DE1722267U - REINFORCED MULTI-WIRE HIGH-VOLTAGE CABLE WITH PLASTIC-INSULATED STRANDED LADDER. - Google Patents

Description

- 7/01 1722 267 Siemcns-Sdiudtcrtwcr'ke Corporation. Berlin and Er- j 7 long. | Reinforced multi-core high wire cable with synthetic material Liter ladders. 5. 9. 55. S ISCOO. (T. 5;

SIEMENS

SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT Berlin and Erlangan

BERUN-SieMEWSSTADT

"* S [P ₁

55/0298

Reinforced multi-core high-voltage cable with plastic

insulated stranded conductors.

The innovation also affects reinforced multi-core high-voltage cables plastic-insulated stranded conductors, especially for voltages, for 10 kV and above. As core insulation come primarily Plastics based on polyvinyl chloride and polyethylene in question.

It is the task of the innovation, such cables for the highest possible To make voltages suitable, using the simplest possible structure and the most economical manufacturing processes possible. .

According to the innovation, in an armored multi-core high-voltage cable with plastic-insulated stranded conductors, a conductive layer and on the other hand over the twisted together A conductive layer filling the interstices is arranged on the veins, the conductive layers lying over the veins

- 1 - Ga / Wed

21c, 7/01. 1722 267. Siemcni-Schuckcrtwerkc Aktiengesellschaft, Berlin and Er- « η ^, ■, _Q cg long. | Reinforced multi-core high ''' ^lnI '" ^JU Spannun ^ skabcl with plastic-insulated lit-cnlcftcm. 5.9.55. SlSOOO. (T. 5;

conductively connects with the metallic honor.

The conductive layer that fills the interstices is advantageous a mixture of a non-vulcanizable one. Plastic, such as polyisobutylene, with a carbon black and / or graphite addition ^ used. To protect against mechanical damage by the metallic reinforcement is expediently also a single or multi-layer protective layer made of conductive over the conductive layer made textile tapes applied.

The conductive layer arranged over the stranded conductor and, if applicable The core insulation is also expediently designed and applied in such a way that it clears the outer gaps in the stranded conductor fill in completely or at least in part. An advantageous embodiment for the one resting on the stranded conductor The conductive layer consists in placing a layer of a flexible copolymer on the stranded conductor of vinyl chloride with methyl acrylate, which is made highly conductive with graphite and has a relatively low softening point has to be sprayed on, with which the core plastic insulation, sprayed on at a significantly higher temperature, can be3 plasticized polyvinyl chloride intimately connects. But it is also possible to put a conductive textile tape around the stranded conductor, e.g. Graphite tape, to be wrapped in the outer gaps of the stranded conductor while the core insulation is being sprayed on depresses.

The conductive layer overlying the core insulation can be made of textile tapes that have been made conductive, e.g. graphite tapes, are formed. An expedient embodiment also consists in the core insulation with a closed, with the To cover the surface of the insulation intimately connected conductive layer made of graphite, carbon black or the like.

In the drawing is the. Structure of a high voltage cable according to of the innovation.

21c 7701. 1722 267. Siemens-Sdiuckcrtwcrkc Aktiengesellschaft, Berlin and Er- . 7 ^ ■ long | Reinforced multi-core high voltage cable with plastic-insulated lit.kitern. 5.9.55. S 1S0OO. (T. 5;

PA 55/0298 GM ■, \

Each wire of the three-wire high-voltage cable consists of the stranded conductor 10, the conductive layer 11, the plastic insulation · ' tion 12 and the conductive layer 13. The three wires are stranded around the conductive insert 14 and overmolded with the conductive layer 15, which also fills the gusset. The leading contribution 14 and the layer 15 advantageously consist of a conductive, non-vulcanized plastic. Above this layer are the protective layer 16 made of conductive textile tapes and the stranded flat wire reinforcement 17 arranged. Above this, one or more layers 18 made of impregnated fibrous materials follow as external protection and an insulating and mechanically resistant plastic jacket 19. The core insulation 12 and the outer protective jacket 19 are advantageously made of a plastic based on polyvinyl chloride.

The innovation is not limited to the forms and embodiments shown the specified execution options are limited. For example Instead of the metallic flat wire reinforcement 17, a strip or round wire reinforcement known per se can also be used.

1st figure
10 claims

Claims (10)

21c, T / 01. 1722 267. Siemcns-Schuckcrtwerke Aktiengesellschaft. Berlin and Er- ■. y ^ long. \ Reinforced multi-core high-voltage cable with plastic insulation I it; cnlcftcrn. 5.9.55. S ISOOO. (T. 5; ζ. Υ Protection claims: tfrb /6179*"Sl9.S5 1. Reinforced multi-core high-voltage cable with plastic-insulated Stranded conductors, in particular with plastic insulation based on polyvinyl chloride or polyethylene, thereby characterized in that on the one hand a conductive layer and over the individual stranded conductors as well as over the insulation on the other hand, a conductive layer filling the interstices is arranged over the wires twisted with one another, which conductively connects the conductive layers above the wires with the metallic reinforcement. 2. High-voltage cable according to claim 1, characterized in that the conductive layer filling the interstices consists of a Mixture of a non-vulcanizable plastic, such as polyisobutylene, with a carbon black and / or graphite additive. 3. high-voltage cable according to claim 1, characterized in that that between the conductive layer filling the interstices and the metallic reinforcement a single- or multi-layered eye-skin layer is arranged from conductive made textile tapes. 4. High-voltage cable according to claim 1, characterized in that the conductive arranged over the individual stranded conductors Layer and possibly also the core insulation the outer Fill in the gaps in the stranded conductor completely or at least partially. 5. High-voltage cable according to claim 4, characterized in that that on the stranded conductor a plastic mixture made conductive is sprayed on with a low softening point, which is intimately connected to the core plastic insulation sprayed on. 6. High voltage cable according to claim 5, characterized in that that the conductive plastic mixture consists of a copolymer of vinyl chloride with methyl acrylate, with graphite or the like. Made highly conductive exists. 7. - 4 - 21c, 7/01. 1722 267. Siemcns-Schuckertwerkc Aktiengesellschaft, Berlin and Er- < -j ^ ₁ Längen. | Reinforced multi-core high-voltage ur.cable with plastic-insulated litzcnlcitwn. 5.9.51 SlSOOO. (T. 5; Line 1) ιλ λ; / vcjo um - "--- ■ - 7. High voltage cable according to claim 4, characterized in that that around the stranded conductor a made conductive, in the outer ' gaps of the stranded conductor pressed textile tape, for example graphite tape, is wound. 8. High-voltage cable according to claim 1, characterized in that the conductive layer lying over the core insulation through Coiled conductively smoked textile tapes, e.g. graphite tapes, is formed. . 9. High-voltage cable according to claim 1, characterized in that that the core insulation ^ icit a closed, with the core innip · V
insulation / connected conductive layer made of graphite, carbon black or is covered. ' 10. High-voltage cable according to claim 1, characterized in that that over the metallic reinforcement - preferably with the interposition of separate layers of fiber material - an insulating and mechanically resistant plastic jacket, preferably based on polyvinyl chloride, is arranged.