DE3537221A1 - FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATION - Google Patents
FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATIONInfo
- Publication number
- DE3537221A1 DE3537221A1 DE19853537221 DE3537221A DE3537221A1 DE 3537221 A1 DE3537221 A1 DE 3537221A1 DE 19853537221 DE19853537221 DE 19853537221 DE 3537221 A DE3537221 A DE 3537221A DE 3537221 A1 DE3537221 A1 DE 3537221A1
- Authority
- DE
- Germany
- Prior art keywords
- insulation
- halogen
- layer
- flame retardant
- layers
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/427—Polyethers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Abstract
Description
Die Erfindung bezieht sich auf eine flammwidrig und halogenfrei ausgebildete Isolierung für Adern oder Leitungen, die aus zwei Schichten besteht.The invention relates to a flame retardant and halogen-free insulation for wires or Lines that consist of two layers.
Die Entwicklung von flammwidrigen, halogenfreien Adern und Leitungen, die meist als FRNC-Leitungen bezeichnet werden, ist auf dem Kabelsektor ein hochaktuelles Thema. Die handelsüblichen Materialien, wie z. B. Polyäthylen (PE), Silikongummi (SiR), Polyetheretherketon (PEEK) oder Äthylen-Vinylacetat-Cop. (EVA) erfüllen bislang nicht alle Anforderungen, die für spezielle Einsätze benötigt werden. Das trifft auch für die PVC-isolierten Leitungen zu, die vorzugsweise in Kraftwerken verlegt werden, wobei dort die Anschlußtechnik nach dem sogenannten "Termipoint-Verfahren" erfolgt. Diese Anschlußtechnik verlangt neben exakten Aderabmessungen einen geringen Haftsitz zwischen der Isolierhülle und dem Leiter und ein spezielles Reißdehnungsverhalten der Isolierung.The development of flame retardant, halogen free cores and Lines that are usually referred to as FRNC lines is a hot topic in the cable sector. The commercially available materials, such as. B. polyethylene (PE), Silicone rubber (SiR), polyether ether ketone (PEEK) or Ethylene vinyl acetate cop. (EVA) have not yet met everyone Requirements that are required for special operations. This also applies to the PVC-insulated cables that preferably installed in power plants, where the Connection technology according to the so-called "termipoint method" he follows. This connection technology requires, besides exact Wire dimensions a small tight fit between the Insulating sleeve and the conductor and a special Elongation at break of the insulation.
Es ist auch bekannt, die Isolierung aus zwei Schichten verschiedener Stoffe aufzubauen, um so die verschiedenen Eigenschaften der Isolierstoffe zur Geltung zu bringen. Z. B. ist eine zweischichtige Isolierung aus der DE-OS 29 43 236 bekannt. Die darin beschriebene Leitung weist eine relativ dicke Siliziumisolierung auf, die von einer dünnen Schicht aus Polyester umgeben ist. Dabei fällt der äußeren Schicht die Aufgabe einer mechanischen Schutzhülle zu, da die darunterliegende, die eigentliche Isolierung bildende Silikongummischicht mechanisch nicht ausreichend widerstandsfähig ist. It is also known to have two layers of insulation different materials to build the different To bring out the properties of the insulating materials. For example, a two-layer insulation is made from the DE-OS 29 43 236 known. The line described therein has a relatively thick silicon insulation that from is surrounded by a thin layer of polyester. It falls the outer layer the task of a mechanical Protective cover too, since the underlying one, the actual one Silicone rubber layer not forming insulation mechanically is sufficiently resistant.
Da bisher eine befriedigende Ader- oder Leitungskonstruktion mit einer flammwidrigen, halogenfreien Isolierung noch nicht bekannt geworden ist, zielt die Erfindung darauf ab, eine ebenfalls aus mehreren Schichten aufgebaute Isolierung für Adern oder Leitungen anzugeben, die den eingangs erwähnten Forderungen besser gerecht wird. Zur Lösung dieser Aufgabe wird gemäß der Erfindung vorgeschlagen, daß die innere Schicht aus einer relativ dünnen Lage hochdichten Polyäthylens besteht, die von einer äußeren 2- bis 5fach dickeren Schicht aus Polyphenylenoxid umschlossen ist.So far, a satisfactory core or cable construction not yet with flame-retardant, halogen-free insulation has become known, the invention aims to insulation made of several layers for Specify wires or lines that match those mentioned at the beginning Meets demands better. To solve this task it is proposed according to the invention that the inner High-density layer from a relatively thin layer Polyethylene consists of an outer 2- to 5-fold thicker layer of polyphenylene oxide is enclosed.
Gegenüber den bekannten zweischichtigen Isolierungen, wie sie beispielsweise in der DE-OS 29 43 236 beschrieben wird, ist der Aufbau der Isolierung ganz anders. Während bei der bekannten zweischichtigen Isolierung die dicke Schicht den Leiter unmittelbar umschließt, wird bei dem Vorschlag gemäß der Erfindung der Leiter von einer dünnen, jedoch nicht flammwidrigen Isolierschicht umgeben, die ihrerseits von einer wesentlich dickeren Schicht aus einem flammwidrigen Material umhüllt ist.Compared to the known two-layer insulation, such as they are described, for example, in DE-OS 29 43 236 the structure of the insulation is completely different. While at the well-known two-layer insulation the thick layer the head immediately surrounds the proposal according to the invention the conductor of a thin, however non-flame retardant insulating layer, which in turn surround from a much thicker layer from one flame retardant material is encased.
In Ausgestaltung der Erfindung kann man, um eine bessere mechanische Verbindung beider Schichten zu schaffen, diese beiden Schichten in ihrem Grenzbereich miteinander ver zahnen und verschweißen. In diesem Zusammenhang sei bemerkt, daß der Gedanke der Verzahnung an sich nicht neu ist. Schon in der DE-AS 10 75 180 wird eine Leitung behandelt, bei der der Innenmantel an seiner Außenseite Längsrippen aufweist, die mit dem Außenmantel die Verzahnung bewirken.In one embodiment of the invention, one can order a better one mechanical connection of both layers to create this ver both layers in their border area teeth and weld. In this context it should be noted that the idea of the interlocking itself is not new. Nice in DE-AS 10 75 180 a line is dealt with the inner jacket has longitudinal ribs on its outside, which cause the gearing with the outer jacket.
Die Erfindung wird anhand des in der Zeichnung dargestellten und nachfolgend näher beschriebenen Ausführungsbeispiels im einzelnen erläutert.The invention is illustrated by the in the drawing and embodiment described in more detail below in individual explained.
Die einzige Figur zeigt einen Querschnitt durch eine flamm widrig und halogenfrei ausgebildete Isolierung 11. The single figure shows a cross section through a flame-retardant and halogen-free insulation 11 .
Auf einen Leiter 10 ist eine relativ dünne Schicht 12 aus einem hochwertigen Polyäthylen (HDPE) als Primärisolierung aufgebracht, deren Oberfläche 13 gezahnt ist. Die Wanddicke dieser Schicht 12 beträgt etwa 0,05-0,1 mm. Die äußere, wesentlich dickere Schicht 14 der Isolierung 11, deren Dicke etwa das 2- bis 5fache der inneren Schicht 12 beträgt (0,2- 0,25 mm) besteht aus Polyphenylenoxid, das unter dem Namen "Noryl" im Handel erhältlich ist.A relatively thin layer 12 of high-quality polyethylene (HDPE) is applied as the primary insulation to a conductor 10 , the surface 13 of which is serrated. The wall thickness of this layer 12 is approximately 0.05-0.1 mm. The outer, substantially thicker layer 14 of the insulation 11 , the thickness of which is approximately 2 to 5 times the inner layer 12 (0.2-0.25 mm) consists of polyphenylene oxide, which is commercially available under the name "Noryl".
Um die gute "Verzahnung" der beiden Schichten 12 und 14 sicherzustellen, werden beide Materialien mittels eines speziellen Doppelkopfspritzwerkzeuges in einem Arbeits gang extrudiert und dabei auch miteinander verschweißt. Durch die Verzahnung und Verschweißung wird ein Verschieben oder Verdrehen der Isolierschichten 12 und 14 gegeneinander verhindert.In order to ensure the good "interlocking" of the two layers 12 and 14 , both materials are extruded in a single operation by means of a special double-head injection mold and are also welded to one another. The toothing and welding prevent the insulating layers 12 and 14 from shifting or rotating relative to one another.
Die Kombination der Isoliermittel Noryl/HDP ist flammwidrig, halogenfrei und erlaubt die Anwendung des Termipoint- Verfahrens als Anschlußtechnik. Ferner ist die Reißdehnung der Aderhülle bei dieser Isolierkombination erheblich verbessert. Die elektrischen Eigenschaften sind ebenfalls zufriedenstellend. Die Werte des Haftfestsitzes zwischen Isolierhülle und Leiter sinken auf die üblichen PVC-Werte.The combination of Noryl / HDP insulation is flame retardant, halogen-free and allows the use of the termipoint Process as connection technology. Furthermore, the elongation at break the core sleeve with this insulation combination considerably improved. The electrical properties are also satisfactory. The values of the tight fit between The insulating sleeve and conductor sink to the usual PVC values.
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853537221 DE3537221A1 (en) | 1985-10-17 | 1985-10-17 | FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATION |
AT86730157T ATE50079T1 (en) | 1985-10-17 | 1986-10-14 | FLAME-RESISTANT AND HALOGEN-FREE INSULATION. |
DE8686730157T DE3668721D1 (en) | 1985-10-17 | 1986-10-14 | FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATION. |
EP86730157A EP0222683B1 (en) | 1985-10-17 | 1986-10-14 | Flame-resistant and halogen-free insulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853537221 DE3537221A1 (en) | 1985-10-17 | 1985-10-17 | FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATION |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3537221A1 true DE3537221A1 (en) | 1987-04-23 |
Family
ID=6283939
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853537221 Withdrawn DE3537221A1 (en) | 1985-10-17 | 1985-10-17 | FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATION |
DE8686730157T Expired - Fee Related DE3668721D1 (en) | 1985-10-17 | 1986-10-14 | FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATION. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686730157T Expired - Fee Related DE3668721D1 (en) | 1985-10-17 | 1986-10-14 | FLAME RETARDANT AND HALOGEN-FREE TRAINED INSULATION. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0222683B1 (en) |
AT (1) | ATE50079T1 (en) |
DE (2) | DE3537221A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0407061A1 (en) * | 1989-07-04 | 1991-01-09 | Associated Electrical Industries Limited | Wire insulation |
EP1102282A1 (en) * | 1999-11-19 | 2001-05-23 | Studer Draht-und Kabelwerk AG | Electrical cable |
DE10236288A1 (en) * | 2002-08-08 | 2004-02-26 | Nexans | Electric cable |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2294801B (en) * | 1994-11-07 | 1999-04-21 | Bka | Improvements in and relating to electrical cables |
FR2792450B1 (en) | 1999-04-15 | 2001-06-01 | Cit Alcatel | TOTAL IMMERSION RESISTANT WINDING ELECTRIC WIRE |
ES2238043T3 (en) | 2000-02-21 | 2005-08-16 | Pirelli Energie Cables Et Systemes France | LOW VOLTAGE CABLE DOES NOT HALOGEN IGNIFUGO AND WATERPROOF. |
WO2002015202A1 (en) * | 2000-08-12 | 2002-02-21 | Abb Patent Gmbh | Cable comprising polyethylene covering and method for producing a cable |
EP1236764A1 (en) * | 2001-03-02 | 2002-09-04 | Studer Draht-und Kabelwerk AG | Flame-retardant cable with a protection-shield rodents and/or termites |
JP2008501210A (en) * | 2004-05-05 | 2008-01-17 | ユニオン・カーバイド・ケミカルズ・アンド・プラスティックス・テクノロジー・コーポレイション | Flame retardant plenum cable |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1537553A (en) * | 1967-09-22 | 1968-08-23 | Sumitomo Electric Industries | Power cables insulated with plastic |
GB1177471A (en) * | 1968-01-01 | 1970-01-14 | British Insulated Callenders | Improvements in Electric Cables. |
-
1985
- 1985-10-17 DE DE19853537221 patent/DE3537221A1/en not_active Withdrawn
-
1986
- 1986-10-14 EP EP86730157A patent/EP0222683B1/en not_active Expired - Lifetime
- 1986-10-14 DE DE8686730157T patent/DE3668721D1/en not_active Expired - Fee Related
- 1986-10-14 AT AT86730157T patent/ATE50079T1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0407061A1 (en) * | 1989-07-04 | 1991-01-09 | Associated Electrical Industries Limited | Wire insulation |
EP1102282A1 (en) * | 1999-11-19 | 2001-05-23 | Studer Draht-und Kabelwerk AG | Electrical cable |
DE10236288A1 (en) * | 2002-08-08 | 2004-02-26 | Nexans | Electric cable |
Also Published As
Publication number | Publication date |
---|---|
EP0222683B1 (en) | 1990-01-31 |
ATE50079T1 (en) | 1990-02-15 |
EP0222683A1 (en) | 1987-05-20 |
DE3668721D1 (en) | 1990-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |