CN211879038U

CN211879038U - Plastic insulating flame-retardant anti-interference control cable

Info

Publication number: CN211879038U
Application number: CN202020400243.5U
Authority: CN
Inventors: 王国新; 杨忠兴; 吴荣毓
Original assignee: Yunnan Juli Cable Co ltd
Current assignee: Yunnan Juli Cable Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-11-06
Anticipated expiration: 2030-03-26

Abstract

The utility model discloses a fire-retardant anti-interference control cable of plastics insulation, including the cable core, the outer lane fixedly connected with insulating cover of cable core, band in the outside fixedly connected with of insulating cover, the inner circle of interior band and the outside packing that is located insulating cover have first filling layer, the outer band of outside fixedly connected with in interior band, the outside packing that the inner circle of outer band and is located interior band has second filler, the outer lane fixedly connected with shielding layer in outer band. The utility model discloses a set up cable core, insulating cover, first filling layer, second filler, outer wrapping tape, shielding layer, steel band armor, sheath, mica tape layer, adhesive, packing flame retardant coating and interior wrapping tape cooperation and use, have the advantage that the interference killing feature is good and the fire resistance is good, it is relatively poor to have solved current control cable interference killing feature, and electrical interference is more serious between the cable core, and the fire resistance is general, has reduced the problem of control cable practicality.

Description

Plastic insulating flame-retardant anti-interference control cable

Technical Field

The utility model relates to a control cable technical field specifically is a fire-retardant anti-interference control cable of plastics insulation.

Background

The control cable is a polyvinyl chloride insulation and polyvinyl chloride sheath control cable suitable for industrial and mining enterprises, energy traffic departments, occasions of controlling and protecting circuits under the alternating current rated voltage of 450/750V and the like, and can be laid in tunnels or cable trenches.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant anti-interference control cable of plastics insulation possesses the advantage that the interference killing feature is good and the fire resistance is good, and it is relatively poor to have solved current control cable interference killing feature, and electrical interference is more serious between the cable core, and the fire resistance is general, has reduced the problem of control cable practicality.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant anti-interference control cable of plastics insulation, includes the cable core, the outer lane fixedly connected with insulating sleeve of cable core, band in the outside fixedly connected with of insulating sleeve, the inner circle of interior band and the outside packing that is located insulating sleeve have first filling layer, the outside outer band of fixedly connected with of interior band, the inner circle of outer band and the outside packing that is located interior band have the second filler, the outer lane fixedly connected with shielding layer of outer band, the outside fixedly connected with fire-retardant layer of shielding layer, fire-retardant layer includes mica band layer, adhesive and the fire-retardant layer of packing, one side fixedly connected with steel band armor of shielding layer is kept away from to fire-retardant layer, the outer lane fixedly connected with sheath of steel band armor.

Preferably, the inner ring of the mica tape layer is bonded and connected with the outer ring filled with the flame-retardant layer through an adhesive, and the material of the adhesive is an organic silicon adhesive.

Preferably, the outer bag belt and the inner bag belt are made of the same materials and are made of non-woven fabrics, and the number of the inner bag belt is four.

Preferably, the number of the cable cores is eight, and two adjacent cable cores are woven by twisted pairs.

Preferably, the first filling layer is made by mixing PP ropes, the second filling material is made by mixing glass fibers, the insulating sleeve is made of polyperfluorinated ethylene propylene, the shielding layer is made of conductive rubber, and the filling flame-retardant layer is made of a magnesium hydroxide composite flame retardant.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up cable core, insulating cover, first filling layer, second filler, outer wrapping tape, shielding layer, steel band armor, sheath, mica tape layer, adhesive, packing flame retardant coating and interior wrapping tape cooperation and use, have the advantage that the interference killing feature is good and the fire resistance is good, it is relatively poor to have solved current control cable interference killing feature, and electrical interference is more serious between the cable core, and the fire resistance is general, has reduced the problem of control cable practicality.

2. The utility model discloses a set up the insulating boot, have good chemical inertia and the advantage of not firing, can play good insulation protection's effect, and supplementary prevention flame's diffusion, through setting up first filling layer and second filler, can play the tensile effect of certain degree, through setting up outer band and interior band, can be convenient for the shaping of cable, through setting up the shielding layer, have sealed and electromagnetic shield's advantage, can prevent the infiltration of external gas, and play the anti-interference effect of shielding, through setting up the mica tape layer, have good high temperature resistant and resistant burning's performance, can play good fire-retardant efficiency, through setting up the adhesive, have excellent cold-proof and hot, ageing-resistant and electrical insulation performance, can stable connection mica tape layer and fill fire-retardant layer, through setting up and filling fire-retardant layer, have pyrolysis water and nontoxic harmless advantage, can have good flame-retardant effect and has the effect of auxiliary fire extinguishing at high temperature.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is the schematic view of the cross-sectional structure of the flame retardant layer of the present invention.

In the figure: the cable comprises a cable core 1, an insulating sleeve 2, a first filling layer 3, a second filling material 4, an outer wrapping tape 5, a shielding layer 6, a flame-retardant layer 7, a steel tape armoring layer 8, a sheath 9, a mica tape layer 10, an adhesive 11, a flame-retardant layer 12 and an inner wrapping tape 13.

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.

Referring to fig. 1-2, a plastic insulating flame-retardant anti-interference control cable comprises eight cable cores 1, wherein two adjacent cable cores 1 are woven by twisted pair, an insulating sleeve 2 is fixedly connected to the outer ring of each cable core 1, the insulating sleeve 2 is made of fluorinated ethylene propylene, the insulating sleeve 2 has the advantages of good chemical inertness and no ignition, and can play a role of good insulation protection and assist in preventing flame from spreading, an inner wrapping tape 13 is fixedly connected to the outer side of each insulating sleeve 2, the number of the inner wrapping tapes 13 is four, a first filling layer 3 is filled in the inner ring of each inner wrapping tape 13 and located on the outer side of each insulating sleeve 2, the first filling layer 3 is made of a mixture of PP ropes, an outer wrapping tape 5 is fixedly connected to the outer side of each inner wrapping tape 13, the outer wrapping tapes 5 and the inner wrapping tapes 13 are made of the same material and are made of non-woven fabrics, by arranging the outer wrapping belt 5 and the inner wrapping belt 13, the cable can be conveniently formed, the inner ring of the outer wrapping belt 5 and the outer side of the inner wrapping belt 13 are filled with the second filler 4, the second filler 4 is made of glass fiber in a mixed mode, the first filler layer 3 and the second filler 4 are arranged, the stretching-resistant effect can be achieved to a certain degree, the outer ring of the outer wrapping belt 5 is fixedly connected with the shielding layer 6, the shielding layer 6 is made of conductive rubber, the shielding layer 6 has the advantages of sealing and electromagnetic shielding and can prevent external gas from permeating and achieve the anti-interference shielding effect, the outer side of the shielding layer 6 is fixedly connected with the flame-retardant layer 7, the flame-retardant layer 7 comprises a mica tape layer 10, an adhesive 11 and a filling flame-retardant layer 12, the mica tape layer 10 is connected with the outer ring of the filling flame-retardant layer 12 through the inner ring adhesive 11, and by arranging the mica, has excellent high temperature resistance and combustion resistance, can play a good flame retardant role, the material of the filling flame retardant layer 12 is made by mixing magnesium hydroxide composite flame retardant, through setting up the filling flame retardant layer 12, has the advantages of pyrolysis water and innocuity, can have good flame retardant role, and plays a role in auxiliary fire extinguishing during high temperature, the material of the adhesive 11 is organic silicon adhesive, through setting up the adhesive 11, has excellent cold and hot resistance, aging resistance and electrical insulation performance, can stably connect the mica tape layer 10 and the filling flame retardant layer 12, one side of the flame retardant layer 7 far away from the shielding layer 6 is fixedly connected with a steel tape armor layer 8, the outer ring of the steel tape armor layer 8 is fixedly connected with a sheath 9, through setting up the cable core 1, the insulating sleeve 2, the first filling layer 3, the second filling 4, the outer wrapping tape 5, the shielding layer 6, the steel tape armor layer 8, the sheath 9, Mica tape layer 10, adhesive 11, filling fire-retardant layer 12 and interior banding 13 cooperation use, have the advantage that the interference killing feature is good and the fire resistance is good, solved current control cable interference killing feature relatively poor, electric interference is more serious between the cable core, and the fire resistance is general, has reduced the problem of control cable practicality.

When in use, the insulating sleeve 2 is arranged, so that the insulating sleeve has the advantages of excellent chemical inertia and no ignition, can play a role of good insulation protection and assists in preventing flame from diffusing, can play a role of tensile resistance to a certain degree by arranging the first filling layer 3 and the second filling material 4, can facilitate the forming of a cable by arranging the outer wrapping belt 5 and the inner wrapping belt 13, has the advantages of sealing and electromagnetic shielding by arranging the shielding layer 6, can prevent external gas from permeating, plays a role of shielding and resisting interference, has excellent high-temperature resistance and combustion resistance by arranging the mica tape layer 10, can play a role of good flame retardance, has excellent cold and heat resistance, aging resistance and electrical insulation by arranging the adhesive 11, can stably connect the mica tape layer 10 and the filling flame retardant layer 12, has the advantages of high-temperature decomposition water and no toxicity and no harm by arranging the filling flame retardant layer 12, the cable has the advantages that the flame retardant effect can be good, the auxiliary fire extinguishing effect is achieved at high temperature, good anti-interference shielding is achieved through the cable core 1 and the shielding layer 6 woven by the twisted pair, and multiple flame retardance is achieved through the insulating sleeve 2, the second filler 4, the mica tape layer 10 and the filling flame retardant layer 12.

All parts used in this document are standard parts and are commercially available, and no specific description is given here.

In summary, the following steps: this fire-retardant anti-interference control cable of plastics insulation, through setting up cable core 1, insulating cover 2, first filling layer 3, second filler 4, outsourcing area 5, shielding layer 6, steel band armor 8, sheath 9, mica tape layer 10, adhesive 11, pack fire-retardant layer 12 and the cooperation of endocyst area 13 and use, the advantage that has that the interference killing feature is good and the fire resistance is good has, it is relatively poor to have solved current control cable interference killing feature, electrical interference is more serious between the cable core, and the fire resistance is general, the problem of control cable practicality has been reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire-retardant anti-interference control cable of plastic insulation, includes cable core (1), its characterized in that: an insulating sleeve (2) is fixedly connected with the outer ring of the cable core (1), an inner wrapping tape (13) is fixedly connected with the outer side of the insulating sleeve (2), the inner ring of the inner wrapping tape (13) and the outer side of the insulating sleeve (2) are filled with a first filling layer (3), the outer side of the inner wrapping tape (13) is fixedly connected with an outer wrapping tape (5), the inner ring of the outer wrapping tape (5) and the outer side of the inner wrapping tape (13) are filled with a second filler (4), the outer ring of the outer wrapping tape (5) is fixedly connected with a shielding layer (6), the outer side of the shielding layer (6) is fixedly connected with a flame-retardant layer (7), the flame-retardant layer (7) comprises a mica tape layer (10), an adhesive (11) and a filling flame-retardant layer (12), one side of the flame-retardant layer (7) far away from the shielding layer (6) is fixedly connected with a steel strip armor layer (8), and the outer ring of the steel belt armor layer (8) is fixedly connected with a sheath (9).

2. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the inner ring of the mica tape layer (10) is bonded and connected with the outer ring of the filling flame-retardant layer (12) through an adhesive (11), and the adhesive (11) is made of an organic silicon adhesive.

3. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the outer wrapping belt (5) and the inner wrapping belt (13) are made of the same materials and are made of non-woven fabrics, and the number of the inner wrapping belts (13) is four.

4. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: the number of the cable cores (1) is eight, and the two adjacent cable cores (1) are woven by twisted pairs.

5. The plastic insulating flame-retardant anti-interference control cable according to claim 1, characterized in that: first filling layer (3) are PP rope mixed and make, second filler (4) are glass fiber mixed and make, the material of insulating cover (2) is for gathering perfluoroethylene propylene and making, the material of shielding layer (6) is for conducting rubber to make, the material of filling fire-retardant layer (12) is magnesium hydroxide composite flame retardant mixed and makes.