CN202662385U - Ratproof fireproof class IV communication cable - Google Patents
Ratproof fireproof class IV communication cable Download PDFInfo
- Publication number
- CN202662385U CN202662385U CN 201220221301 CN201220221301U CN202662385U CN 202662385 U CN202662385 U CN 202662385U CN 201220221301 CN201220221301 CN 201220221301 CN 201220221301 U CN201220221301 U CN 201220221301U CN 202662385 U CN202662385 U CN 202662385U
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- class
- mica tape
- communication cable
- layer
- ratproof
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- Expired - Lifetime
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Abstract
The utility model relates to a communication cable, in particular to a class IV communication cable. The ratproof fireproof class IV communication cable comprises a class I bare copper wire, wherein polyethylene insulation is formed outside the wire, every two conductors are bound by a polyether tape into a cable core, a longitudinally-bound mica tape buffering layer is arranged outside four strands of cable cores and is filled with filler, and the mica tape buffering layer is externally provided with a longitudinally-bound-grain steel belt ratproof layer, a highly flame-retardant halogen-free low-smoke oxygen insulation layer, a mica tape fireproof layer and a halogen-free low-smoke flame-retardant cross-linked polyethylene outer jacket. The ratproof fireproof class IV communication cable has the characteristics of fire proofness and rat biting prevention.
Description
Technical field
The utility model relates to order wire, relates in particular to the 5th class order wire.
Background technology
Along with the continuous improvement of people's material and cultural life, country was to the gradually attention of fireproofing, the progressively raising of people's awareness of safety in recent years.In order to improve the safe class of communication line, reduce generation and the loss of electrical fire accident, Minstry of Housing and Urban-Rural Development of People Republic of China (MOHURD), the Ministry of Public Security and some local governments have promulgated some electrical design standards in succession, and clear should adopt fire-resistant 5 class digital communication line at some important communication lines or place.
The important places such as modern skyscraper, subway, power plant, nuclear power station, tunnel, the combustible of use is more and more; Each big and medium-sized cities is built subway line in succession, under the condition of in a single day catching fire as these important places, needs the various control signals of transmission and alarm signal, finishes automatic alarm, the startup of fire protection equipment.And fire-resistant 5 class digital communication line can guarantee when fire occurs that circuit transmits various control signals, alarm signal in certain hour.Personnel are in time evacuated, rescue work is normally carried out.
In addition, muroid is lived in the world each area widely as a kind of reproductive capacity and the very strong rodent of vitality.Because its front tooth is very flourishing and constantly growth, muroid has the object that bites to keep the sharp habit of its tooth, the contained distinctive smell of plastics makes it become the object that muroid often bites in the 5 class digital communication line sheaths, therefore communication line often suffers damaged by rats and affects communication quality in some occasions, even causes communication disruption.
Summary of the invention
The utility model is intended to address the aforementioned drawbacks, and provides a kind of protection against rodents fire-resistant the 5th class order wire.That the utility model possesses is fire-resistant, the characteristic of mouse bite preventing.
For addressing the above problem, a kind of protection against rodents fire-proof medium-voltage cable, it comprises a class naked copper wire, wire has polyethylene insulation, per two conductors to become cable core by the polyester belt colligation outward together, establish filler in the four strands of vertical bag of cable core peripheral hardware mica tape resilient coatings, it is characterized in that, this mica tape resilient coating is provided with vertical wrapping line steel band protection against rodents layer, high flame retardant low smoke, zero halogen oxygen barrier layer, mica tape flame retardant coating and LSOH anti-flaming crosslinked polyethylene oversheath outward successively.
Double-deck mica tape of the present utility model, fire-retardant oxygen barrier layer, fire-retardant oversheath make cable have splendid fire resistance, fire resistance.Under fire condition, flame retardant coating can prevent that heat from importing oxygen barrier layer, core insulating barrier, thereby guarantees control, supervision, guiding and warning system signal transmission normal operation.Oxygen barrier layer adopts the polyolefin that can crust under combustion case, this oxygen barrier layer prevents the importing of heat under fire condition, plays the effect of protection intercommunication wire.The protection against rodents layer adopts the vertical bag bonding of steel plating band embossing to form, and the high strength of steel band can prevent biting of muroid, and the embossing structure has improved the bending property of optical cable.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the utility model schematic diagram.
Embodiment
As shown in Figure 1, a kind of protection against rodents fire-proof medium-voltage cable, it comprises a class naked copper wire 1, wire has polyethylene insulation 2, per two conductors to become cable core by polyester belt 3 colligations outward together, establish filler 5 in the four strands of vertical bag of cable core peripheral hardware mica tape resilient coatings 4,, these mica tape resilient coating 4 outer vertical wrapping line steel band protection against rodents layer 6, high flame retardant low smoke, zero halogen oxygen barrier layer 7, mica tape flame retardant coating 8 and LSOH anti-flaming crosslinked polyethylene oversheaths 9 of being provided with successively.
Claims (1)
1. protection against rodents fire-proof medium-voltage cable, it comprises a class naked copper wire, wire has polyethylene insulation, per two conductors to become cable core by the polyester belt colligation outward together, establish filler in the four strands of vertical bag of cable core peripheral hardware mica tape resilient coatings, it is characterized in that, this mica tape resilient coating is provided with vertical wrapping line steel band protection against rodents layer, high flame retardant low smoke, zero halogen oxygen barrier layer, mica tape flame retardant coating and LSOH anti-flaming crosslinked polyethylene oversheath outward successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221301 CN202662385U (en) | 2012-05-17 | 2012-05-17 | Ratproof fireproof class IV communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221301 CN202662385U (en) | 2012-05-17 | 2012-05-17 | Ratproof fireproof class IV communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662385U true CN202662385U (en) | 2013-01-09 |
Family
ID=47457273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220221301 Expired - Lifetime CN202662385U (en) | 2012-05-17 | 2012-05-17 | Ratproof fireproof class IV communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057347A (en) * | 2016-08-15 | 2016-10-26 | 江苏亨通线缆科技有限公司 | Long-distance network video transmission fireproof cable and communication system |
| CN109166675A (en) * | 2018-09-11 | 2019-01-08 | 广东中德电缆有限公司 | A kind of manufacture craft of rectangular cable |
-
2012
- 2012-05-17 CN CN 201220221301 patent/CN202662385U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057347A (en) * | 2016-08-15 | 2016-10-26 | 江苏亨通线缆科技有限公司 | Long-distance network video transmission fireproof cable and communication system |
| CN109166675A (en) * | 2018-09-11 | 2019-01-08 | 广东中德电缆有限公司 | A kind of manufacture craft of rectangular cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201514 Shanghai city Jinshan District zhenkang Zhangyan Town Road No. 238 Patentee after: Shanghai Qifan cable Limited by Share Ltd Address before: 201504 Shanghai city Jinshan District Zhangyan Town Economic Development Zone Zhang Yan Kang Road No. 238 vibration Patentee before: Shanghai Qifan Electric Wire Electric Cable Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |