CN204792125U - Fire -retardant fire -resistant midium voltage cable - Google Patents
Fire -retardant fire -resistant midium voltage cable Download PDFInfo
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- CN204792125U CN204792125U CN201520514328.5U CN201520514328U CN204792125U CN 204792125 U CN204792125 U CN 204792125U CN 201520514328 U CN201520514328 U CN 201520514328U CN 204792125 U CN204792125 U CN 204792125U
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Abstract
The utility model discloses a fire -retardant fire -resistant midium voltage cable, the technical problem that solve provide one kind to have high fire -retardant refractiveness, anti -electromagnetic interference ability reinforce and the superior fire -retardant fire -resistant midium voltage cable of electric property. In order to solve the technical problems, the utility model discloses a following technical scheme: a fire -retardant fire -resistant midium voltage cable, includes the conductor, the conductor outward in proper order the cladding have conductor shield, insulating layer, insulation screen, copper tape shield layer, filling layer, around the band, separate oxygen layer, flame retardant coating, weaving layer, second septum oxygen layer, armor and oversheath. Compared with the prior art, the utility model, have high fire -retardant fire resisting construction, its fire -retardant fire -resistant stable in structure can effectively shield the magnetic field interference simultaneously, and the electric property is superior.
Description
Technical field
The utility model relates to a kind of flame-retardant midium voltage cable.
Background technology
Along with China's economic construction paces are accelerated, the intermediate distribution system of the important places such as skyscraper, subway, power plant, requirements at the higher level are proposed to the fail safe of cable under Fire Conditions, due to the electrical performance demands that midium voltage cable is special, so the mode of production of pressure common fire-resisting cable can not be adopted, the special mode of production need be adopted.Current middle pressure fireproof construction is generally extrude or be wound around multiple layer refractory separator, and this fireproof construction is in reality detects, bad to the fire-retardant and fire-resistant effect of midium voltage cable, in use easily causes great dangerous hidden danger.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind ofly has the strong and flame-retardant midium voltage cable that electric property is superior of high flame retardant fire resistance, anti-electromagnetic interference capability.
For solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of flame-retardant midium voltage cable, comprise conductor, described conductor is coated with conductor shield, insulating barrier, insulation screen, copper strip shielding layer, packed layer, twining package tape, oxygen barrier layer, flame retardant coating, braid, the second oxygen barrier layer, armour and oversheath outward successively.
Packed layer described in the utility model is glass fibre gasket for packing.
Twining package tape described in the utility model is low-smoke non-halogen flame-retardant band.
Oxygen barrier layer described in the utility model and the second oxygen barrier layer are low smoke halogen-free flame-retardant polyolefin layer.
Flame retardant coating described in the utility model is ceramic fireproof electric wire silicone rubber cable layer.
Braid described in the utility model is naked copper or tincopper fuse wire braided armor.
Armour described in the utility model is galvanized steel strip or zinc-coated wire.
Oversheath described in the utility model is low-smoke bittern-free highly fire-proof polyolefin jacket.
The utility model compared with prior art, has high flame retardant fireproof construction, its flame-retardant Stability Analysis of Structures, can effectively disturb by armoured magnetic field, and electric property is superior simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in Figure 1, the utility model flame-retardant midium voltage cable, comprise conductor 1, this conductor 1 is outer is coated with conductor shield 2, insulating barrier 3, insulation screen 4, copper strip shielding layer 5, packed layer 6, twining package tape 7, oxygen barrier layer 8, flame retardant coating 9, braid 10, second oxygen barrier layer 11, armour 12 and oversheath 13 successively.Wherein, packed layer 6 is glass fibre gasket for packing; Twining package tape 7 is low-smoke non-halogen flame-retardant band; Oxygen barrier layer 8 and the second oxygen barrier layer 11 are low smoke halogen-free flame-retardant polyolefin layer; Flame retardant coating 9 is ceramic fireproof electric wire silicone rubber cable layer; Braid 10 is naked copper or tincopper fuse wire braided armor; Armour 12 is galvanized steel strip or zinc-coated wire; Oversheath 13 is low-smoke bittern-free highly fire-proof polyolefin jacket.
When the utility model is produced, insulated wire cores is made up of conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4 and copper strip shielding layer 5 from inside to outside successively.Cable comprises three insulated wire cores, after stranding successively coated twining package tape 7, extrude oxygen barrier layer 8, wrapped or extrude flame retardant coating 9 and braid 10, extrude the second oxygen barrier layer 11 and armour 12, finally extrude oversheath 13, between three insulated wire cores and stranding band, be provided with packed layer 6.
The ceramic silicon rubber that the utility model cable fire layer uses has and at high temperature starts the hardening characteristic forming ceramic-like housing.The housing that ceramic is hard in case of fire can play well fire-retardant, fire-resistant, fireproofing function.Outside flame retardant coating, carry out proof copper-wire braided shielding, make the flame-retardant structure gapless of midium voltage cable, prevent from causing cable to lose the effect of flame-retardant because gap causes oxygen to enter.Woven shield and metal screen layer form screened cable structure simultaneously; the electromagnetic field caused when can effectively be energized to cable shields; the electromagnetic interference that minimizing produces to external world, restriction external electromagnetic field have an impact to cable inside; braid also tightly can wrap flame retardant coating in cable fire process simultaneously; make flame retardant coating more stable and do not come off, thus protection cable is without prejudice cable inside in combustion.
Claims (8)
1. a flame-retardant midium voltage cable, comprise conductor (1), it is characterized in that: described conductor (1) is coated with conductor shield (2), insulating barrier (3), insulation screen (4), copper strip shielding layer (5), packed layer (6), twining package tape (7), oxygen barrier layer (8), flame retardant coating (9), braid (10), the second oxygen barrier layer (11), armour (12) and oversheath (13) outward successively.
2. flame-retardant midium voltage cable according to claim 1, is characterized in that: described packed layer (6) is glass fibre gasket for packing.
3. flame-retardant midium voltage cable according to claim 2, is characterized in that: described twining package tape (7) is low-smoke non-halogen flame-retardant band.
4. flame-retardant midium voltage cable according to claim 3, is characterized in that: described oxygen barrier layer (8) and the second oxygen barrier layer (11) are low smoke halogen-free flame-retardant polyolefin layer.
5. flame-retardant midium voltage cable according to claim 4, is characterized in that: described flame retardant coating (9) is ceramic fireproof electric wire silicone rubber cable layer.
6. flame-retardant midium voltage cable according to claim 5, is characterized in that: described braid (10) is naked copper or tincopper fuse wire braided armor.
7. flame-retardant midium voltage cable according to claim 6, is characterized in that: described armour (12) is galvanized steel strip or zinc-coated wire.
8. flame-retardant midium voltage cable according to claim 7, is characterized in that: described oversheath (13) is low-smoke bittern-free highly fire-proof polyolefin jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520514328.5U CN204792125U (en) | 2015-07-15 | 2015-07-15 | Fire -retardant fire -resistant midium voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520514328.5U CN204792125U (en) | 2015-07-15 | 2015-07-15 | Fire -retardant fire -resistant midium voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792125U true CN204792125U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520514328.5U Active CN204792125U (en) | 2015-07-15 | 2015-07-15 | Fire -retardant fire -resistant midium voltage cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN204792125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979664A (en) * | 2019-05-09 | 2019-07-05 | 江苏港通电缆有限公司 | A kind of follow-on oxygen barrier layer cable |
| CN110364902A (en) * | 2019-08-12 | 2019-10-22 | 江苏亨通电力电缆有限公司 | Middle pressure fireproof cable connection method and middle pressure fireproof cable |
-
2015
- 2015-07-15 CN CN201520514328.5U patent/CN204792125U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979664A (en) * | 2019-05-09 | 2019-07-05 | 江苏港通电缆有限公司 | A kind of follow-on oxygen barrier layer cable |
| CN110364902A (en) * | 2019-08-12 | 2019-10-22 | 江苏亨通电力电缆有限公司 | Middle pressure fireproof cable connection method and middle pressure fireproof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214242 Jiangsu Province, Wuxi City Industrial Park, the western suburbs of Yixing Zhenfeng Road No. 999 Patentee after: JIANGSU ZHONGCHAO HOLDING CO., LTD. Address before: 214242 Jiangsu Province, Wuxi City Industrial Park, the western suburbs of Yixing Zhenfeng Road No. 999 Patentee before: Jiangsu Zhongchao Cable Corporation |
|
| CP01 | Change in the name or title of a patent holder |