JP2008262881A - Polyethylene insulation wire for leading-in - Google Patents

Polyethylene insulation wire for leading-in Download PDF

Info

Publication number
JP2008262881A
JP2008262881A JP2007106641A JP2007106641A JP2008262881A JP 2008262881 A JP2008262881 A JP 2008262881A JP 2007106641 A JP2007106641 A JP 2007106641A JP 2007106641 A JP2007106641 A JP 2007106641A JP 2008262881 A JP2008262881 A JP 2008262881A
Authority
JP
Japan
Prior art keywords
polyethylene
insulator
electric wire
black
colored
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.)
Pending
Application number
JP2007106641A
Other languages
Japanese (ja)
Inventor
Hironori Suzuki
宏典 鈴木
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.)
Yazaki Corp
Original Assignee
Yazaki Corp
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 Yazaki Corp filed Critical Yazaki Corp
Priority to JP2007106641A priority Critical patent/JP2008262881A/en
Publication of JP2008262881A publication Critical patent/JP2008262881A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Landscapes

  • Insulated Conductors (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lead-in polyethylene insulating cable capable of preventing an insulator destruction such as an inter-phase short circuit and capable of preventing spread of burning flame and extinction of the surface of the insulator. <P>SOLUTION: The low-voltage lead-in wire 11 as a polyethylene insulating cable for leading in is constructed by braiding a first electric wire 12 in which an insulator 15 in which a metal hydroxide is blended in polyethylene and which is colored in black is coated on a conductor 14 and a second electric wire 13 in which an insulator 19 which is constituted of an inner layer 17 made of polyethylene colored in black and an outer layer 18 in which the metal hydroxide and ultraviolet absorber are blended in polyethylene and which is colored in a color other than black is coated on the conductor 16. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、引き込み用ポリエチレン絶縁電線に関する。   The present invention relates to a lead-in polyethylene insulated wire.

複数の電線を撚り合わせてなる低圧引き込み電線は、屋外の電柱から各家の軒先へ電線の引き込みをするものとして知られている。下記特許文献１には三本の電線を撚り合わせてなる低圧引き込み電線の技術が開示されている。   A low-voltage lead-in electric wire formed by twisting a plurality of electric wires is known as an electric wire drawn from an outdoor utility pole to the eaves of each house. Patent Document 1 below discloses a technique of a low-voltage lead-in electric wire formed by twisting three electric wires.

図２において、下記特許文献１の低圧引き込み電線（ＤＶＲ電線）１は、第１の電線２と、二本の第２の電線３とを撚り合わせることによりなっている。三本の電線は、各々表面がポリ塩化ビニル系樹脂からなる絶縁体を有している。各電線について具体的に説明すると、第１の電線２は、ポリ塩化ビニル系樹脂からなる黒色の絶縁体４を導体５に被覆することによりなっている。一方、第２の電線３は、内側にポリ塩化ビニル系樹脂からなる黒色の内層６、外側にポリ塩化ビニル系樹脂からなる色彩の異なる着色外層７とを有する絶縁体８を導体９に被覆することによりなっている。下記特許文献１の低圧引き込み電線１は、三本の電線それぞれを識別することができるようになっている。
特開２００６−５４０５６号公報 （第４頁、第１−２図） In FIG. 2, a low-voltage lead-in electric wire (DVR electric wire) 1 disclosed in Patent Document 1 described below is formed by twisting a first electric wire 2 and two second electric wires 3 together. Each of the three electric wires has an insulator whose surface is made of a polyvinyl chloride resin. If it demonstrates concretely about each electric wire, the 1st electric wire 2 will cover the conductor 5 with the black insulator 4 which consists of a polyvinyl chloride resin. On the other hand, the second electric wire 3 covers a conductor 9 with an insulator 8 having a black inner layer 6 made of a polyvinyl chloride resin on the inside and a colored outer layer 7 made of a polyvinyl chloride resin on the outside on different colors. It has become. The low-voltage lead-in electric wire 1 of Patent Document 1 below can identify each of the three electric wires.
JP 2006-54056 A (page 4, FIG. 1-2)

ポリ塩化ビニルはハロゲン含有ポリマーであることから、火災の際の燃焼時に、塩化水素等の有害なガスが発生してしまうという問題点を有している。このため、有害なハロゲン化水素ガスの発生がないポリエチレンを絶縁体に適用することが考えられる。しかしながら、絶縁体がポリエチレンであると端末部にてトラッキングが発生した場合には、発火してしまうという問題点を有している。   Since polyvinyl chloride is a halogen-containing polymer, it has a problem that harmful gases such as hydrogen chloride are generated during combustion in a fire. For this reason, it is conceivable to apply polyethylene that does not generate harmful hydrogen halide gas to the insulator. However, if the insulator is polyethylene, there is a problem in that it will ignite when tracking occurs at the terminal portion.

ポリエチレンを絶縁体に適用する場合の問題点を更に挙げると、ポリエチレンは耐候性が良くないことが知られている。特に電線を撚り合わせる引き込み電線にあっては、長時間の使用により緑や青色の絶縁体が紫外線劣化によって脆くなり、また、薄くなる。そして、最終的には亀裂が生じて相間短絡などによる絶縁体破壊に至り、これが上記の問題点よりも大きなものとなってしまう。   To further point out the problems in applying polyethylene to insulators, it is known that polyethylene has poor weather resistance. In particular, in the case of a lead-in wire that twists the wires, the green or blue insulator becomes brittle or thin due to ultraviolet deterioration due to long-term use. And finally, a crack is generated, leading to breakdown of the insulator due to a short circuit between phases, which is larger than the above problem.

本発明は、上述した事情に鑑みてなされたもので、相間短絡等の絶縁体破壊を防止することが可能であり、また、絶縁体表面の炎の燃え広がりを防止し消炎が可能な引き込み用ポリエチレン絶縁電線を提供することを課題とする。   The present invention has been made in view of the above-described circumstances, and it is possible to prevent insulator breakdown such as interphase short circuit, and to prevent the spread of flame on the surface of the insulator and to extinguish the polyethylene. It is an object to provide an insulated wire.

上記課題を解決するためになされた請求項１記載の本発明の引き込み用ポリエチレン絶縁電線は、ポリエチレンに金属水酸化物を配合し且つ黒色に着色された絶縁体を導体に被覆してなる第１の電線と、黒色に着色されたポリエチレンからなる内層とポリエチレンに金属水酸化物及び紫外線吸収剤を配合し且つ黒色以外の色彩に着色された外層とで構成される絶縁体を導体に被覆してなる第２の電線と、を撚り合わせてなることを特徴としている。   In order to solve the above-mentioned problems, the lead-in polyethylene insulated wire according to claim 1 of the present invention is obtained by mixing a metal hydroxide with polyethylene and coating a conductor with a black colored insulator. The conductor is coated with an insulator composed of an electric wire, an inner layer made of polyethylene colored in black, and an outer layer colored in polyethylene with a metal hydroxide and an ultraviolet absorber and colored in a color other than black. The second electric wire is twisted together.

このような特徴を有する本発明によれば、第１の電線及び第２の電線は共に耐候性のある電線となる。従って、紫外線劣化による絶縁体の脆さや薄肉になることが避けられる。これにより、第１の電線及び第２の電線を撚り合わせても相間短絡などによる絶縁体破壊が避けられる。第２の電線は、複数使用の場合、識別可能である。   According to the present invention having such characteristics, both the first electric wire and the second electric wire are weather-resistant electric wires. Therefore, it is possible to prevent the insulator from becoming brittle or thin due to ultraviolet deterioration. Thereby, even if the 1st electric wire and the 2nd electric wire are twisted together, the insulator destruction by the short circuit between phases etc. is avoided. The second electric wire is identifiable in the case of multiple use.

また、本発明によれば、例えばトラッキングが発生して炎が絶縁体表面を燃え広がろうとしても、ポリエチレンに配合された金属水酸化物に含まれる結晶水が噴出して自己消化を行い、燃焼がし難くなる。   In addition, according to the present invention, for example, even if tracking occurs and the flame burns and spreads on the surface of the insulator, the crystal water contained in the metal hydroxide blended in the polyethylene is jetted and self-digested, It becomes difficult to burn.

ポリエチレンは、成形性、機械的性質、熱安定性、耐薬品性などが良く、且つ安価な樹脂である。本発明では耐候性も持たせた樹脂である。金属水酸化物は無機難燃剤であり、金属水和物が用いられる。   Polyethylene is an inexpensive resin that has good moldability, mechanical properties, thermal stability, chemical resistance, and the like. In the present invention, the resin also has weather resistance. Metal hydroxide is an inorganic flame retardant, and metal hydrate is used.

金属水酸化物としては、水酸化マグネシウム、水酸化アルミニウム、水酸化ジルコニウム、水酸化カルシウム、水酸化バリウムのいずれか一種類、或いは二種類以上の混合物が一例として挙げられる。   Examples of the metal hydroxide include magnesium hydroxide, aluminum hydroxide, zirconium hydroxide, calcium hydroxide, barium hydroxide, or a mixture of two or more.

本発明によれば、相間短絡等の絶縁体破壊を防止することが可能な耐候性を有する引き込み用ポリエチレン絶縁電線を提供することができるという効果を奏する。また、本発明によれば、絶縁体表面の炎の燃え広がりを防止し消炎が可能な難燃性を有する引き込み用ポリエチレン絶縁電線を提供することができるという効果を奏する。   Advantageous Effects of Invention According to the present invention, there is an effect that it is possible to provide a lead-in insulated polyethylene insulated wire having weather resistance capable of preventing insulator breakdown such as interphase short circuit. Moreover, according to this invention, there exists an effect that the polyethylene insulation electric wire for lead-in which has the flame retardance which can prevent the flame spread of the insulator surface and can be extinguished can be provided.

以下、図面を参照しながら説明する。図１は本発明の一実施の形態を示す引き込み用ポリエチレン絶縁電線の端面図である。   Hereinafter, description will be given with reference to the drawings. FIG. 1 is an end view of a lead-in polyethylene insulated wire showing an embodiment of the present invention.

図１において、本発明の引き込み用ポリエチレン絶縁電線（ＤＥ電線）は、耐候性及び難燃性を有する低圧引き込み電線１１であって、特に数を限定するものでないが、一本の第１の電線１２と、二本の第２の電線１３とを撚り合わせてなっている。   In FIG. 1, a polyethylene insulated wire (DE wire) for lead-in of the present invention is a low-voltage lead-in wire 11 having weather resistance and flame retardancy, and is not particularly limited in number, but is a single first wire. 12 and two second electric wires 13 are twisted together.

低圧引き込み電線１１の第１の電線１２は、導体１４と、この導体１４の外周を被覆する絶縁体１５とを備えて構成されている。また、各第２の電線１３は、導体１６と、この導体１６の外周を被覆する、内層１７と外層１８の二層構造となる絶縁体１９とを備えて構成されている。   The first electric wire 12 of the low-voltage lead-in electric wire 11 includes a conductor 14 and an insulator 15 that covers the outer periphery of the conductor 14. Each second electric wire 13 includes a conductor 16 and an insulator 19 that covers the outer periphery of the conductor 16 and has a two-layer structure of an inner layer 17 and an outer layer 18.

第１の電線１２及び第２の電線１３は、三本とも同じ所定の直径を有している。導体１４及び１６は、銅又は硬アルミからなっている。   The three first wires 12 and the second wires 13 have the same predetermined diameter. The conductors 14 and 16 are made of copper or hard aluminum.

第１の電線１２の絶縁体１５は、金属水酸化物を配合し且つ黒色に着色されたポリエチレンからなっている。第２の電線１３の絶縁体１９における内層１７は、黒色に着色されたポリエチレンからなっている。また、第２の電線１３の絶縁体１９における外層１８は、金属水酸化物及び紫外線吸収剤を配合し且つ黒色以外の色彩に着色されたポリエチレンからなっている。   The insulator 15 of the first electric wire 12 is made of polyethylene that is mixed with a metal hydroxide and colored black. The inner layer 17 in the insulator 19 of the second electric wire 13 is made of polyethylene colored in black. Further, the outer layer 18 in the insulator 19 of the second electric wire 13 is made of polyethylene that is mixed with a metal hydroxide and an ultraviolet absorber and is colored in a color other than black.

金属水酸化物は、自己消化作用と絶縁体の機械的特性とに配慮してポリエチレンに対する配合量が設定されている。本形態においては、特に限定するものでないが、ポリエチレン１００重量部に対して金属水酸化物５０〜２００重量部を配合するようになっている。金属水酸化物は、水酸化マグネシウム、水酸化アルミニウム、水酸化ジルコニウム、水酸化カルシウム、水酸化バリウムのいずれか一種類、或いは二種類以上の混合物であるものとする。   The amount of metal hydroxide added to polyethylene is set in consideration of the self-digestion action and the mechanical properties of the insulator. Although it does not specifically limit in this form, 50-200 weight part of metal hydroxide is mix | blended with respect to 100 weight part of polyethylene. The metal hydroxide is any one of magnesium hydroxide, aluminum hydroxide, zirconium hydroxide, calcium hydroxide, and barium hydroxide, or a mixture of two or more.

ポリエチレンを黒色に着色することに関しては、カーボンブラックを添加することが一例として挙げられる。これにより、耐候性の面から紫外線劣化を避けることができるようになる。第２の電線１３の外層１８に係る紫外線吸収剤の配合は、耐候性に配慮してポリエチレンに対する配合量が設定されている。第２の電線１３は、この外層１８を黒色以外の色彩に着色することによって識別をすることが可能になっている。   As an example of coloring polyethylene black, adding carbon black is an example. This makes it possible to avoid ultraviolet degradation from the viewpoint of weather resistance. As for the blending of the ultraviolet absorber related to the outer layer 18 of the second electric wire 13, the blending amount with respect to polyethylene is set in consideration of the weather resistance. The second electric wire 13 can be identified by coloring the outer layer 18 in a color other than black.

上記構成において、低圧引き込み電線１１における第１の電線１２及び第２の電線１３は共に耐候性のある電線となっている。従って、紫外線劣化による絶縁体の不具合を避けることができる。すなわち、第１の電線１２及び第２の電線１３を撚り合わせても相間短絡などによる絶縁体破壊を避けることができる。   In the above configuration, the first electric wire 12 and the second electric wire 13 in the low-voltage lead-in electric wire 11 are both weather-resistant electric wires. Therefore, it is possible to avoid the problem of the insulator due to the deterioration of ultraviolet rays. That is, even if the first electric wire 12 and the second electric wire 13 are twisted together, it is possible to avoid insulator breakdown due to a short circuit between phases.

低圧引き込み電線１１は、この端末にて例えばトラッキングが発生し炎が絶縁体１５の表面を燃え広がろうとしても、或いは、炎が絶縁体１９の外層１８の表面を燃え広がろうとしても、絶縁体１５、外層１８のポリエチレンに配合された金属水酸化物に含まれる結晶水が噴出して自己消化が行われるようになっている。従って、低圧引き込み電線１１は燃焼し難いものとなっている。また、低圧引き込み電線１１は、塩化水素等の有害なガスの発生がない環境に優しいものとなっている。   Even if the low voltage lead-in wire 11 is, for example, tracking occurs at this terminal and a flame tries to burn and spread on the surface of the insulator 15, or a flame tries to burn and spread on the surface of the outer layer 18 of the insulator 19, Crystal water contained in the metal hydroxide blended in the polyethylene of the insulator 15 and the outer layer 18 is ejected and self-digestion is performed. Therefore, the low-voltage lead-in wire 11 is difficult to burn. Further, the low-voltage lead-in wire 11 is environmentally friendly with no generation of harmful gas such as hydrogen chloride.

以上、本発明によれば、相間短絡等の絶縁体破壊を防止することができるという効果を奏する。また、本発明によれば、絶縁体表面の炎の燃え広がりを防止し消炎することができるという効果を奏する。   As mentioned above, according to this invention, there exists an effect that insulator destruction, such as an interphase short circuit, can be prevented. Further, according to the present invention, there is an effect that it is possible to prevent and spread the flame on the surface of the insulator.

その他、本発明は本発明の主旨を変えない範囲で種々変更実施可能なことは勿論である。   In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

一例を挙げるとすると、上記説明では三本の電線を撚り合わせてなる例になっているが、これに限らないものとする。すなわち、第１の電線１２及び第２の電線１３の撚り合わせであれば二本や四本以上で構成したりしても良いものとする。   As an example, the above description is an example in which three wires are twisted together, but this is not restrictive. That is, if the first electric wire 12 and the second electric wire 13 are twisted together, two or four or more wires may be used.

本発明の一実施の形態を示す引き込み用ポリエチレン絶縁電線の端面図である。It is an end view of the lead-in polyethylene insulated wire showing an embodiment of the present invention. 従来例の低圧引き込み電線の端面図である。It is an end view of the low voltage | pressure lead-in electric wire of a prior art example.

符号の説明Explanation of symbols

１１ 低圧引き込み電線（引き込み用ポリエチレン絶縁電線）
１２ 第１の電線
１３ 第２の電線
１４ 導体
１５ 絶縁体
１６ 導体
１７ 内層
１８ 外層
１９ 絶縁体 11 Low voltage lead-in wire (polyethylene insulated wire for lead-in)
DESCRIPTION OF SYMBOLS 12 1st electric wire 13 2nd electric wire 14 Conductor 15 Insulator 16 Conductor 17 Inner layer 18 Outer layer 19 Insulator

Claims (1)

ポリエチレンに金属水酸化物を配合し且つ黒色に着色された絶縁体を導体に被覆してなる第１の電線と、黒色に着色されたポリエチレンからなる内層とポリエチレンに金属水酸化物及び紫外線吸収剤を配合し且つ黒色以外の色彩に着色された外層とで構成される絶縁体を導体に被覆してなる第２の電線と、を撚り合わせてなる
ことを特徴とする引き込み用ポリエチレン絶縁電線。 A first electric wire formed by coating a conductor with a black-colored insulator mixed with a metal hydroxide in polyethylene; an inner layer made of black-colored polyethylene; and a metal hydroxide and an ultraviolet absorber in the polyethylene And a second electric wire formed by coating a conductor with an insulator composed of an outer layer colored with a color other than black. A polyethylene insulated electric wire for lead-in, which is formed by twisting together a conductor.
JP2007106641A 2007-04-16 2007-04-16 Polyethylene insulation wire for leading-in Pending JP2008262881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007106641A JP2008262881A (en) 2007-04-16 2007-04-16 Polyethylene insulation wire for leading-in

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007106641A JP2008262881A (en) 2007-04-16 2007-04-16 Polyethylene insulation wire for leading-in

Publications (1)

Publication Number Publication Date
JP2008262881A true JP2008262881A (en) 2008-10-30

Family

ID=39985181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007106641A Pending JP2008262881A (en) 2007-04-16 2007-04-16 Polyethylene insulation wire for leading-in

Country Status (1)

Country Link
JP (1) JP2008262881A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103310899A (en) * 2013-06-02 2013-09-18 安徽省电力公司蚌埠供电公司 Portable noctilucent short circuit earth lead
WO2014011476A1 (en) * 2012-07-13 2014-01-16 Rockbestos Surprenant Cable Corp. Cable having a thin film material and methods of preventing discoloration damage to a cable having a thin film material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014011476A1 (en) * 2012-07-13 2014-01-16 Rockbestos Surprenant Cable Corp. Cable having a thin film material and methods of preventing discoloration damage to a cable having a thin film material
GB2517608A (en) * 2012-07-13 2015-02-25 Rockbestos Surprenant Cable Corp Cable having a thin film material and methods of preventing discoloration damage to a cable having a thin film material
US9640300B2 (en) 2012-07-13 2017-05-02 Rockbestos Surprenant Cable Corp. Cable having a thin film material and methods of preventing discoloration damage to a cable having a thin film material
GB2517608B (en) * 2012-07-13 2020-02-26 Rockbestos Surprenant Cable Corp Cable having a thin film material and methods of preventing discoloration damage to a cable having a thin film material
CN103310899A (en) * 2013-06-02 2013-09-18 安徽省电力公司蚌埠供电公司 Portable noctilucent short circuit earth lead

Similar Documents

Publication Publication Date Title
US9330818B2 (en) Electrical cable resistant to fire, water and mechanical stresses
US20050023029A1 (en) Flame-resistant cable
JP2008262881A (en) Polyethylene insulation wire for leading-in
CN201204089Y (en) Environment protection type composite insulated high temperature resistant flame-proof cable
CN107658063A (en) A kind of flame retardant cable
JP2006286304A (en) Tree-resistant cable
CN203397749U (en) Fireproof cable
CN208489039U (en) A kind of tension flame-retardant fire-resistant power cable
JP2009099401A (en) Lead-in polyethylene insulated cable
JP2008066174A (en) Stranded cable
CN105489299A (en) High-flame-retardation high-fireproof flexible cable used for communication power supply
CN104157357A (en) Low-smoke zero-halogen solar photovoltaic cable
JP2008305569A (en) Halogen-free fire-retardant cable
CN208489022U (en) Novel flexible fireproof cable
CN209183309U (en) A kind of flame-proof wire
CN209843275U (en) Double-layer insulation fire-resistant long-life cable wire
CN202615895U (en) Environmental protection type high temperature resistant power cable
CN209880221U (en) Safe type fire prevention electric wire
RU120506U1 (en) FIRE RESISTANT CABLE WITH SILICON ORGANIC RUBBER
CN202110869U (en) Tough high-flame-retardant oxygen-isolating layer cable for rated voltage equal to and less than 0.6/1kV
CN102646463A (en) Low-smoke, zero-halogen, flame-retardant and environment-friendly electric wire
RU220777U1 (en) Power cable
JP2009117359A (en) Paper filling string for power cable, and power cable using the same
CN207909532U (en) A kind of fire resistant flame retardant cable
CN205621502U (en) Fire -retardant fire -resistant shielding control cable

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100225

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20120926

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20120927

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20121005

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20121025

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20121030

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20121225

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20130129