DE2715490A1 - Multicore electrical cable with inner transversely fluted polyethylene - and PVC outer mantle; has relatively higher tensile strength - Google Patents

Multicore electrical cable with inner transversely fluted polyethylene - and PVC outer mantle; has relatively higher tensile strength

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Publication number
DE2715490A1
DE2715490A1 DE19772715490 DE2715490A DE2715490A1 DE 2715490 A1 DE2715490 A1 DE 2715490A1 DE 19772715490 DE19772715490 DE 19772715490 DE 2715490 A DE2715490 A DE 2715490A DE 2715490 A1 DE2715490 A1 DE 2715490A1
Authority
DE
Germany
Prior art keywords
mantle
tensile strength
electrical cable
pvc
relatively higher
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.)
Withdrawn
Application number
DE19772715490
Other languages
German (de)
Inventor
Alfred Jordan
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19772715490 priority Critical patent/DE2715490A1/en
Publication of DE2715490A1 publication Critical patent/DE2715490A1/en
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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
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring

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  • Insulated Conductors (AREA)

Abstract

A multicore cable consisting of a number of individually isolated conductors, has an inner mantle of a low pressure polyethylene copolymer in which there are transverse grooves. The space between the inner mantle and the insulated conductors is filled with a PVC/butyl mixture, and the inner mantle is enclosed by a smooth, plain outer mantle of PVC. Due to the considerably increased tensile strength of the cable, as compared with cables having the same conductor cross-section, but different synthetic materials in the mantle, it can be used for branch lines coming down from a tall pylon over a long unsupported span, to a building. It can be used with safety in wet rooms.

Description

Verwendung einer mehradrigen elektrischenUse of a multi-core electrical

Leitung Gegenstand der Patentanmeldung P 25 15 025.8 ist eine mehradrige elektrische Leitung mit einem quergerillten inneren Mantel aus Polyäthylen, der die isolierten Adern umschließt, wobei der Raum zwischen den Aderisolierungen und dem gerillten inneren Mantel durch einen Isolierstoff gefüllt ist, und mit einem äußeren Mantel aus Polyvinylchlorid, der dan quergerillten inneren Mantel umgibt und außen glatt und blan@ ist.management Subject of patent application P 25 15 025.8 is a multi-core electrical cable with a cross-grooved inner jacket Polyethylene, which encloses the insulated wires, whereby the space between the wire insulation and the grooved inner jacket is filled with an insulating material, and with a outer jacket made of polyvinyl chloride, which surrounds the inner jacket with a cross-grooved inner jacket and is smooth and blan @ on the outside.

Überraschenderweise hat sich ergeben, daß die Zugfestigkeit dieser Leitung wesentlich größer ist als diejenige der bekannten mehradigen elektrischen Leitungen mit demselben Leiterquerschnitt aber mit anderen Kunststoffmänteln, die nicht gerillt sind.Surprisingly, it has been found that the tensile strength of this Line is much larger than that of the known multi-wire electrical Lines with the same cross-section but with different plastic sheaths that are not grooved.

Diese hohe Zugfestigkeit ermöglicht nun die Verwendung der den Gegenstand des Hauptpatentes bildenden Leitung als Abspannleitung.This high tensile strength now enables the use of the item of the main patent forming line as a guy line.

Solche Abspannleitungen weden als Freileitungen in der Weise verlegt, daß sie an ihren Enden von Abspannklemmen gehalten werden und daher unter ihrem Gewicht einer starken Zugspannung unterliegen, was auch dann gilt, wenn die Freileitung zwischen ihren Enden an entfernt voneinander liegenden Stellen abgestützt wird.Such guy lines are laid as overhead lines in such a way that that they are held by tension clamps at their ends and therefore below hers Weight are subject to strong tensile stress, which also applies if the overhead line is supported between its ends at remote locations.

Bei diesser Verwendung der den Gegenstand des Hauptpatentes bildenden Leitung ist die vorteilhafte Möglichkeit geboten, die als Freileitung zwischen einem Mast und einem Gebä@@e abgespannte Leitung in dieses Gebäude hineinzuführen und dort als Feuchtraumleitung zu verlegen. Es entfällt daher die Notwendigkeit, die Abspannleitung am Gebäude endigen zu lassen und ihre Adern dort an die innerhalb des Gebäudes verlegten Leitungen anzuschließen, ei einem bevorzugten Ausführungsbeispiel der Erfindung gelangt eine der Patentanmeldung P 25 15 025.8 entsprechend ausgestailtetX elektrische Leitung zur Verwendung, die folgenden Aufbau haut: Die Aderisolation besteht aus dem Thermoplast PVC nach dem VI)E-Mischungstyp YJ 1. Diese Mischung besitzt folgende Kenndaten: Zuläassige Betriebstemperatur höchstens 700C, Zugfestigkeit #@ = 125 kp/cm2, Bruchdehnung = 125 % gleichspannungsbeständig, spez. Durchgangswiderstand bei 700C = 10#.With this use of the subject matter of the main patent Line is the advantageous option that as an overhead line between one Mast and a building to be laid there as a damp-proof line. There is therefore no need to the The guy line to end at the building and its veins there to the inside to connect cables laid in the building, in a preferred embodiment the invention is one of the patent application P 25 15 025.8 accordingly designed electrical line for use, the following structure skin: The core insulation consists of the thermoplastic PVC according to VI) E mixture type YJ 1. This mixture has the following characteristics: permissible operating temperature max. 700C, tensile strength # @ = 125 kp / cm2, elongation at break = 125% DC stress resistant, spec. Volume resistance at 700C = 10 #.

Die Füllung des gerillten inneren Mantels besteht aus einem schälbaren, hochgefüllten PVC/Buthylgemisch.The filling of the grooved inner jacket consists of a peelable, highly filled PVC / butyl mixture.

Der gerillte innere Mantel besteht aus einem Niederdruck-Polyäthylen Copolymer mit einer mittleren Streckspannung bei Raumtemperatur auf 100 mm/min.=275 kp/cm2. Einer Reißfestigkeit IIIILer gleichen Bedingungen von 160 kp/cm2, sowie eine Reißdehnung unter ebenfalls gleichen Bedingungen von 300 %. Der Elastizitätsmodul E = 12.500 kp/cm2, die Torsionssteifigkeit liegt bei 2 2500 kp/cm .The grooved inner jacket is made of a low-pressure polyethylene Copolymer with an average yield stress at room temperature of 100 mm / min. = 275 kp / cm2. A tear strength IIIIL under the same conditions of 160 kp / cm2, as well an elongation at break of 300% under the same conditions. The modulus of elasticity E = 12,500 kp / cm2, the torsional stiffness is 2 2500 kp / cm.

Der äußere Mantel aus Polyvinylchlorid weist die folgenden VDE-Kenndaten auf: Der Mischungstyp ist YM 1. Die zulässige Betriebstemperatur beträgt höchstens 700. Die Zugfestigkeit liegt bei 125 kp/cm², die Bruchdehnung#B = 125 %.The outer jacket made of polyvinyl chloride has the following VDE characteristics on: The mixture type is YM 1. The maximum permissible operating temperature is 700. The tensile strength is 125 kp / cm², the elongation at break # B = 125%.

Die Adern kommen verseilt zur Ausführung und haben daher eine verhältnismäßig hohe elastische Dehnbarkeit.The cores are stranded and therefore have a proportionate high elastic extensibility.

Claims (1)

PATENTANSPRUCH Verwendung der mehradrigen elektrischen Leitung mit einem quergerillten inneren Mantel aus Polyäthylen, der die isolierten Adern umschließt, wobei der Raum zwischen den Aderisolierungen und dem gerillten inneren Mantel durch einen Isolierstoff gefüllt ist, und mit einem äußeren Mantel aus Polyvinylchlorid, der den quergerillten inneren Mantel umgibt und außen glatt und blank ist, nach Patent Nr. (P 25 15 ()25.8) als Abspannleitung. PATENT CLAIM Use of the multi-core electrical cable with a transversely grooved inner sheath made of polyethylene, which encloses the insulated wires, whereby the space between the core insulation and the grooved inner jacket through an insulating material is filled, and with an outer jacket made of polyvinyl chloride, which surrounds the transversely grooved inner jacket and is smooth and shiny on the outside Patent No. (P 25 15 () 25.8) as a guy line.
DE19772715490 1977-04-06 1977-04-06 Multicore electrical cable with inner transversely fluted polyethylene - and PVC outer mantle; has relatively higher tensile strength Withdrawn DE2715490A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772715490 DE2715490A1 (en) 1977-04-06 1977-04-06 Multicore electrical cable with inner transversely fluted polyethylene - and PVC outer mantle; has relatively higher tensile strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772715490 DE2715490A1 (en) 1977-04-06 1977-04-06 Multicore electrical cable with inner transversely fluted polyethylene - and PVC outer mantle; has relatively higher tensile strength

Publications (1)

Publication Number Publication Date
DE2715490A1 true DE2715490A1 (en) 1978-10-12

Family

ID=6005819

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772715490 Withdrawn DE2715490A1 (en) 1977-04-06 1977-04-06 Multicore electrical cable with inner transversely fluted polyethylene - and PVC outer mantle; has relatively higher tensile strength

Country Status (1)

Country Link
DE (1) DE2715490A1 (en)

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