DE824501C - Electric cable with rubber sheathing, the conductors of which are surrounded by colored insulating sleeves made of lead-stabilized plastic, especially polyvinyl chloride mixtures - Google Patents

Electric cable with rubber sheathing, the conductors of which are surrounded by colored insulating sleeves made of lead-stabilized plastic, especially polyvinyl chloride mixtures

Info

Publication number
DE824501C
DE824501C DEP51995A DEP0051995A DE824501C DE 824501 C DE824501 C DE 824501C DE P51995 A DEP51995 A DE P51995A DE P0051995 A DEP0051995 A DE P0051995A DE 824501 C DE824501 C DE 824501C
Authority
DE
Germany
Prior art keywords
sulfur
lead
conductors
surrounded
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEP51995A
Other languages
German (de)
Inventor
Dipl-Ing Walter Hyprath
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DEP51995A priority Critical patent/DE824501C/en
Application granted granted Critical
Publication of DE824501C publication Critical patent/DE824501C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Description

Die vorliegende Erfindung betrifft eine elektrische Mehrfachleitung, insbesondere sogenannte Stegleitungen mit Gummiummantelung, deren Leiter bzw. Adern mit farbigen Isolierhüllen aus bleistabilisierten Kunststoff-, insbesondere Polyvinylchlorid (PVC)-Mischungen umgeben sind.The present invention relates to a multiple electrical line, in particular so-called ribbon cables with rubber sheathing, their conductors or veins with colored insulating sleeves made of lead-stabilized plastic, especially polyvinyl chloride (PVC) mixtures are surrounded.

Eine deutliche farbige Unterscheidungsmöglichkeit der einzelnen Leiter bzw. Adern wird unbedingt auch aus Gründen der Unfallverhütung verlangt. Mehrfarbige, mit bleistabilisierten Kunststoff-, insbesondere PVC-Mischungen ergeben in Verbindung mit normalen schwefelhaltigen Gummimischungen bei höheren Temperaturen eine Bleisulfidbildung, welche die Färbung der Kunststoff-, insbesondere der PVC-Mfschungen zunichte macht, so daß die vorgeschriebene Aderkennzeichnung verlorengeht. Eine Stabilisierung mit Blei ist jedoch unbedingt erforderlich, da sonst bei höheren Temperaturen infolge Fehlens des Stabilisators ein Abspalten von Chlor aus der PVC-Mischung eintritt. Alle Ersatzstabilisatoren geben keine zufriedenstellenden Werte.A clear color differentiation of the individual conductors or veins is also required for accident prevention reasons. Multicolored, result in connection with lead-stabilized plastic, in particular PVC mixtures lead sulphide formation with normal sulphurous rubber compounds at higher temperatures, which destroys the coloring of the plastic, especially the PVC, mugs, so that the prescribed core identification is lost. A stabilization with However, lead is absolutely necessary, otherwise it will result in higher temperatures In the absence of a stabilizer, chlorine is split off from the PVC mixture. All substitute stabilizers do not give satisfactory values.

Durch die vorliegende Erfindung werden die obengenannten Nachteile dadurch vermieden, daß die Gummimantelmischung mit Vulkanisationsmitteln behandelt wird, die den Schwefel nur in einer chemisch gebundenen Form enthalten, so daB eine Bleisulfidbildung mit den farbigen Kunststoff-, insbesondere mit den PVC-Mischungen durch freien Schwefel ausgeschlossen ist. Die Gummiummantelung der Leitung wird nur mit sogenannten Vulkanisationsbeschleunigern, also ohne besonderen Schwefelzusatz, vulkanisiert. Beispielsweise wird eine Gummiummantelung verwandt, die keinen Zusatz von ungebundenem Schwefel aufweist und nur mit einem Vulkanisationsbeschleuniger von der Zusammensetzung (R2 N C S)2 X2, worin R = Alkyl, vorzugsweise die Zusammensetzung C H$ und X = vorzugsweise S oder ein schwefelhaltiges Radikal bedeutet, vulkanisiert. Der Vulkanisationsbeschleuniger wird der Gummimischung wie jeder andere Füllstoff zugesetzt. Vulkanisationsbeschleuniger dieser Art sind im Handel beispielsweise unter derBezeichnungThiuramdisulfid(CH3)2 (NC S), SZ erhältlich. In der Figur ist die Erfindung an dem Beispiel einer zweiadrigen Stegleitung erläutert. Der Leiter 3 ist mit einer farbigen PVC-Mischung 2 isoliert, wobei eine Gummiummantelung i vorgesehen ist. Für diese Gummiummantelung wird nun eine Gummimischung verwandt, die als Vulkanisationsmittel Thiuramdisulfid enthält, wobei der Prozentsatz des Thiuramdisulfids so bemessen ist, daß die Schwefelgruppen quantitativ zur Vulkanisation aufgebraucht werden, so daß eine Bleisulfidbildung in der farbigen Kunststoffhülle 2 durch freien Schwefel ausgeschlossen ist.The above-mentioned disadvantages are overcome by the present invention avoided by treating the rubber jacket mixture with vulcanizing agents which contain the sulfur only in a chemically bound form, so that a Lead sulfide formation with the colored plastic, especially with the PVC mixtures is excluded by free sulfur. The rubber sheath of the cable is only with so-called vulcanization accelerators, i.e. without special sulfur additives, vulcanized. For example, a rubber coating is used that does not have any additive of unbound sulfur and only with a vulcanization accelerator of the composition (R2 N C S) 2 X2, where R = alkyl, preferably the composition C H $ and X = preferably S or a sulfur-containing radical, vulcanized. The vulcanization accelerator is the rubber compound like any other filler added. Vulcanization accelerators of this type are commercially available, for example available under the name thiuram disulfide (CH3) 2 (NC S), SZ. In the figure is the invention explained using the example of a two-core ribbon cable. The head 3 is insulated with a colored PVC mixture 2, with a rubber sheathing i is provided. A rubber compound is now used for this rubber coating, which contains thiuram disulfide as a vulcanizing agent, the percentage of Thiuram disulfide is dimensioned so that the sulfur groups are quantitative for vulcanization are used up, so that lead sulfide formation in the colored plastic casing 2 is excluded by free sulfur.

Claims (4)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von elektrischen Leitungen, insbesondere Stegleitungen, deren Leiter bzw. Adern mit farbigen Isolierhüllen aus bleistabilisierten Kunststoff-, insbesondere PVC-Mischungen umgeben sind, dadurch gekennzeichnet, daß eine Gummimantelmischung verwendet wird, die nur mit solchen Vulkanisationsmitteln behandelt ist, die den Schwefel nur in einer die Kunststoffmischung nicht angreifenden Verbindung enthalten. PATENT CLAIMS: i. Process for the production of electrical lines, in particular ribbon cables, the conductors or veins of which are surrounded with colored insulating sleeves made of lead-stabilized plastic, in particular PVC mixtures, characterized in that a rubber sheath mixture is used which is only treated with vulcanizing agents that contain the sulfur only contained in a compound that does not attack the plastic mixture. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Gummimantelmischung nur mit sogenannten Vulkanisationsbeschleunigern, also ohne besonderen Schwefelzusatz, vulkanisiert wird. 2. The method according to claim i, characterized in that that the rubber jacket mixture only with so-called vulcanization accelerators, that is is vulcanized without the addition of sulfur. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß zur Vulkanisation nur Vulkanisationsbeschleuniger von der Zusammensetzung (R2 NC S)2 X, z. B. Thiuramdisulfid verwendet werden, worin R ein Alkyl, vorzugsweise CH, und X vorzugsweise S oder ein schwefelhaltiges Radikal bedeuten. 3. The method according to claim 2, characterized in that for vulcanization only vulcanization accelerators of the composition (R2 NC S) 2 X, z. B. Thiuram disulfide can be used, in which R is an alkyl, preferably CH, and X is preferably S or a sulfur-containing radical. 4. Verfahren nach Anspruch i bis 3, dadurch gekennzeichnet, daß Thiuramdisulfid in einem derartigen Prozentsatz verwendet wird, daß die Schwefelgruppen quantitativ zur Vulkanisation aufgebraucht werden, so daß eine Bleisulfidbildung in der farbigen Kunststoffumhüllung der Leiter durch freien Schwefel ausgeschlossen ist.4. The method according to claim i to 3, characterized in that Thiuram disulfide is used in such a percentage that the sulfur groups be used up quantitatively for vulcanization, so that lead sulfide formation Excluded in the colored plastic coating of the conductors by free sulfur is.
DEP51995A 1949-08-14 1949-08-14 Electric cable with rubber sheathing, the conductors of which are surrounded by colored insulating sleeves made of lead-stabilized plastic, especially polyvinyl chloride mixtures Expired DE824501C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP51995A DE824501C (en) 1949-08-14 1949-08-14 Electric cable with rubber sheathing, the conductors of which are surrounded by colored insulating sleeves made of lead-stabilized plastic, especially polyvinyl chloride mixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP51995A DE824501C (en) 1949-08-14 1949-08-14 Electric cable with rubber sheathing, the conductors of which are surrounded by colored insulating sleeves made of lead-stabilized plastic, especially polyvinyl chloride mixtures

Publications (1)

Publication Number Publication Date
DE824501C true DE824501C (en) 1951-12-13

Family

ID=7385490

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP51995A Expired DE824501C (en) 1949-08-14 1949-08-14 Electric cable with rubber sheathing, the conductors of which are surrounded by colored insulating sleeves made of lead-stabilized plastic, especially polyvinyl chloride mixtures

Country Status (1)

Country Link
DE (1) DE824501C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020073B (en) * 1952-08-08 1957-11-28 Kdg Kabel Und Draht G M B H Process for the production of flat electrical cables

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020073B (en) * 1952-08-08 1957-11-28 Kdg Kabel Und Draht G M B H Process for the production of flat electrical cables

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