CN212874132U - Low-smoke halogen-free flame-retardant guide cable with shielding polyolefin - Google Patents
Low-smoke halogen-free flame-retardant guide cable with shielding polyolefin Download PDFInfo
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- CN212874132U CN212874132U CN202021746001.8U CN202021746001U CN212874132U CN 212874132 U CN212874132 U CN 212874132U CN 202021746001 U CN202021746001 U CN 202021746001U CN 212874132 U CN212874132 U CN 212874132U
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Abstract
The utility model discloses a fire-retardant guide cable of low smoke and zero halogen of area shielding polyolefin, include oversheath, armor, shielding layer, inner liner, mica tape, wind band, wire, filler, the inside cladding of oversheath has the armor, netted shielding layer has been woven to the inside of armor, the inside inner liner that has cup jointed of shielding layer, the inside winding of inner liner has the mica tape, the inside winding in mica tape has around the band, there are three wires of transposition each other around the inside parcel in band, and is equipped with the filler between the wire. The utility model discloses play fire-retardant effect, avoid the burning of inside conductor, play the fire prevention effect, the normal use of influence cable is avoided in the interference of effectual shielding external signal.
Description
Technical Field
The utility model relates to a fire-retardant guide cable especially relates to a fire-retardant guide cable of low smoke and zero halogen of area shielding polyolefin.
Background
The guide cable is a connecting cable adopting a longitudinal differential protection device in a relay protection device of a power system, and is also an auxiliary cable which is frequently used in a power cable line. The cable receives external high temperature easily to take place the burning phenomenon, and in order to avoid the intensity of a fire to enlarge, the cable need use low cigarette fire-retardant material, and secondly the cable receives external signal interference unable normal use easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire-retardant guide cable of low smoke and zero halogen of area shielding polyolefin to solve above-mentioned technical problem.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides a fire-retardant guide cable of low smoke and zero halogen of area shielding polyolefin, includes oversheath, armor, shielding layer, inner liner, mica tape, winds band, wire, filler, the inside cladding of oversheath has the armor, netted shielding layer has been woven to the inside of armor, the inside inner liner that has cup jointed of shielding layer, the inside winding of inner liner has the mica tape, the inside winding of mica tape has around the band, there are three wires of transposition each other around the inside parcel in band, and is equipped with the filler between the wire.
On the basis of the technical scheme, the wire comprises an insulating layer, a fire-resistant isolation layer and a conductor, wherein the fire-resistant isolation layer is coated on the inner layer of the insulating layer, and the conductor made of brass is arranged inside the fire-resistant isolation layer.
On the basis of the technical scheme, the outer sheath is made of low-smoke halogen-free polyolefin, the shielding layer is a copper woven mesh, the filler is filled and is twisted with the wires, and the insulating layer is silicon rubber.
Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses an oversheath is low smoke and zero halogen polyolefin material, plays fire-retardant effect, avoids the burning of inside wire, and winding mica tape and the inside fire-resistant isolation layer of wire can play the fire prevention effect moreover, and secondly the copper mesh grid of shielding layer can effectually shield external signal's interference, avoids influencing the normal use of cable.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a cross-sectional view of the wire of the present invention.
In the figure: 1. oversheath, 2, armor, 3, shielding layer, 4, inner liner, 5, mica tape, 6, around the band, 7, wire, 8, filler, 9, insulating layer, 10, fire-resistant isolation layer, 11, conductor.
Detailed Description
The invention is explained in further detail below with reference to the figures and the embodiments.
As shown in fig. 1-2, a fire-retardant guide cable of low smoke and zero halogen of polyolefin is shielded in area, include oversheath 1, armor 2, shielding layer 3, inner liner 4, mica tape 5, around band 6, wire 7, filler 8, the inside cladding of oversheath 1 has armor 2, netted shielding layer 3 has been woven to armor 2 inside, inner liner 4 has been cup jointed to shielding layer 3 inside, the inside winding of inner liner 4 has mica tape 5, the inside winding of mica tape 5 has around band 6, there are three wires 7 of transposition each other around the inside parcel in band 6, and is equipped with filler 8 between the wire 7.
Oversheath 1 is low smoke and zero halogen polyolefin material, shielding layer 3 is the copper mesh grid, filler 8 has the packing to strand each other with wire 7, insulating layer 9 is the silicon rubber.
The foregoing is a preferred embodiment of the present invention, and for those skilled in the art to understand the teaching of the present invention, the changes, modifications, replacements and variations to the embodiments will still fall within the protection scope of the present invention without departing from the principle and spirit of the present invention.
Claims (3)
1. The utility model provides a fire-retardant guide cable of area shielding polyolefin low smoke and zero halogen, includes oversheath (1), armor (2), shielding layer (3), inner liner (4), mica tape (5), winds band (6), wire (7), filler (8), its characterized in that: the utility model discloses a cable, including oversheath (1), inside cladding has armor (2) in the inside, netted shielding layer (3) have been woven in armor (2), inner liner (4) have been cup jointed to shielding layer (3) inside, the inside winding of inner liner (4) has mica tape (5), the inside winding of mica tape (5) has around band (6), there are three wires (7) of transposition each other around band (6) inside parcel, and is equipped with filler (8) between wire (7).
2. The shielded polyolefin low-smoke halogen-free flame-retardant guide cable according to claim 1, characterized in that: wire (7) include insulating layer (9), fire-resistant isolation layer (10), conductor (11), insulating layer (9) inlayer cladding has fire-resistant isolation layer (10), inside conductor (11) that are equipped with the brass material of fire-resistant isolation layer (10).
3. The shielded polyolefin low-smoke halogen-free flame-retardant guide cable according to claim 2, characterized in that: oversheath (1) is low smoke and zero halogen polyolefin material, shielding layer (3) are the copper mesh grid, filler (8) have filling and wire (7) transposition each other, insulating layer (9) are silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021746001.8U CN212874132U (en) | 2020-08-20 | 2020-08-20 | Low-smoke halogen-free flame-retardant guide cable with shielding polyolefin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021746001.8U CN212874132U (en) | 2020-08-20 | 2020-08-20 | Low-smoke halogen-free flame-retardant guide cable with shielding polyolefin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212874132U true CN212874132U (en) | 2021-04-02 |
Family
ID=75189457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021746001.8U Active CN212874132U (en) | 2020-08-20 | 2020-08-20 | Low-smoke halogen-free flame-retardant guide cable with shielding polyolefin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212874132U (en) |
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2020
- 2020-08-20 CN CN202021746001.8U patent/CN212874132U/en active Active
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