JP2016115510A - Electrical line, shield wire and multicore cable using it - Google Patents

Electrical line, shield wire and multicore cable using it Download PDF

Info

Publication number
JP2016115510A
JP2016115510A JP2014252781A JP2014252781A JP2016115510A JP 2016115510 A JP2016115510 A JP 2016115510A JP 2014252781 A JP2014252781 A JP 2014252781A JP 2014252781 A JP2014252781 A JP 2014252781A JP 2016115510 A JP2016115510 A JP 2016115510A
Authority
JP
Japan
Prior art keywords
electric wire
insulating layer
conductor
layer
covering
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
JP2014252781A
Other languages
Japanese (ja)
Inventor
堀　賢治
Kenji Hori
賢治 堀
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP2014252781A priority Critical patent/JP2016115510A/en
Priority to CN201510926444.2A priority patent/CN105702357B/en
Publication of JP2016115510A publication Critical patent/JP2016115510A/en
Pending legal-status Critical Current

Links

Images

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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/24—Devices affording localised protection against mechanical force or pressure
    • 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
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875—Multi-layer sheaths
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

Landscapes

  • Insulated Conductors (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Laminated Bodies (AREA)
  • Organic Insulating Materials (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide fire-resistant electrical line having all of sufficient voltage endurance, mechanical property and wear resistance.SOLUTION: There is provided an electrical line 1 comprising conductor 2, first insulation layer (inner layer) 3 covering the conductor 2, and second insulation layer (outer layer) 4 covering the first insulation layer 3. The first insulation layer 3 contains polyethylene and adhesive agent. The second insulation layer 4 contains engineering plastic and flame retardant. All of the first insulation layer 3 and second insulation layer 4 are crosslinked.SELECTED DRAWING: Figure 1

Description

本発明は、電線、それを用いたシールド電線及び多芯ケーブルに関する。   The present invention relates to an electric wire, a shielded electric wire using the same, and a multicore cable.

特許文献１には、複数の絶縁被覆層を有する絶縁電線であって、前記複数の絶縁被覆層の内層または外層にポリフェニレンエーテル系樹脂を含有し、耐外傷性、耐摩耗性に優れ、自動車の用途に好適な、難燃性の絶縁電線が記載されている。   Patent Document 1 discloses an insulated wire having a plurality of insulating coating layers, containing a polyphenylene ether-based resin in the inner layer or the outer layer of the plurality of insulating coating layers, and having excellent damage resistance and wear resistance. A flame retardant insulated wire suitable for use is described.

特開２００９−３０１７６６号公報JP 2009-301766 A

しかしながら、特許文献１に記載のような電線では、耐電圧性、機械特性、耐摩耗性の全てを満足することはできなかった。
本発明は、耐電圧性、機械特性、耐摩耗性の全てを満足できる、難燃性の電線を提供することを目的とする。 However, the electric wire as described in Patent Document 1 cannot satisfy all of voltage resistance, mechanical properties, and wear resistance.
An object of the present invention is to provide a flame-retardant electric wire that can satisfy all of voltage resistance, mechanical properties, and wear resistance.

本発明の一態様に係る電線は、導体、前記導体を被覆する第１絶縁層、及び前記第１絶縁層を被覆する第２絶縁層を有する電線であって、前記第１絶縁層が、ポリエチレンと接着剤とを含有し、前記第２絶縁層が、エンジニアリングプラスチックと難燃剤とを含有し、前記第１絶縁層及び第２絶縁層のいずれもが架橋されている、電線である。
本発明の別の一態様に係るシールド電線は、前記電線と、外部導体と、それらの周囲の外被とを有するシールド電線である。
本発明の他の別の一態様に係る多芯ケーブルは、前記電線を複数本有し、複数本の前記電線の周囲を覆う一括シールド層と、前記一括シールド層の周囲を覆う外被とを有する多芯ケーブルである。 The electric wire according to one aspect of the present invention is an electric wire having a conductor, a first insulating layer covering the conductor, and a second insulating layer covering the first insulating layer, wherein the first insulating layer is made of polyethylene. And an adhesive, the second insulating layer contains an engineering plastic and a flame retardant, and both the first insulating layer and the second insulating layer are cross-linked.
The shielded electric wire which concerns on another one aspect | mode of this invention is a shielded electric wire which has the said electric wire, an external conductor, and the jacket of those circumference | surroundings.
A multi-core cable according to another aspect of the present invention includes a plurality of the electric wires, a collective shield layer that covers the periphery of the plurality of electric wires, and a jacket that covers the periphery of the collective shield layer. It is a multicore cable.

本発明によれば、耐電圧性、機械特性、耐摩耗性の全てを満足できる、難燃性の電線を提供することが可能となる。   According to the present invention, it is possible to provide a flame-retardant electric wire that can satisfy all of voltage resistance, mechanical properties, and wear resistance.

本発明の電線の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of the electric wire of this invention. 本発明の電線を用いたシールド電線の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of the shielded electric wire using the electric wire of this invention. 本発明の電線を用いた多芯ケーブルの一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of the multi-core cable using the electric wire of this invention.

［本願発明の実施形態の説明］
本発明の一態様に係る電線は、（１）導体、前記導体を被覆する第１絶縁層、及び前記第１絶縁層を被覆する第２絶縁層を有する電線であって、
前記第１絶縁層が、ポリエチレンと接着剤とを含有し、
前記第２絶縁層が、エンジニアリングプラスチックと難燃剤とを含有し、
前記第１絶縁層及び第２絶縁層のいずれもが架橋されている。 [Description of Embodiment of Present Invention]
The electric wire according to one aspect of the present invention is (1) an electric wire having a conductor, a first insulating layer covering the conductor, and a second insulating layer covering the first insulating layer,
The first insulating layer contains polyethylene and an adhesive;
The second insulating layer contains an engineering plastic and a flame retardant;
Both the first insulating layer and the second insulating layer are cross-linked.

電線の耐電圧性の要求を満たすために、導体を被覆する絶縁層を複数層とし、その導体側、すなわち内側の層にポリエチレン（以下、ＰＥとも記す）が使用される。
また、電線の機械特性、耐摩耗性の要求を満たすために、複数層の絶縁層の外側の層にアミド結合、エステル結合またはウレタン結合のいずれか一つ以上を有する熱可塑性樹脂等のエンジニアプラスチック（以下、エンプラとも記す）が使用される。
しかしながら、ＰＥを含む内側の層とエンジニアリングプラスチックを含む外側の層とで構成された絶縁層を有する電線は、耐摩耗性が低下するという問題が生じた。
そこで、本実施形態では、ＰＥを含む内側の層、即ち、第１絶縁層に接着剤を含ませたことにより、耐電圧性、機械特性、耐摩耗性の全てを満足できる、難燃性の電線とすることができた。 In order to satisfy the voltage resistance requirement of the electric wire, a plurality of insulating layers covering the conductor are used, and polyethylene (hereinafter also referred to as PE) is used on the conductor side, that is, the inner layer.
In addition, in order to satisfy the requirements of mechanical properties and wear resistance of electric wires, engineer plastics such as thermoplastic resins having one or more of an amide bond, an ester bond or a urethane bond on the outer layer of a plurality of insulating layers (Hereinafter also referred to as engineering plastic) is used.
However, an electric wire having an insulating layer composed of an inner layer containing PE and an outer layer containing engineering plastic has a problem that wear resistance is lowered.
Therefore, in this embodiment, by including an adhesive in the inner layer containing PE, that is, the first insulating layer, it is possible to satisfy all of the voltage resistance, mechanical properties, and wear resistance, and the flame-retardant property. It was possible to use an electric wire.

（２）前記第１絶縁層が含有するポリエチレンと接着剤の質量比（ポリエチレン：接着剤）が、４：６〜６：４であることが好ましい。この質量比範囲であれば、耐摩耗性と耐電圧性がより好ましい状態になる。
（３）前記第２絶縁層におけるエンジニアリングプラスチックの含有量が５０〜８６質量％であることが好ましい。この含有量範囲であれば、耐摩耗性がより好ましい状態になる。 (2) It is preferable that mass ratio (polyethylene: adhesive) of polyethylene and an adhesive contained in the first insulating layer is 4: 6 to 6: 4. Within this mass ratio range, the wear resistance and the voltage resistance are more preferable.
(3) It is preferable that content of the engineering plastic in the said 2nd insulating layer is 50-86 mass%. If it is this content range, it will be in a state with more preferable abrasion resistance.

（４）前記導体の断面積が０．５ｍｍ２以上２．０ｍｍ２以下であることが好ましい。車輌に搭載される電線として好適な大きさである。
（５）前記第１絶縁層の厚さが０．０４ｍｍ以上０．０６ｍｍ以下であることが好ましい。前記車輌に搭載される電線として好適な大きさであり、耐電圧性、機械特性、耐摩耗性の全てを満足できる。
（６）上記本実施形態の電線は、該電線と、外部導体と、それらの周囲に外被とを設けることにより、シールド電線とすることができる。
（７）また、上記本実施形態の電線は、該電線の複数本と、複数本の前記電線の周囲を覆う一括シールド層と、前記一括シールド層の周囲を覆う外被と設けることにより、多芯ケーブルとすることができる。 (4) It is preferable that the cross-sectional area of the conductor is 0.5 mm 2 or more and 2.0 mm 2 or less. It is a suitable size as an electric wire mounted on a vehicle.
(5) It is preferable that the thickness of the first insulating layer is 0.04 mm or more and 0.06 mm or less. It is a suitable size as an electric wire mounted on the vehicle, and can satisfy all of voltage resistance, mechanical properties, and wear resistance.
(6) The electric wire of the present embodiment can be a shielded electric wire by providing the electric wire, an external conductor, and a jacket around them.
(7) Moreover, the electric wire of the said embodiment is provided with a plurality of the electric wires, a collective shield layer covering the periphery of the plural electric wires, and a jacket covering the periphery of the collective shield layer. It can be a core cable.

［本願発明の実施形態の詳細］
以下、本発明の実施形態について、詳細に説明する。
（電線の概要）
以下、本発明の実施形態について、図１を参照して詳細に説明する。
（絶縁電線の概要）
図１は、本発明の一形態である電線の一例を示す概略断面図である。
電線１は、導体２と、導体２の外周に、少なくとも第１絶縁層（以下、内層とも記す）３と第２絶縁層（以下、外層とも記す）４の２層の絶縁層とを有する。第１絶縁層３は導体２と第２絶縁層４に密着する。 [Details of the embodiment of the present invention]
Hereinafter, embodiments of the present invention will be described in detail.
(Outline of electric wire)
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG.
(Outline of insulated wire)
FIG. 1 is a schematic cross-sectional view illustrating an example of an electric wire that is an embodiment of the present invention.
The electric wire 1 has a conductor 2 and at least two insulating layers of a first insulating layer (hereinafter also referred to as an inner layer) 3 and a second insulating layer (hereinafter also referred to as an outer layer) 4 on the outer periphery of the conductor 2. The first insulating layer 3 is in close contact with the conductor 2 and the second insulating layer 4.

（内層）
内層３はポリエチレンと接着剤とを含有する。
内層３に使用するポリエチレンは、特に限定されず、高密度ポリエチレン（ＨＤＰＥ）及び低高密度ポリエチレン（ＬＤＰＥ）のいずれであってもよく、電線１の仕様に応じて適切なものを選択すれば良い。
内層３に使用する接着剤は、特に限定されないが、例えば、グリシジルメタクリレート（ＧＭＡ）、酢酸ビニル（ＶＡ）、またはアクリル酸メチル（ＭＡ）のコポリマー等が挙げられる。この接着剤についても、電線１の仕様、内層３に使用するポリエチレン、後述の外層３に使用する樹脂との相性等に応じて適切なものを選択すれば良い。
内層３が含有するポリエチレンと接着剤の質量比（ポリエチレン：接着剤）は、特に限定されないが、４：６〜６：４であることが好ましい。
内層３には、酸化防止剤を含有していてもよい。
内層３の厚さとしては、０．０４ｍｍ〜０．０６ｍｍであることが好ましい。電線の太さには制限があり、内層を厚くした場合は、その分、後述の外層を薄くせざるを得ないことがある。本発明の電線において外層が薄くなると耐摩耗性、難燃性が十分でなくなる場合がある。このため、内層の厚さの上限は０．０６ｍｍであることが好ましい。詳細には、電線１の仕様、前述の内層３に使用するポリエチレン、接着剤、後述の外層４に使用する樹脂、難燃剤に応じて適切な厚さを選択すれば良い。 (Inner layer)
The inner layer 3 contains polyethylene and an adhesive.
The polyethylene used for the inner layer 3 is not particularly limited, and may be either high-density polyethylene (HDPE) or low-density polyethylene (LDPE), and an appropriate one may be selected according to the specifications of the electric wire 1. .
The adhesive used for the inner layer 3 is not particularly limited, and examples thereof include glycidyl methacrylate (GMA), vinyl acetate (VA), or a copolymer of methyl acrylate (MA). An appropriate adhesive may be selected according to the specifications of the electric wire 1, polyethylene used for the inner layer 3, compatibility with a resin used for the outer layer 3 described later, and the like.
The mass ratio (polyethylene: adhesive) of polyethylene and adhesive contained in the inner layer 3 is not particularly limited, but is preferably 4: 6 to 6: 4.
The inner layer 3 may contain an antioxidant.
The thickness of the inner layer 3 is preferably 0.04 mm to 0.06 mm. There is a limit to the thickness of the electric wire, and when the inner layer is thickened, the outer layer described later may have to be made thinner accordingly. In the electric wire of the present invention, when the outer layer becomes thin, the wear resistance and flame retardancy may not be sufficient. For this reason, the upper limit of the thickness of the inner layer is preferably 0.06 mm. In detail, what is necessary is just to select suitable thickness according to the specification of the electric wire 1, the polyethylene used for the above-mentioned inner layer 3, an adhesive agent, the resin used for the below-mentioned outer layer 4, and a flame retardant.

（外層）
外層４は、エンジニアリングプラスチックと難燃剤とを含有する。
外層４に使用するエンジニアリングプラスチックは、アミド結合、エステル結合またはウレタン結合のいずれか一つ以上を有する熱可塑性樹脂であることが好ましい。アミド結合、エステル結合またはウレタン結合のいずれか一つ以上を有する熱可塑性エラストマーであることがさらに好ましい。
外層４が含有するエンジニアリングプラスチックの含有量は、５０〜８６質量％であることが好ましく、７２〜８６質量％であることがより好ましい。 (Outer layer)
The outer layer 4 contains an engineering plastic and a flame retardant.
The engineering plastic used for the outer layer 4 is preferably a thermoplastic resin having any one or more of an amide bond, an ester bond and a urethane bond. It is more preferable that the thermoplastic elastomer has any one or more of an amide bond, an ester bond, and a urethane bond.
The content of the engineering plastic contained in the outer layer 4 is preferably 50 to 86% by mass, and more preferably 72 to 86% by mass.

外層４に使用する難燃剤は、例えば、金属水酸化物、窒素系難燃剤、リン系難燃剤、イントメッセント難燃剤が挙げられる。この難燃剤についても、電線１の仕様、前述の内層３に使用するポリエチレン、接着剤、外層４に使用するエンジニアリングプラスチックとの相性等に応じて適切なものを選択すれば良い。その中でも窒素系難燃剤やリン系難燃剤が好ましい。   Examples of the flame retardant used for the outer layer 4 include metal hydroxides, nitrogen-based flame retardants, phosphorus-based flame retardants, and intumescent flame retardants. As for the flame retardant, an appropriate one may be selected according to the specifications of the electric wire 1, the polyethylene used for the inner layer 3, the adhesive, the compatibility with the engineering plastic used for the outer layer 4, and the like. Of these, nitrogen-based flame retardants and phosphorus-based flame retardants are preferred.

また外層４には、酸化防止剤、イオン補足剤、加水分解抑制剤、エステル系滑剤、架橋助剤、色材等を含有していてもよい。
外層４の厚さは、導体外径により決まる絶縁層厚さから内層の厚さを引いた厚さである。 Further, the outer layer 4 may contain an antioxidant, an ion scavenger, a hydrolysis inhibitor, an ester lubricant, a crosslinking aid, a coloring material, and the like.
The thickness of the outer layer 4 is a thickness obtained by subtracting the thickness of the inner layer from the insulating layer thickness determined by the conductor outer diameter.

（導体）
導体２としては、一般的な銅線や銅合金線などが使用できる。
また導体２のサイズとしては、特に限定されず、電線１の使用形態、目的等により適宜選択されるべきものであるが、断面積として０．５〜２ｍｍ２のものが好ましい。 (conductor)
As the conductor 2, a general copper wire, a copper alloy wire, or the like can be used.
As the size of the conductor 2 is not particularly limited, use form of the electric wire 1, but is to be appropriately selected depending on the purpose or the like, those 0.5 to 2 mm 2 is preferred as the cross-sectional area.

（その他）
本発明の一形態である電線の用途としては、鉄道車両用の制御線に適用することが好ましい。
また、図１に示す実施形態の電線１においては、単線または撚線の導体２をコアとし、その周囲に内層３と外層４とを有するものとしたが、その他の形態を採っても良い。
例えば、図２に示すような、前述の実施形態の電線１と、電線１の周囲を覆う外部導体１１と、前記外部導体１１の周囲を覆う外被１２とを有するシールド電線１０の形態や、図３に示すような、前述の電線１を複数本有し、複数本の電線１の周囲を覆う一括シールド層２１と、前記一括シールド層２１の周囲を覆う外被２２とを有する多芯ケーブル２０の形態とすることもできる。 (Other)
As a use of the electric wire which is one form of this invention, it is preferable to apply to the control line for rail vehicles.
Moreover, in the electric wire 1 of embodiment shown in FIG. 1, although the conductor 2 of the single wire or the strand wire was used as the core and it had the inner layer 3 and the outer layer 4 in the circumference | surroundings, you may take another form.
For example, as shown in FIG. 2, the form of the shielded electric wire 10 having the electric wire 1 of the above-described embodiment, the outer conductor 11 that covers the periphery of the electric wire 1, and the jacket 12 that covers the outer periphery of the outer conductor 11, As shown in FIG. 3, a multicore cable having a plurality of the above-described electric wires 1 and having a collective shield layer 21 covering the periphery of the plurality of electric wires 1 and an outer cover 22 covering the periphery of the collective shield layer 21. Twenty forms are also possible.

以下、本発明に係る実施例及び比較例を用いた評価試験の結果を示し、本発明をさらに詳細に説明する。なお、本発明はこれら実施例に限定されるものではない。
［電線の作製］
導体に、下記表１の構成になるように、絶縁層を被覆して電線を作製した。
導体は、０．２５４ｍｍ径の錫メッキ軟銅線を１９本撚ったものであり、外径が１．２７０ｍｍ、断面積が０．９６３ｍｍ２であった。
この寸法の電線に対する絶縁層の厚さとしては、２層構造とする場合には、内層が０．０５０ｍｍ、外層が０．１７５ｍｍとし、単層構造とする場合には、０．２２５ｍｍとした。 Hereinafter, the results of evaluation tests using examples and comparative examples according to the present invention will be shown, and the present invention will be described in more detail. The present invention is not limited to these examples.
[Production of electric wire]
An electric wire was produced by covering the conductor with an insulating layer so as to have the configuration shown in Table 1 below.
The conductor was 19 twisted tin-plated annealed copper wires with a diameter of 0.254 mm, and had an outer diameter of 1.270 mm and a cross-sectional area of 0.963 mm 2 .
The thickness of the insulating layer for the electric wire having this dimension was set to 0.050 mm for the inner layer and 0.175 mm for the outer layer in the case of the two-layer structure, and 0.225 mm in the case of the single-layer structure.

［電線の評価］
作製した電線について、以下の方法で耐摩耗性、耐電圧性、難燃性を評価した。結果を下記表１に示す。
（耐摩耗性）
スクレープ摩耗試験：ＩＳＯ６７２２：２００６の規定に基づいてスクレープ摩耗試験を実施した。ブレード材料は、φ０．４５ｍｍのピアノ線とし、荷重は９Ｎとした。導体が露出するまでのブレードの往復移動回数を観察し、１５０回以上を合格、１５０回未満を不合格とした。結果を下記表１に示す。
（耐電圧性）
直流安定性（Ｄ．Ｃ．ｓｔａｂｉｌｉｔｙ）：８５℃、３％ＮａＣｌ水溶液中でＤＣ３００Ｖを２４０時間課電し、２４時間ごとに電流を計測し、さらにＡＣ２ｋＶの電圧を１分間かけ、絶縁破壊のないものをＡ、絶縁破壊のあったものをＢとした。結果を下記表１に示す。
（難燃性）
１条難燃試験：ＩＳＯ６７２２に準拠した４５度傾斜試験。自己消火したものを合格とした。結果を下記表１に示す。
なお、下記表１中、Ｎｏ．１〜９が実施例で、Ｎｏ．１０〜１２が比較例である。 [Evaluation of electric wires]
About the produced electric wire, abrasion resistance, withstand voltage property, and a flame retardance were evaluated with the following method. The results are shown in Table 1 below.
(Abrasion resistance)
Scrape abrasion test: A scrape abrasion test was performed based on the provisions of ISO 6722: 2006. The blade material was a piano wire of φ0.45 mm, and the load was 9N. The number of reciprocating movements of the blade until the conductor was exposed was observed, and 150 times or more was passed and less than 150 times was rejected. The results are shown in Table 1 below.
(Withstand voltage)
DC stability (DC stability): DC 300V is applied for 240 hours in 85% C, 3% NaCl aqueous solution, current is measured every 24 hours, voltage of AC 2 kV is applied for 1 minute, and there is no dielectric breakdown One was A, and one with dielectric breakdown was B. The results are shown in Table 1 below.
(Flame retardance)
1 flame retardant test: 45 degree inclination test based on ISO6722. Those that self-extinguished were considered acceptable. The results are shown in Table 1 below.
In Table 1 below, no. Nos. 1 to 9 are examples. 10 to 12 are comparative examples.

Figure 2016115510
Figure 2016115510

＊：表１中の絶縁層組成は、下記表２及び３に示す通りである。   *: The composition of the insulating layer in Table 1 is as shown in Tables 2 and 3 below.

Figure 2016115510
Figure 2016115510

Figure 2016115510
Figure 2016115510

表２及び表３において、数値の単位は、全て質量部である。   In Tables 2 and 3, all numerical units are parts by mass.

Ｎｏ．１〜９（実施例）は、耐摩耗性、耐電圧性、難燃性のいずれにおいても優れていた。Ｎｏ．１０（比較例）は内層に接着剤がない例であり、耐電圧性及び難燃性に優れていたが耐摩耗性が劣っていた。Ｎｏ．１１（比較例）は絶縁層を単層構造としてエンジニアリングプラスチックを使用した例であり、耐摩耗性及び難燃性に優れていたが耐電圧性が劣っていた。比較例３は絶縁層を単層構造としてポリエチレンを使用した例であり、耐電圧性に優れていたが耐摩耗性及び難燃性が劣っていた。   No. 1 to 9 (Examples) were excellent in all of wear resistance, voltage resistance and flame retardancy. No. No. 10 (Comparative Example) was an example in which there was no adhesive in the inner layer, and was excellent in voltage resistance and flame retardancy but inferior in wear resistance. No. 11 (Comparative Example) was an example in which an engineering plastic was used with an insulating layer having a single layer structure, which had excellent wear resistance and flame retardancy but was inferior in voltage resistance. Comparative Example 3 was an example in which polyethylene was used with an insulating layer having a single layer structure, and was excellent in voltage resistance but inferior in wear resistance and flame retardancy.

１ 電線
２ 導体
３ 内層
４ 外層
１０ シールド電線
１１ 外部導体
１２ 外被
２０ 多芯ケーブル
２１ 一括シールド層
２２ 外被
DESCRIPTION OF SYMBOLS 1 Electric wire 2 Conductor 3 Inner layer 4 Outer layer 10 Shielded electric wire 11 Outer conductor 12 Outer sheath 20 Multi-core cable 21 Collective shield layer 22 Outer sheath

Claims (7)

導体、前記導体を被覆する第１絶縁層、及び前記第１絶縁層を被覆する第２絶縁層を有する電線であって、
前記第１絶縁層が、ポリエチレンと接着剤とを含有し、
前記第２絶縁層が、エンジニアリングプラスチックと難燃剤とを含有し、
前記第１絶縁層及び第２絶縁層のいずれもが架橋されている、電線。 A conductor, a first insulating layer covering the conductor, and a second insulating layer covering the first insulating layer,
The first insulating layer contains polyethylene and an adhesive;
The second insulating layer contains an engineering plastic and a flame retardant;
An electric wire in which both the first insulating layer and the second insulating layer are cross-linked. 前記第１絶縁層が含有するポリエチレンと接着剤の質量比（ポリエチレン：接着剤）が、４：６〜６：４である請求項１に記載の電線。   The electric wire according to claim 1, wherein a mass ratio (polyethylene: adhesive) of polyethylene and adhesive contained in the first insulating layer is 4: 6 to 6: 4. 前記第２絶縁層におけるエンジニアリングプラスチックの含有量が５０〜８６質量％である請求項１又は請求項２に記載の電線。   The electric wire according to claim 1 or 2, wherein the content of the engineering plastic in the second insulating layer is 50 to 86 mass%. 前記導体の断面積が０．５ｍｍ２以上２．０ｍｍ２以下である請求項１から３のいずれか一項に記載の電線。 The electric wire according to any one of claims 1 to 3, wherein a cross-sectional area of the conductor is 0.5 mm 2 or more and 2.0 mm 2 or less. 前記第１絶縁層の厚さが０．０４ｍｍ以上０．０６ｍｍ以下である請求項１から４のいずれか一項に記載の電線。   The electric wire according to any one of claims 1 to 4, wherein the first insulating layer has a thickness of 0.04 mm to 0.06 mm. 請求項１〜請求項５のいずれか１項に記載の電線と、外部導体と、それらの周囲の外被とを有するシールド電線。   A shielded electric wire comprising the electric wire according to any one of claims 1 to 5, an outer conductor, and a jacket around them. 請求項１〜請求項５のいずれか１項に記載の電線を複数本有し、複数本の前記電線の周囲を覆う一括シールド層と、前記一括シールド層の周囲を覆う外被とを有する多芯ケーブル。   A plurality of electric wires according to any one of claims 1 to 5, comprising a collective shield layer covering the periphery of the plurality of electric wires and an outer covering covering the periphery of the collective shield layer. Core cable.
JP2014252781A 2014-12-15 2014-12-15 Electrical line, shield wire and multicore cable using it Pending JP2016115510A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014252781A JP2016115510A (en) 2014-12-15 2014-12-15 Electrical line, shield wire and multicore cable using it
CN201510926444.2A CN105702357B (en) 2014-12-15 2015-12-14 Electric wire, shielding wire and multicore cable using the electric wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014252781A JP2016115510A (en) 2014-12-15 2014-12-15 Electrical line, shield wire and multicore cable using it

Publications (1)

Publication Number Publication Date
JP2016115510A true JP2016115510A (en) 2016-06-23

Family

ID=56140060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014252781A Pending JP2016115510A (en) 2014-12-15 2014-12-15 Electrical line, shield wire and multicore cable using it

Country Status (2)

Country Link
JP (1) JP2016115510A (en)
CN (1) CN105702357B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118589178A (en) * 2024-06-28 2024-09-03 立则线缆(江苏)有限公司 Preparation method of high-temperature-resistant flame-retardant radio frequency coaxial cable

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107833688B (en) * 2016-09-15 2021-07-20 日立金属株式会社 Insulated wire
CN114556494B (en) * 2019-10-30 2024-09-17 住友电气工业株式会社 Electrical insulation cable

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2946789B1 (en) * 2009-06-11 2017-01-13 Nexans ELECTRICAL CABLE TO PROVIDE ELECTRICAL DISTRIBUTION CONTINUITY IN CASE OF FIRE.
JP5843151B2 (en) * 2011-12-21 2016-01-13 日立金属株式会社 Electric wire and cable using cross-linked resin composition
CN204010800U (en) * 2014-04-11 2014-12-10 常丰线缆有限公司 The crosslinked polyetylene insulated armored type fireproof cable of a kind of 35KV
CN203941761U (en) * 2014-05-21 2014-11-12 江阴市江南氟塑有限公司 A kind of high insulated shield cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118589178A (en) * 2024-06-28 2024-09-03 立则线缆(江苏)有限公司 Preparation method of high-temperature-resistant flame-retardant radio frequency coaxial cable

Also Published As

Publication number Publication date
CN105702357B (en) 2018-04-17
CN105702357A (en) 2016-06-22

Similar Documents

Publication Publication Date Title
KR101644791B1 (en) Charging cable for electronic vehicle and manufacturing method thereof
JP6720495B2 (en) Molded electric wire and molded cable, electric wire for molded electric wire and cable for molded cable
JP5227609B2 (en) High voltage electronics cable
JP2016115510A (en) Electrical line, shield wire and multicore cable using it
JP6424748B2 (en) Halogen free flame retardant insulated wire and halogen free flame retardant cable
JP5416484B2 (en) Automotive antenna coaxial cable
RU158299U1 (en) THREE-PHASE POWER CABLE WITH A GENERAL METAL SCREEN
JP2020053216A (en) Insulated wire
JP5592211B2 (en) Flame retardant resin composition, insulated wire and cable using the same
JP6638630B2 (en) Composition for wire covering material and insulated wire
JP2017069130A (en) Insulation wire
JP5202549B2 (en) Thin flame retardant wire
RU205425U1 (en) FIRE RESISTANT ELECTRIC CABLE
CN205582531U (en) 150kV high voltage DC flexible cable
RU168101U1 (en) MOUNTING CABLE FOR ROLLING COMPOSITION OF RAIL TRANSPORT
RU167551U1 (en) Control cable
RU182659U1 (en) CABLE FOR ROLLING COMPOSITION OF RAIL TRANSPORT
CN203746516U (en) Ageing resistant cable
RU102140U1 (en) POWER CABLE
JP2014154242A (en) Heat-resistant electric wire and multi-core cable
JP5556373B2 (en) cable
JP6179289B2 (en) cable
JP6239712B1 (en) Insulated wire
RU161782U1 (en) SCREEN CONTROL CABLE WITH REDUCED FIRE HAZARD WITH INSULATION AND HALOGEN-FREE SHELLS
JP2023069558A (en) Thick wire