CN203520940U - Soft-grade fireproof cable - Google Patents
Soft-grade fireproof cable Download PDFInfo
- Publication number
- CN203520940U CN203520940U CN201320628025.7U CN201320628025U CN203520940U CN 203520940 U CN203520940 U CN 203520940U CN 201320628025 U CN201320628025 U CN 201320628025U CN 203520940 U CN203520940 U CN 203520940U
- Authority
- CN
- China
- Prior art keywords
- fireproof
- fire
- cable
- layer
- conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000003063 flame retardant Substances 0.000 claims description 21
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 230000004888 barrier function Effects 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 210000000689 upper leg Anatomy 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- -1 3-2 Substances 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002113 chemopreventative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model belongs to the technical field of cables and particularly relates to a soft-level fireproof cable which includes cable cores and an external protective sleeve. The cable cores are formed through twisting of a plurality of soft power lines which have a fireproof property according to a specific pitch. Each power line includes a conductor, a fireproof layer and an insulating layer, wherein the conductor is formed through twisting of a plurality of annealed-copper conductors and the fireproof layer and the insulating layer are wrapped outside the conductor in order. Each fireproof layer is divided into two layers. The fireproof layers of the fireproof cable adopt a novel ceramic fire-preventing fireproof material which hardens into ceramic-shaped casings at a temperature higher than 350 DEG C and the ceramic-shaped hard casings are capable of playing great inflaming-retarding, fireproof, fire-preventing and fire-isolating roles under a fire disaster condition, wherein the highest temperature reaches 3000 DEG C so that smoothness of a circuit is ensured effectively. Each fireproof layer is divided into two layers and even if the outer layer is damaged, the inner layer is still integral and thus security of the cable is improved. At the same time, the ceramic casing still has an excellent insulating property so that normal operation of the circuit is ensured.
Description
Technical field
The utility model belongs to cable technology field, relates in particular to a kind of soft level fire-resisting cable.
Technical background
Cable is normally by the cable of several or at least two every group stranded similar ropes that form of several groups of wires, mutually insulated between every group of wire, and often round Yi Gen center, be twisted into, whole outside is surrounded by the cover layer of high-insulation, the kind of cable is a lot, comprise power cable, control cables, compensating cable, shielded type cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resisting cable, shipboard cable, aluminium alloy cable etc., lifting due to people's awareness of safety, fire-resisting cable demand constantly increases, at present, fire-resisting cable both domestic and external adopts winding mica tape mostly, this type of cable is base material because flame retardant coating mica tape adopts mica, after burning, the overwhelming majority becomes ashes, under normal condition, this kind of cable can be harder, and in some special occasion, cable need have flexibility to a certain degree, and this kind of cable is difficult to reach requirement.
Summary of the invention
For addressing the above problem, the utility model provides a kind of soft level fire-resisting cable, comprise cable core and oversheath, it is characterized in that: the power line that described cable core has fire resistance softness by some thighs forms by a constant pitch is stranded, and described power line comprises conductor, flame retardant coating, insulating barrier; Described conductor is stranded the forming of the tough copper conductor of multiply; Described conductor is wrapped flame retardant coating, insulating barrier successively outward.
The power line twisting pitch of described fire resistance softness is not more than 20 times of stranded external diameters.
The quantity of described power line is three cores.
Described flame retardant coating is two-layer.
Described flame retardant coating material is ceramic fireproof material.
Described insulating barrier material is low smoke halogen-free flame-retardant polyolefin.
The beneficial effects of the utility model are: the utility model is divided into flame retardant coating two-layer, the flame retardant coating of fire-resisting cable adopts a kind of new ceramics chemoprevention fire refractory material, it starts the housing that ceramic-like is formed in hardening at more than 350 ℃ temperature, under fire condition, " ceramic " hard housing can play well fire-retardant, fire-resistant, fire prevention, the effect of fire insulation, reach as high as 3000 ℃, effective guarantee circuit unimpeded, flame retardant coating is divided into two-layer, even outer, damage, internal layer is still complete, improved the fail safe of cable, the housing of " ceramic " still has good insulation property simultaneously, can guarantee the normal operation of circuit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further explained to explanation.
In figure, 1, cable core, 2, oversheath, 3, power line, 3-1, conductor, 3-2, flame retardant coating, 3-3, insulating barrier.
As shown in Figure 1, the utility model comprises cable core 1 and oversheath 2, cable core 1 is had fire resistance softness power line 3 by multiply forms by a constant pitch is stranded, power line 3 comprises conductor 3-1, flame retardant coating 3-2, insulating barrier 3-3, conductor 3-1 is stranded the forming of the tough copper conductor of multiply, conductor 3-1 is wrapped flame retardant coating 3-2 successively outward, insulating barrier 3-2, power line 3 twisting pitch of fire resistance softness are not more than 20 times of stranded external diameters, the quantity of power line 3 is three cores, flame retardant coating 3-2 is two-layer, flame retardant coating 3-2 material is ceramic fireproof material, insulating barrier 3-3 material is low smoke halogen-free flame-retardant polyolefin.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should belonging to patent covering scope of the present utility model.
Claims (6)
1. a soft level fire-resisting cable, comprise cable core (1) and oversheath (2), it is characterized in that: the power line (3) that described cable core (1) has fire resistance softness by some thighs forms by a constant pitch is stranded, and described power line (3) comprises conductor (3-1), flame retardant coating (3-2), insulating barrier (3-3); Described conductor (3-1) is stranded the forming of some tough copper conductors; Described conductor (3-1) outer wrapped flame retardant coating (3-2), insulating barrier (3-2) successively.
2. a kind of soft level fire-resisting cable according to claim 1, is characterized in that: the power line of described fire resistance softness (3) twisting pitch is not more than 20 times of stranded external diameters.
3. a kind of soft level fire-resisting cable according to claim 1, is characterized in that: the quantity of described power line (3) is three cores.
4. a kind of soft level fire-resisting cable according to claim 1, is characterized in that: described flame retardant coating (3-2) is for two-layer.
5. a kind of soft level fire-resisting cable according to claim 1, is characterized in that: described flame retardant coating (3-2) material is ceramic fireproof material.
6. a kind of soft level fire-resisting cable according to claim 1, is characterized in that: described insulating barrier (3-3) material is low smoke halogen-free flame-retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628025.7U CN203520940U (en) | 2013-10-12 | 2013-10-12 | Soft-grade fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628025.7U CN203520940U (en) | 2013-10-12 | 2013-10-12 | Soft-grade fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203520940U true CN203520940U (en) | 2014-04-02 |
Family
ID=50379832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320628025.7U Expired - Lifetime CN203520940U (en) | 2013-10-12 | 2013-10-12 | Soft-grade fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203520940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11981285B2 (en) * | 2021-11-22 | 2024-05-14 | Swivler, Inc. | Method and apparatus for preventing theft of catalytic converter |
-
2013
- 2013-10-12 CN CN201320628025.7U patent/CN203520940U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11981285B2 (en) * | 2021-11-22 | 2024-05-14 | Swivler, Inc. | Method and apparatus for preventing theft of catalytic converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |