CN201364749Y

CN201364749Y - Light type military wire

Info

Publication number: CN201364749Y
Application number: CNU200920142716XU
Authority: CN
Inventors: 汤传盛; 常峻; 刘玉明; 黄军
Original assignee: Anhui Wuzhou Special Cable Group Co Ltd
Current assignee: Anhui Wuzhou Special Cable Group Co Ltd
Priority date: 2009-01-14
Filing date: 2009-01-14
Publication date: 2009-12-16
Anticipated expiration: 2019-01-14

Abstract

The utility model relates to a light type military wire, which comprises a conductive wire core formed by twisting single or multiple tin-plated copper fine wires, an insulation layer extruded outside the conductive wire core, and an outer sheath layer. The light type military wire is characterized in that the insulation layer is a thin-walled layer which takes polyetherimide as material, and the outer sheath layer is the thin-walled layer which takes polyurethane as the material. The light type military wire can have the comprehensive performances of high/low temperature resistance, moisture resistance, weathering resistance, aging resistance, thin insulation, thin sheath, softness and the like, be applicable to a variety of different working environments and be suitable for being taken as a military cable.

Description

A kind of light military electric wire

Technical field

The utility model relates to a kind of field cable, relates in particular to a kind of military lightweight cable, belongs to technical field of electric wires and cables.

Background technology

Military industry equipment has requirements such as volume is little, in light weight along with the raising requirement of equipment performance to special installation.As military electric equipment, instrument and meter connecting line, that cube is little, to adapt to all kinds of adverse circumstances, ampacity big and to bear overload capacity strong, and require cable to have the favorable mechanical physical property.But existing normal cable can not satisfy this requirement.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, provide a kind of and can possess combination properties such as anti-high/low temperature, moisture-proof, weather-proof, ageing-resistant, thin insulating, thin sheath and softness, can adapt to a kind of light military electric wire of multiple different operational environment.

The utility model technical solution problem adopts following technical scheme: the utility model light military electric wire has the conductor wire core that is twisted into by single or many tin-coated copper filaments, is extruded in conductor wire core outer insulating barrier and external sheath layer; Its design feature is that described insulating barrier is to be the thin-walled layer of material with the Polyetherimide; Described external sheath layer is to be the thin-walled layer of material with polyurethane.

Design feature of the present utility model also is: described conductor wire core adopts many zinc-plated soft copper monofilament conductors, and conductor is chosen as the 1st class or the 2nd class conductor that meets GB/T3956; Described conductor wire core adopts regular lay configuration, and the twisted wire pitch is in 12 times.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the utility model adopts the tin-coated copper conductor, can prevent the aging catalytic action of copper conductor to insulating barrier effectively, to guarantee the useful life of insulating barrier.Simultaneously, conductive surface is zinc-plated also to have the oxidation that prevents conductor itself, increases the security reliability in the use.

2, insulating material adopts Polyetherimide to have the chemical resistance of wide range in the utility model, comprises anti-most hydrocarbon, alcohols and all halogenated solvents.It also has following performance:

(1) its good electric property and mechanical performance satisfy the requirement of low-voltage cable fully;

(2) and have good flame retardancy, oxygen index reaches 48, is higher than common fire proofing far away;

(3) have well low smoke density, environmental-protecting performance satisfies the European Union environmental protection command request fully;

(4) have chemical substances such as favorable chemical resistance energy, ability mineral oil, soda acid, ozone;

(5) have resistance to elevated temperatures, the nominal operation temperature reaches 130 ℃～150 ℃.

3, the external sheath layer in the utility model adopts polyurethane material, and its advantage comprises:

(1) under the certain environment condition, ageing hardening unlike PVC can not wear out and stress cracking as PE yet, causes the electric property of cable and environmental resistance to descend;

(2) wear-resisting, soft, characteristics that weather resisteant is good with rubber one parent are arranged, but processing technology is much simpler than rubber, can adds hot-extrudablely, and need not vulcanize as materials such as PVC, PE;

(3) under-60 ℃ of low temperature, still can keep good bending property, even cracking can not appear in less bending radius yet;

4, polyetherimide material and polyurethane material realize easily that all thin wall type extrudes in the utility model.

Description of drawings

Fig. 1 is the utility model structural representation.

Number in the figure: 1 conductor thread core; 2 insulating barriers; 3 restrictive coatings.

Below by embodiment, the utility model is described in further detail in conjunction with the accompanying drawings.

Embodiment

Referring to Fig. 1, present embodiment is with single or many conductor wire cores 1 that the tin-coated copper filament is twisted into, and squeezes insulating barrier 2 on conductor wire core 1, and extrudes external sheath layer 3 at skin; Wherein, insulating barrier 2 is to be the thin-walled layer of material with the Polyetherimide; External sheath layer 3 is to be the thin-walled layer of material with polyurethane.

In concrete the enforcement, conductor adopts many zinc-plated soft copper monofilament, and conductor is chosen as the 1st class or the 2nd class conductor that meets GB/T3956.

Conductor wire core adopts regular lay configuration, and the twisted wire pitch has flexibility surface rounding property preferably to guarantee conductor in 12 times, insulating barrier is easily peeled off.

Table 1

Nominal cross mm ²	0.12	0.2	0.3	0.5	0.75	1.0	1.2
Nominal cross mm ²	0.12	0.2	0.3	0.5	0.75	1.0	1.2	Insulating barrier mm	0.15	0.15	0.15	0.15	0.15	0.15	0.15
Restrictive coating mm	0.15	0.15	0.15	0.2	0.2	0.2	0.2	Insulating barrier mm	0.15	0.15	0.15	0.15	0.15	0.15	0.15
Restrictive coating mm	0.15	0.15	0.15	0.2	0.2	0.2	0.2	Nominal cross mm ²	1.5	2.0	2.5	3.0	4.0	5.0	6.0
Insulating barrier mm	0.15	0.15	0.15	0.15	0.2	0.2	0.2	Nominal cross mm ²	1.5	2.0	2.5	3.0	4.0	5.0	6.0
Insulating barrier mm	0.15	0.15	0.15	0.15	0.2	0.2	0.2	Restrictive coating mm	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Nominal cross mm ²	10	16	25	35	50	70	95	Restrictive coating mm	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Nominal cross mm ²	10	16	25	35	50	70	95	Insulating barrier mm	0.3	0.3	0.4	0.4	0.5	0.5	0.5
Restrictive coating mm	0.5	0.6	0.8	1.0	1.2	1.4	1.4	Insulating barrier mm	0.3	0.3	0.4	0.4	0.5	0.5	0.5

In concrete the enforcement, the thickness and the structure setting of insulating barrier 2 and external sheath layer 3 can be listed by table 1.

Claims

1, a kind of light military electric wire, have the conductor wire core (1) that is twisted into by single or many tin-coated copper filaments, be extruded in conductor wire core outer insulating barrier (2) and external sheath layer (3), it is characterized in that described insulating barrier (2) is is the thin-walled layer of material with the Polyetherimide; Described external sheath layer (3) is to be the thin-walled layer of material with polyurethane.

2, light military electric wire according to claim 1 is characterized in that described conductor wire core (1) adopts many zinc-plated soft copper monofilament conductors, and conductor is chosen as the 1st class or the 2nd class conductor that meets GB/T3956.

3, light military electric wire according to claim 1 is characterized in that described conductor wire core (1) adopts regular lay configuration, and the twisted wire pitch is in 12 times.