CN209804323U - Digital cable with good fireproof effect - Google Patents

Abstract

The utility model discloses a digital cable that fireproof effect is good, eight conductors including four group's star distributions, every the outside of conductor has all wrapped up the insulating layer, every group the outside of the insulating layer of conductor has all wrapped up around the covering, four groups be provided with fire-retardant filler around the outside of covering, the outside of fire-retardant filler is provided with metallic shield, metallic shield's outside parcel has the flame retardant coating, the outside parcel of flame retardant coating has the armor, the outside parcel of armor has the restrictive coating. This digital cable that fireproof effect is good, fire-retardant fire behavior is good, can resist outside burning flame well, can win the valuable time for equipment personnel of speedily carrying out rescue work flees when the conflagration breaing out to prevent to lead to the conductor line to expose because of the long-time friction of cable, can be fine protect the cable, the holistic pliability of cable is stronger simultaneously, more does benefit to and lays.

Description

Digital cable with good fireproof effect

Technical Field

The utility model relates to a digital cable technical field specifically is a digital cable that fire prevention effect is good.

Background

with the rapid development of economic construction in China, electrification and network communication are continuously advanced. Therefore, a huge potential development space is brought to the market of the water-blocking digital cable, the digital cable bears important data, images and other information transmission tasks in a communication system and an engineering safety system, the digital cable is generally formed by stranding a plurality of or a plurality of groups of conducting wires, each group of conducting wires are mutually insulated and are usually twisted around a center, the outer layers of the conducting wires are usually coated with insulating layers, and the insulating layers are sheathed with sheaths to ensure that the conducting wires are not easily damaged.

The existing digital cable for communication is poor in heat resistance and fire resistance due to the structural reason of the cable, and once a fire disaster happens to a use place, the cable is easy to ignite, so that communication interruption is caused, toxic and harmful gas can be generated, and harm is caused to people.

SUMMERY OF THE UTILITY MODEL

technical problem to be solved

Not enough to prior art, the utility model provides a digital cable that fire prevention effect is good has solved the problem that the cable ignites easily.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a digital cable that fireproof effect is good, includes eight conductors of four groups star distributions, its characterized in that: every the outside of conductor has all wrapped up the insulating layer, every group the outside of the insulating layer of conductor has all wrapped up around the covering, four groups be provided with fire-retardant filler around the outside of covering, the outside of fire-retardant filler is provided with metallic shield, the outside parcel of metallic shield has the flame retardant coating, the outside parcel of flame retardant coating has the armor, the outside parcel of armor has the restrictive coating.

Preferably, the conductor is a copper wire, and the insulating layer is made of polyethylene material.

Preferably, the wrapping layer is a polyester tape.

preferably, the flame-retardant filler is flame-retardant and fireproof quartz fiber, and the metal shielding layer is a copper layer.

preferably, the bottom layer of the fire-proof layer is a ceramic silicon rubber layer, and the surface layer of the fire-proof layer is a ceramic fiber layer.

Preferably, the armor layer is an aluminum wire and polyester wire braid layer, and the sheath layer is a cross-linked polyethylene material.

(III) advantageous effects

The utility model provides a digital cable that fire prevention effect is good. The method has the following beneficial effects:

(1) This digital cable that fireproof effect is good adopts the polyethylene material through the insulating layer, and polyethylene has good low temperature resistance, and chemical stability is good, can be able to bear the erosion of most acid and alkali, and the hydroscopicity is little, and electrical insulation is good, and fire-retardant filler is fire-retardant fire prevention quartz fiber, and quartz fiber has heat-resisting, corrosion-resistant and compliance. High strength retention rate at high temperature, stable size, thermal shock resistance, chemical stability and good electrical insulation.

(2) This digital cable that fireproof effect is good, the bottom through the flame retardant coating is ceramic silicon rubber layer, and the top layer of flame retardant coating is ceramic fiber layer, ceramic silicon rubber material is a novel polymer refractory material, what present domestic and abroad adopted is the refractory cable of magnesium oxide mineral insulation fireproof cable and mica tape around the package, and ceramic silicon rubber refractory cable is a novel, safety, economic refractory cable, compare with traditional refractory cable with very big degree reduce cost, ceramic fiber is fibrous light refractory material, have light in weight, high temperature resistance, thermal stability is good, the heat conductivity is low, specific heat is little and advantages such as mechanical shock resistance, good high temperature insulation performance, long service life, and is nontoxic, harmless, do not have harmful effects to the environment, construction simple to operate.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention;

Fig. 2 is a schematic structural view of the fire-proof layer of the present invention.

In the figure: 1. a conductor; 2. an insulating layer; 3. wrapping a covering; 4. a flame retardant filler; 5. a metal shielding layer; 6. a fire barrier layer; 61. a ceramic fiber layer; 62. a silicon rubber layer is ceramic; 7. an armor layer; 8. a sheath layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model provides a technical solution: a digital cable with a good fireproof effect comprises four groups of eight conductors 1 distributed in a star shape, wherein an insulating layer 2 wraps the outside of each conductor 1, a wrapping layer 3 wraps the outside of the insulating layer 2 of each group of conductors 1, flame-retardant fillers 4 are arranged on the outside of the four groups of wrapping layers 3, a metal shielding layer 5 is arranged on the outside of the flame-retardant fillers 4, a fireproof layer 6 wraps the outside of the metal shielding layer 5, an armor layer 7 wraps the outside of the fireproof layer 6, and a sheath layer 8 wraps the outside of the armor layer 7;

The conductor 1 is a copper wire, and the insulating layer 2 is made of polyethylene material;

The wrapping layer 3 is a polyester tape;

The flame-retardant filler 4 is flame-retardant fireproof quartz fiber, and the metal shielding layer 5 is a copper layer;

the bottom layer of the fireproof layer 6 is a ceramic silicon rubber layer 62, and the surface layer of the fireproof layer is a ceramic fiber layer 61;

The armor layer 7 is an aluminum wire and polyester wire braided layer, and the sheath layer 8 is a cross-linked polyethylene material.

In conclusion, the digital cable with the good fireproof effect is firm and durable because the wrapping layer is the polyester belt, the polyester belt has high strength and elastic recovery capability, the metal shielding layer is the copper belt, the anti-interference capability of the cable is enhanced, the transmission signal is clear and has small distortion, the structure is simple, the realization is easy, the sheath layer is made of the cross-linked polyethylene material, and the cross-linked polyethylene has the advantages of simple structure, light weight, good heat resistance, strong load capacity, no melting, chemical corrosion resistance and high mechanical strength.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a digital cable that fire prevention effect is good, includes eight conductors (1) that four groups star distributes, its characterized in that: every the outside of conductor (1) all wraps up has insulating layer (2), every group the outside of insulating layer (2) of conductor (1) all wraps up around covering (3), four groups be provided with fire-retardant filler (4) around the outside of covering (3), the outside of fire-retardant filler (4) is provided with metallic shield (5), the outside parcel of metallic shield (5) has flame retardant coating (6), the outside parcel of flame retardant coating (6) has armor (7), the outside parcel of armor (7) has restrictive coating (8).

2. The digital cable with good fireproof effect according to claim 1, wherein: the conductor (1) is a copper wire, and the insulating layer (2) is made of polyethylene materials.

3. The digital cable with good fireproof effect according to claim 1, wherein: the wrapping layer (3) is a polyester tape.

4. The digital cable with good fireproof effect according to claim 1, wherein: the flame-retardant filler (4) is flame-retardant fireproof quartz fiber, and the metal shielding layer (5) is a copper layer.

5. The digital cable with good fireproof effect according to claim 1, wherein: the bottom layer of the fireproof layer (6) is a ceramic silicon rubber layer (62), and the surface layer of the fireproof layer is a ceramic fiber layer (61).

6. The digital cable with good fireproof effect according to claim 1, wherein: the armor layer (7) is an aluminum wire and polyester wire braided layer, and the sheath layer (8) is a cross-linked polyethylene material.