DE1721776U - FLEXIBLE MULTI-WIRE RUBBER-INSULATED LOW-VOLTAGE HIGH-VOLTAGE CABLE FOR MINING OPERATIONS WITH CONDUCTIVE RUBBER LAYERS AS A MONITORING LADDER. - Google Patents

Description

management for mining companies with

SIEMENS

SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT

Berlin and Erlangen
Patent department

BERUN-SIEMEKSTADT

55/0296

Flexible multi-core rubber insulated to the voltage s power line for mine operators with conductive rubber layers serving as supervisors.

The rise in price concerns flexible guiniai-insulated high-voltage power lines, which are used in particular as movable connection lines for supplying machines used in mining operations, such as cutting machines, as well as in conveyor systems. Such lines contain, in addition to the main cores, an earth core and a special monitoring conductor serving to connect alternating devices. A known advantageous embodiment consists in producing the monitoring conductor from conductive rubber or from some other insulating material made conductive and embedding both the main cores and the earth core in conductive rubber, the conductive rubber enveloping the cores either individually or together. To increase the longitudinal conductivity, the conductive graphical layers are expediently continuously brought into conductive connection with additional longitudinal conductive organs.

- 1 - G-a / Mi / li.

Due to the rise in prices, lines of the type mentioned are in their Dimensions reduced and cheaper to build.

According to the innovation, flexible multi-core rubber-insulated low-voltage power lines for mining operations with conductive rubber layers serving as monitoring conductors, in which additional longitudinal guide elements are embedded, the three main veins individually encased with conductive rubber and the earth vein divided into several insulated rope conductors, which are next to the monitoring longitudinal guide elements are arranged in the spandrels ... Furthermore, the so formed cable core one after the other with a common insulating layer, an outer shield and a protective sheath made of one electrically insulating and mechanically resistant or abrasion-resistant rubber-like material. '

In the drawing, two embodiments of the innovation are shown. The line according to FIG. 1 contains three main cores, which are individually made up of the conductor 10, the rubber insulation 11 and the Conductive rubber layer 12 exist. In the three outer gusset spaces there are two insulated splitter cores consisting of the conductor 13 and the rubber insulation 14, and also the conductive rubber sheathed Conductor 15 'which are twisted together and covered with a common conductive rubber layer 16. The conductive rubber covered monitoring ladder 15, which are used to connect the monitoring devices, are above the conductive rubber sleeve 16 with the conductive rubber layers 12 of the main wheels continuously in conductive connection. Over the cable core constructed in this way are the closed ones one after the other Rubber insulating layer 17, the screen 18 and the outer protective jacket 19 made of a plastic based on polyvinyl chloride or .. arranged from polymerized emChlorbutadiene. Of the Screen J8 consists of an open braid of wires or Wire strands 20 embedded in conductive rubber 21. To achieve For greater flexibility, the wires or wire strands 20 can also be knitted with one another.

In the embodiment according to figure 2, the three are with lead gunini enveloped Hauptodern around one consisting of Leitgusmi Profile core 22 stranded. Furthermore, this version differs

21c, 3/12. 1721776. Siemens-Schuckert-Un * ^A _| ^ktk _R ⁿ .S ^{escl! s} ^ fi. Berlin and Er-,? ! B'egsame multicore ^., Mmi. .sol.erte low-voltage strong siomfeltun? for mining operations with as transfer _TrT s, e ^ r ^ dlL ^

PA 9/820/2292

Formation of the Pigur 1 in that the isolated parts of the earth are covered with a conductive layer 23 and that the outer screen 18 consists of an inner conductive textile tape wrapping 24, a line of wires 25 and Another closed conductive 2 textile tape winding 26 consists. Instead of wires 25 and wire strands may apply. , ■■ - '.

5 claims

Claims (1)

21c, 3/12. 1 721 776. Siemens-Schuckcrtwerkc Aktiengesellschaft. Berlin and Erlangen. I Flexible multicore rubber-η ma> isolated Nicderspannungs-Starkstromlei- ^Elder * ^lh: tung for mining operations with serving as Überwachungsicitcr Lcitgummischichten. 7.9.55. S 18 006. (T. 4; line 1) Protection claims: f * «■ '' ■ ■ ; - 1. Flexible, multi-core, rubber-insulated low-voltage power line for mining companies · with as chief supervisor Serving conductive rubber layers, in the additional longitudinal lateral genes are embedded, characterized in that the three main veins are individually wrapped in rubber (12) and the veins in flour rere, preferably two, isolated sub-conductors (13/14) is divided, which in addition to the Übexwachungslängsieitorganen (15/16) in the | "| Zv / ickel spaces are arranged, 'whereby the so formed outer soul ■ | in the '-. row with a common rubber-like insulating layer , f (17), an outer screen (J8) and an outer protective jacket (19) ; f from an electrically insulating and mechanically v / resistancej! capable or abrasion-resistant rubber-like material, preferably made of f a plastic based on polyvinyl chloride or polymerized Chlorobutadiene or the like. Is coated. j '2. Power line according to claim 1, characterized in that r; that the main veins, which are covered with conductive rubber, are | ^{f with the} existing profile core (22) are stranded. ί, - ■■■■■. ■ · ι * 3. Power line according to claim 1, characterized in that that the isolated Srdteilleiter (13/14) with a conductive rubber layer (23) are provided 4. Power line according to claim 1, characterized in that that the outer screen (JJ3) is made of intertwined or entangled There are wires or wire strands (20) embedded in conductive rubber (21). 5. Power line according to claim 1, characterized in that the outer shield (Jj3) consists of an inner conductive textile tape winding (24), a length of wires wound with the shortest possible pitch and in open V / indungen or conductive textile tape winding (26) .