CN209249167U

CN209249167U - Copper core silane crosslinked insulating environment-friendly type twisted pair

Info

Publication number: CN209249167U
Application number: CN201821130820.2U
Authority: CN
Inventors: 陶杏; 王天石; 李金堂; 郭涵; 沈小龙
Original assignee: Zhejiang Wanma Co Ltd
Current assignee: Zhejiang Wanma Co Ltd
Priority date: 2018-07-17
Filing date: 2018-07-17
Publication date: 2019-08-13
Anticipated expiration: 2028-07-17

Abstract

The utility model relates to a kind of copper core silane crosslinked insulating environment-friendly type twisted pairs, solve the deficiencies in the prior art, technical solution are as follows: including two strands of single lines, the mutual twisting of two strands of single lines, the single line includes conductor and insulating layer, insulating layer is packaged in the outside of the conductor, and the insulating layer is 105 degree of silane crosslinked halogen-free low-smoke flame-proof polyolefin insulating layers, and the conductor is 5 class flexible conductors.

Description

Copper core silane crosslinked insulating environment-friendly type twisted pair

Technical field

The utility model relates to a kind of electric wires, and in particular to a kind of copper core silane crosslinked insulating environment-friendly type twisted pair.

Background technique

Twisted pair plays an important role in life, and such as fire fire-fighting automatic alarm system, principle is that fire occurs Smog or temperature when calamity have been sensed by equipment sense cigarette or temperature detector to be started to alarm, while the alarm system starting that also linked is gone out Fiery system, reduces Loss of Life and property.Existing twisted pair insulating materials is all polyvinyl chloride insulation, and polyvinyl chloride contains greatly The halogen of amount, when burning, damage human body and important instrument, and halogen acid gas encounters water and forms acidic liquid to precision instrument Cause secondary hazards, cause a hidden trouble to safety and have been unable to meet the demand of current economic fast development, at present twisted pair generally by Conductor and insulation composition.Conductor is stranded copper wire composition, and insulation uses polyvinyl chloride insulation.Insulation uses polyvinyl chloride insulation, Polyvinyl chloride contains a large amount of halogen, and when burning damages human body and important instrument, and halogen acid gas encounters water and forms acidity Liquid causes secondary hazards to precision instrument.

Utility model content

There is insulation utility model aims to solve the above-mentioned prior art and uses polyvinyl chloride insulation, polyvinyl chloride Containing a large amount of halogen, when burning, damages human body and important instrument, and halogen acid gas encounters water and forms acidic liquid to essence The problem of close instrument causes secondary hazards provides a kind of copper core silane crosslinked insulating environment-friendly type twisted pair.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of copper core silane crosslinked insulating environment-friendly type Twisted pair, it is characterised in that: including two strands of single lines, the mutual twisting of two strands of single lines, the single line include conductor and absolutely Edge layer, insulating layer are packaged in the outside of the conductor, and the insulating layer is that 105 degree of silane crosslinked halogen-free low-smoke flame-proof polyolefins are exhausted Edge layer, the conductor are 5 class flexible conductors.

The utility model cable is made of soft copper conductor and insulating layer.Conductor uses 5 class flexible conductor structures, and insulation uses 105 degree of silane crosslinked halogen-free low-smoke flame-proof polyolefin Insulation Materials, two insulated wire cores are formed by certain pitch pair twist.Cable tool There is the characteristic of LSOH anti-flaming.Working principle and purposes: twisted pair is that most common transmission is situated between in a kind of generic cabling engineering Matter provides power transmission and signal control, the copper conductor of two eradication edge is twisted mutually together by a constant pitch, each conducting wire The electric wave that the electric wave radiated in the transmission can be issued on another single line is offset, and the degree of signal interference is effectively reduced.It is chiefly used in The detector lines of fire automatic alarm system are suitable for household electrical appliance, small-sized electric tool, instrument and meter and power and shine It is bright to use line.

Preferably, 105 degree of silane crosslinked halogen-free low-smoke and flame retardants that the insulating layer is ac voltage withstanding 2500V/5min are poly- Alkene insulating layer.

Preferably, the single line is the mechanical pressure 0.20MPa condition at 200 ± 3 DEG C of temperature, load-time 15min Under, elongation≤175% under load, the single line of elongation≤25% after cooling.

Preferably, the single line is the single line of value >=4.3 PH, conductivity≤10 μ s/mm and light transmittance >=60%.

Preferably, further including having glass fiber, two strands of single lines are twisted on glass fiber, the glass Filametntary line footpath is less than or equal to the line footpath of the conductor.

The substantial effect of the utility model is: the utility model cable is made of soft copper conductor and insulating layer.Conductor is adopted With 5 class flexible conductor structures, insulation uses 105 degree of silane crosslinked halogen-free low-smoke flame-proof polyolefin Insulation Materials, and two insulated wire cores press one Fixed pitch pair twist forms.The cable has the characteristic of LSOH anti-flaming.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model.

In figure: 1, conductor, 2, insulating layer.

Specific embodiment

Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model is made further specifically It is bright.

Embodiment 1:

A kind of copper core silane crosslinked insulating environment-friendly type twisted pair (referring to attached drawing 1), including two strands of single lines, two strands of single lines Mutual twisting, the single line include conductor 1 and insulating layer 2, and insulating layer is packaged in the outside of the conductor, the insulating layer For 105 degree of silane crosslinked halogen-free low-smoke flame-proof polyolefin insulating layers, the conductor is 5 class flexible conductors.Reach following requirements:

1,20 DEG C of conductor when D.C. resistance meet in GB3956-2008 5 class conductors and provide；

2, pressure test: exchange 2500V/5min does not puncture

3, twisted pair has ageing-resistant performance.I.e. (200 ± 3 DEG C of temperature, load-time 15min, mechanical pressure Under the conditions of 0.20MPa), elongation≤175% under load, elongation≤25% after cooling.

4, low smoke, zero halogen performance: value >=4.3 PH, conductivity≤10 μ s/mm, light transmittance >=60%

5, vertical combustion performance: meet the requirement of 19666 standard of GB/T.

The present embodiment uses 105 DEG C of silane crosslinked halogen-free low-smoke flame-proof polyolefin Insulation Materials, carries out steam after the extrusion molding that insulate Crosslinking is that (70 ± 5) are placed 3 hours in temperature, achievees the purpose that crosslinking.Heat extends index after crosslinking: in (temperature 200 ± 3 DEG C, load-time 15min, mechanical pressure 0.20MPa) under the conditions of, elongation≤175% under load, elongation after cooling ≤ 25%, while there is low-smoke non-halogen flame-retardant performance.

Embodiment 2:

The present embodiment is substantially the same manner as Example 1, the difference is that, it further include having glass fiber in the present embodiment, Two strands of single lines are twisted on the glass fiber placed with form of straight lines, and the line footpath of the glass fiber is less than or equal to The line footpath of the conductor.

Embodiment described above is a kind of preferable scheme of the utility model, is not made to the utility model any Formal limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.

Claims

1. a kind of copper core silane crosslinked insulating environment-friendly type twisted pair, it is characterised in that: including two strands of single lines, two bursts of single line phases Mutual twisting, the single line include conductor and insulating layer, and insulating layer is packaged in the outside of the conductor, and the insulating layer is 105 degree of silane crosslinked halogen-free low-smoke flame-proof polyolefin insulating layers, the conductor are 5 class flexible conductors；It further include having glass fibre Silk, two strands of single lines are twisted on glass fiber, and the line footpath of the glass fiber is less than or equal to the line of the conductor Diameter.

2. copper core silane crosslinked insulating environment-friendly type twisted pair according to claim 1, it is characterised in that: the insulating layer is 105 degree of silane crosslinked halogen-free low-smoke flame-proof polyolefin insulating layers of ac voltage withstanding 2500V/5min.

3. copper core silane crosslinked insulating environment-friendly type twisted pair according to claim 1, it is characterised in that: the single line be 200 ± 3 DEG C of temperature, under the conditions of load-time 15min, mechanical pressure 0.20MPa, elongation≤175% under load, after cooling Elongation≤25% single line.

4. copper core silane crosslinked insulating environment-friendly type twisted pair according to claim 1, it is characterised in that: the single line is PH The single line of value >=4.3, conductivity≤10 μ s/mm and light transmittance >=60%.