2, the Berlin and Munich Wittclsbacherplatz

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69/2276

! • Racing and switching lcioto for distribution systems

The innovation refers to the region of an accessible from the front side plug opening auftronnbarcn contact springs, on a separating and S _c haltleisto for Vertoilcranlagen with their Anschlussendcn on one side of the floor opening to connect the ankönnenden wires and on the other side of the floor opening for the Connection of the outgoing wires protrude from the front, which wires are guided to the rear in wire guide elements, as well as with earth contact elements electrically connected to the contact springs for the incoming wires for the plug-in connection of surge arresters ^ for telecommunication systems, especially Pernsprochanlagen.

There are isolating and switching cistons for distribution systems known where the connection elements for the incoming sov / ie for the outgoing wires in the form of Pins on both sides of a connector opening for separation or Test plugs are arranged. The connected Wires are grounded in open wire guide elements that are arranged to the side of the bar and are led away to the rear To protect the electrical devices connected downstream of the isolating and switching strip from suddenly occurring overvoltages z.3. as a result of lightning strikes, e.g. the wires arriving from the telephone exchange and / or. the contact springs of the strip to be contacted with these wires via so-called surge arresters, thus connectable to earth via fuses. These surge arresters are made in a known manner stickbaron Einheiton, of which each unit has several

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Contains fuse eleraento for several incoming wires. Since the operability of this safety element has to be constantly checked, it is necessary these surge arresters on a tunnel represent separating and switch boxes to be arranged where they are easily visible.

The goal of the innovation is to design a disconnection and switching strip in such a way that it is attached to it Surge arresters can be easily checked at any time and replaced if necessary.

The nouerungsgeraaß solution provides that an earth rail is provided on the side of the front connector openings, v / o lohe guide slots for the front soitig have pluggable surge arresters connected to the contact springs for the incoming holes, so the surge arresters are free and unobstructed on cL _{or the} front side of the bar, v / o they can be viewed at any time and, if necessary, exchanged «, The space-saving grounding rail on the side of the connector openings, along with the guide slots, offers the individual surge arresters a secure hold.

In front of a v / eitoron design of the innovation protrude the Erdkontakteloisente in an area between the Connection ends for the incoming wires and the connector openings out of the strip on the front. The surge arresters can therefore remain stuck even if retooling work has to be carried out on the bar, so that permanent overvoltage protection is guaranteed.

The building brokerage of the nouer according to separation and switching loisto can be reduced by the fact that one

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Further development of the innovation, the exposed ones on the front Connection ends for the incoming wires themselves are used for the plug-in connection of the surge arrester.

Further, advantageous details of the innovation are based on the Ausführungsbobeispielc shown in the drawing described below.

It means:

Fig. 1 is a perspective view of a neurosurgery Trenn- and Schaltloistc with an attached Surge arresters,

Fig. 2 is a sheared sectional view of the separating and switching strip according to Fig. 1,

Fig. 5 is a perspective view of a separating and switching strip of another embodiment,

4 shows a sectional view of the isolating and switching strip gecüss Fig. 3 analogous to the sectional view according to Fig. 2.

The separating and switching bar according to FIG. 1 consists of a large number of flat supports 1 which are stacked on top of one another and which are provided with a shoulder 2 on their front side facing the viewer. _{Plug openings 5 S} are located in these approaches 2 in which test or isolating plugs known per se can be plugged in. On one side of the connector openings 3, front connection ends 4 for wires 5 arriving at the bar protrude, while connecting ends 6 for outgoing wires 7 are located on the other side of the connector opening 3. The position of the contact springs, to which the connection ends 4 and 6 belong, is shown in FIG.

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ί-: borrowed from below. With 8 the contact springs for

ί the incoming wires 5 and with 9 the contact springs

for the outgoing wires 7 designated. These contact springs 8 and 9 meet in the area of the plug openings 3 and can also be separated there and tapped individually. Earth contact elements 10 extend from the contact springs and are in one area between the connection ends 4 for the incoming wires and the connector openings 3 from the front of the bar protrude and there plug connections for a large number of surge arresters 11 that can be plugged on top of one another (see also Fig. 1) form. As FIGS. 1 and 2 show, a grounding rail 12 is arranged to the side of the extension 2, which in turn is above and below with flat legs protruding at right angles e.g.

13 is provided, v / elche legs the one on top of the other delimitation plates comprising layered carrier 1

form. These legs can in turn with a stud construction keep in touch. The grounding rail 12 is provided with guide slots 13, in Cups the surge arresters provided with corresponding noses are guided and secured against tilting. Good contact between surge arresters 11 and grounding bar 12 are ensured by springs, which are resilient on the grounding bar 12 issue.

On the side of each individual carrier are open wire guides elements 15 arranged in which the incoming

Wires 5 and the outgoing wires 7 are led away to the rear. From connector ends 4 and 6 up to the wire guide element EN 15 run oblique guide grooves 16, in which the functionally related Drühte, e.g. 3. the a and b wires of the subscriber lines can be routed separately

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In contrast to the sales report Figures 1 and 2 are shown in the embodiment just the figures 3 and 4 the connection endon 17 for the push-in fittings 18 themselves as a plug-in connection for the surge arrester 19 exploited.

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4 claims for protection

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Claims (3)

1. Separating and switching loisto for prescaler systems with in the area of one accessible from the front Plug opening can be separated by contact springs, the connection ends of which are on one side of the plug opening for connecting the incoming wires and on the other side of the connector opening for the Connection of the outgoing wires protrude on the front, which wires in wire guide elements after are guided, so / ie with, electrically connected to the contact springs for the incoming wires Earth contact elements for the plug connection of surge arresters, for Pernmelde-, in particular Perη intercoms, characterized that a laterally of the front connector openings (3) arranged earthing rail (12) is provided, which guide slots (13) for the front with the contact springs (8) for the incoming wires (5) connected base contact elements have plug-on surge arresters (11 or 19). 2. Separating and switching box according to claim 1, d;: a, characterized in that the ground contact elements (10) protrude from the bar in an area between the connection ends (4) for the incoming wires and the connector openings (3). y 3. Separating and switching strip according to claim 1, characterized in that the front exposed connection ends (17) for the incoming Wires (18) themselves are used for the plug-in connection of the surge arrester (19). PA 9/420/5181 - 7 - Isolating and switching box according to the preceding claims, consisting of a large number of jotcr, flat supports for the contact springs, characterized in that the earth rail (12) running in the direction of the layers is given away at right angles with flat legs (13) protruding at right angles which limbs form the limiting plates that surround the stacked carriers (eg 1). ^