CN206388530U

CN206388530U - A kind of anti-interference fireproof cable

Info

Publication number: CN206388530U
Application number: CN201621419541.9U
Authority: CN
Inventors: 孙清昌
Original assignee: Shandong Crown Cable Co Ltd
Current assignee: Shandong Crown Cable Co Ltd
Priority date: 2016-12-23
Filing date: 2016-12-23
Publication date: 2017-08-08
Anticipated expiration: 2026-12-23

Abstract

The utility model provides a kind of anti-interference fireproof cable, the problem of anti-interference existing cable and not good flameproof effect can be solved, including many cores being mutually adjacent to, the filling bed of material is enclosed with successively on the outside of the core, inner insulating layer, screen layer, insulating outer layer and outer jacket, the filling bed of material is ceramic low smoke, zero halogen polyolefin flame-retardant fireproof oxygen-separation material, the inner insulating layer is low smoke and zero halogen cross-linked polyethylene insulating material, the thickness of the inner insulating layer is 0.5 0.6mm, the screen layer is steel strand wires, the insulating outer layer is polytetrafluoroethylene film, its thickness is 0.2 0.3mm, the outer jacket is polytetrafluoroethylene (PTFE), its thickness is 0.4 0.5mm, one layer of conductor screen is also enclosed with outside the core, play dual shield, anti-jamming effectiveness is good, simultaneously, flameproof effect is notable.

Description

A kind of anti-interference fireproof cable

Technical field

The utility model is related to field of cables, particularly a kind of anti-interference fireproof cable.

Background technology

At present, with the development of science and technology, the field such as industry is also in rapid advances, and what is brought therewith is cable consumption Increase, cable is typically the cable for having several or at least two stranded similar ropes of several groups of every group of wires, every group of wire Between mutually insulated, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation, the species of cable has very Many, it is different that can apply the use environment in many fields and in different fields, therefore is also had not to cable Same requirement, but existing cable can not play the effect of shielding because its structure design is unreasonable, outer signals are easy to It is interfered, the situation of information loss is brought it about, secondly, the fire prevention of the design requirement of cable, how to allow cable have compared with Good anti-interference and flameproof effect, is to need each producer to consider.

The content of the invention

In order to solve prior art problem, the utility model provides a kind of anti-interference fireproof cable, can play well Anti-Jamming, meanwhile, flameproof effect is notable.

To achieve the above object, technical scheme provided by the utility model is：A kind of anti-interference fireproof cable, its feature It is：Including many cores being mutually adjacent to, the filling bed of material, inner insulating layer, screen layer, absolutely are enclosed with the outside of the core successively Edge outer layer and outer jacket, the filling bed of material are ceramic low smoke, zero halogen polyolefin flame-retardant fireproof oxygen-separation material, the inner insulating layer For low smoke and zero halogen cross-linked polyethylene insulating material, the thickness of the inner insulating layer is 0.5-0.6mm, and the screen layer is steel strand wires, The insulating outer layer is polytetrafluoroethylene film, and its thickness is 0.2-0.3mm, and the outer jacket is polytetrafluoroethylene (PTFE), its thickness For 0.4-0.5mm.

Preferably, the core includes conductor, true qualities insulating barrier, color separation insulating barrier and conductor screen from the inside to the outside, The conductor is tinned copper wire, and the thickness of the true qualities insulating barrier is 0.5-0.7mm, and the thickness of the color separation insulating barrier is 0.2- 0.3mm, the conductor screen is steel strand wires.

Preferably, the true qualities insulating barrier uses true qualities Insulation Material, and color separation insulating barrier is using coloring Insulation Material.

Preferably, the true qualities insulating barrier and color separation insulating barrier are processed using double-layer coextrusion mode.

Preferably, in 1kv, under the conditions of 20 DEG C, the insulation specific insulation of the true qualities insulating barrier is more than 1 * 10¹⁶Ω cm。

Preferably, the core is three.

The utility model has the advantages that：

The utility model is wrapped with a screen layer in every core, is wrapped up again outside cable using double layer screen layer There is an other screen layer, double layer screen can reach preferable anti-jamming effectiveness, in addition, using ceramic low smoke, zero halogen polyene Hydrocarbon flame-retardant oxygen barrier material can preferably play flameproof effect, the high true qualities insulating barrier of resistivity prevents electricity as the filling bed of material Field breakdown, outer jacket uses polytetrafluoroethylmaterial material, and polytetrafluoroethylene (PTFE) has excellent chemical stability, corrosion resistance, sealing Property, high lubrication non-stick, electrical insulating property and good anti-aging endurance, meanwhile, core of the present utility model employ it is double-deck altogether The technology of squeezing, greatlys save materials, and the utility model has the advantages that reasonable in design, anti-interference and fire prevention.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

In figure：1- cores, the 2- filling bed of materials, 3- inner insulating layers, 4- screen layers, 5- insulating outer layers, 6- outer jackets, 11- lines Core screen layer, 12- color separation insulating barriers, 13- true qualities insulating barriers, 14- conductors.

Embodiment

Below in conjunction with the accompanying drawings and specific embodiment, the utility model will be further described：

Reference picture 1, a kind of anti-interference fireproof cable, including many cores 1 being mutually adjacent to, preferably three, three institutes State it is circumscribed two-by-two between core 1 be close together, three outsides of cores 1 are enclosed with the filling bed of material 2, inner insulating layer 3, screen successively Layer 4, insulating outer layer 5 and outer jacket 6 are covered, the filling bed of material 2 is ceramic low smoke, zero halogen polyolefin flame-retardant fireproof oxygen-separation material, institute State the filling bed of material 2 to be bundled together three cores 1, form a circular cross-section, the filling bed of material 2 is wrapped with inner insulating layer 3, The inner insulating layer 3 is low smoke and zero halogen cross-linked polyethylene insulating material, and the thickness of the inner insulating layer 3 is 0.5-0.6mm, is preferably 0.5mm, inner insulating layer 3 is wrapped with the screen layer 4, and the screen layer 4 is steel strand wires, and screen layer 4 plays the screen of first layer The effect of covering, screen layer 4 is wrapped with the insulating outer layer 5, and the insulating outer layer 5 is polytetrafluoroethylene film, and its thickness is 0.2-0.3mm, preferably 0.2mm, the insulating outer layer 5 are wrapped with the outer jacket 6 for polytetrafluoroethylene (PTFE), and its thickness is 0.4-0.5mm, preferably 0.4mm.

Specifically, the core 1 includes conductor 14, true qualities insulating barrier 13, color separation insulating barrier 12 and core from the inside to the outside Screen layer 11, the conductor 14 is tinned copper wire, and the conductor 14 can be seized for solid or many thin tinned copper wire and formed, The thickness of the true qualities insulating barrier 13 is 0.5-0.7mm, preferably 0.7mm, and the thickness of the color separation insulating barrier 12 is 0.2- 0.3mm, preferably 0.2mm, the conductor screen 11 are steel strand wires, and every core 1 all has conductor screen 11, plays the Two layers of shielding action.

Specifically, the true qualities insulating barrier 13 uses true qualities Insulation Material, color separation insulating barrier 12 is described using coloring Insulation Material True qualities insulating barrier 13 and color separation insulating barrier 12 are processed using double-layer coextrusion mode, and true qualities insulating barrier 13 is general, color separation insulation Layer 12 is with requiring turn colors；Head is squeezed to the main extrusion molding of extrusion molding production line slightly to reequip, and installs twin-screw auxiliary extruding machine, or two additional Platform common compact molding machine, to intersect change of current technique, can realize in moment and not shut down, outer layer colour switching, using double-layer coextrusion side Formula is processed, and can not only greatly save the production time, and can greatly save the materials of color separation insulating barrier 12.

In addition, under the conditions of 1kv, 20 DEG C, the insulation specific insulation of the true qualities insulating barrier 13 is more than 1 * 10¹⁶Ω Cm, it is ensured that the insulation effect of every core 1, prevents electric field breakdown.

The utility model is wrapped with a conductor screen 11, in cable sheet using double layer screen layer in every core 1 An other screen layer 4 is enclosed with body again, double layer screen can reach preferable anti-jamming effectiveness, in addition, using ceramic without The low cigarette polyolefin flame-retardant fireproof oxygen-separation material of halogen can preferably play flameproof effect as the filling bed of material 2, meanwhile, the utility model Core employ double-layer coextrusion technology, greatly save materials, the utility model has reasonable in design, anti-interference and anti- Fiery the advantages of.

Examples of implementation described above are only the preferred embodiment of the utility model, not limit of the present utility model with this Practical range, therefore the change that all shape, principles according to the utility model are made, all should cover in protection domain of the present utility model It is interior.

Claims

1. a kind of anti-interference fireproof cable, including many cores being mutually adjacent to（1）, it is characterised in that：The many cores（1） Outside is enclosed with the filling bed of material successively（2）, inner insulating layer（3）, screen layer（4）, insulating outer layer（5）And outer jacket（6）, it is described to fill out Charge layer（2）For ceramic low smoke, zero halogen polyolefin flame-retardant fireproof oxygen-separation material, the inner insulating layer（3）It is poly- for low smoke and zero halogen crosslinking Ethene Insulation Material, the inner insulating layer（3）Thickness be 0.5-0.6mm, the screen layer（4）For steel strand wires, outside the insulation Layer（5）For polytetrafluoroethylene film, its thickness is 0.2-0.3mm, the outer jacket（6）For polytetrafluoroethylene (PTFE), its thickness is 0.4-0.5mm。

2. anti-interference fireproof cable according to claim 1, it is characterised in that：The core（1）Include from the inside to the outside Conductor（14）, true qualities insulating barrier（13）, color separation insulating barrier（12）And conductor screen（11）, the conductor（14）For tin-coated copper Silk, the true qualities insulating barrier（13）Thickness be 0.5-0.7mm, the color separation insulating barrier（12）Thickness be 0.2-0.3mm, institute State conductor screen（11）For steel strand wires.

3. anti-interference fireproof cable according to claim 2, it is characterised in that：The true qualities insulating barrier（13）Using true qualities Insulation Material, color separation insulating barrier（12）Using coloring Insulation Material.

4. the anti-interference fireproof cable according to Claims 2 or 3, it is characterised in that：The true qualities insulating barrier（13）With point Color insulating barrier（12）Processed using double-layer coextrusion mode.

5. anti-interference fireproof cable according to claim 4, it is characterised in that：Under the conditions of 1kv, 20 DEG C, the true qualities Insulating barrier（13）Insulation specific insulation be more than 1 * 10¹⁶Ωcm。

6. anti-interference fireproof cable according to claim 1, it is characterised in that：The core（1）For three.