CN102693781A - Fire-resistant coaxial cable - Google Patents
Fire-resistant coaxial cable Download PDFInfo
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- CN102693781A CN102693781A CN2011100673667A CN201110067366A CN102693781A CN 102693781 A CN102693781 A CN 102693781A CN 2011100673667 A CN2011100673667 A CN 2011100673667A CN 201110067366 A CN201110067366 A CN 201110067366A CN 102693781 A CN102693781 A CN 102693781A
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- fire
- coaxial cable
- mica tape
- resistant
- safe type
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Abstract
The invention relates to a fire-resistant coaxial cable which comprises an inner conductor, an insulated sleeve, a shielding layer, a mica tape and a sheath that are mutually coaxial, wherein the insulated sleeve is sleeved at the outer side of the inner conductor; the shielding layer is sleeved at the outer side of the insulated sleeve; the mica tape is wrapped at the outer side of the shielding layer; and the sheath is sleeved at the outer side of the mica tape. Compared with the prior art, the fire-resistant coaxial cable of the invention fills the blank of coaxial cable products used in occasions with fire prevention requirements; meanwhile, coaxial cables of different grades can be selectively adopted according to different fire prevention requirements to meet the expected design requirements; and additionally, the voltage resistance grade of an outer protection layer can be increased, and the emission of toxic and harmful gas can be reduced effectively to ensure safety of personnel. The fir-resistant coaxial cable meets the first-level fire-protection fire-resistant requirement and fills the blanks in wireless communication, broadcasting and other fields.
Description
Technical field
The present invention relates to a kind of cable, especially relate to a kind of fire safe type coaxial cable.
Background technology
At present, the coaxial cable widespread usage is at the feeder line and the connecting line of radio communication, broadcasting, TV, satellite radar, microwave communication and relevant electronic equipment, and this product is usually all among the building mansion, and fireproof requires to be absolutely necessary.Traditional coaxial cable does not have the requirement of fire protecting performance; Along with growth in the living standard; People press for and possess certain fire protecting performance being installed in various device and electric wire between the building mansion; Prolong the operating time of various communications, warning device as much as possible, thereby reduce personnel's casualty rate to a certain extent.The proposition of this product can be described as a blank having filled up the telecommunication cable aspect.
Summary of the invention
The object of the invention is exactly for the defective that overcomes above-mentioned prior art existence a kind of fire safe type coaxial cable that fire-fighting is fire-resistant, reduce the discharging of toxic and harmful that has to be provided.
The object of the invention can be realized through following technical scheme:
A kind of fire safe type coaxial cable; It is characterized in that; This cable is made up of coaxial inner wire, insulating case, screen, mica tape and sheath, and described insulating case is set in the outside of inner wire, and described screen is set in the outside of insulating case; Described mica tape is wrapped up in the outside that is located at screen, and described sheath is set in the outside of mica tape.
Described inner wire is the conductor of standard oxygenless copper material.
The material of described insulating case is a hp-ldpe.
Described screen is made up of foil shielding layer and woven shield, and described woven shield is set in the outside of foil shielding layer.
Described woven shield is obtained by fine copper silk or the braiding of magnalium silk.
Described mica tape is phlogopite band or synthetic mica tape.
The material of described sheath is polyvinyl chloride, medium density polyethylene or halogen-free and low-smoke flame-retardant polyolefin.
Compared with prior art, the present invention has the following advantages:
(1) brand new, brand-new technology has been filled up the blank of coaxial cable product product in the use in the place with fire protection requirement; And can be according to different fire protection requirements; Selectively adopt different brackets, the Related product of different prices is to reach the designing requirement of expection;
(2) this design meets the signal transmission operation principle of coaxial cable, on outer conductor, increases fire-resistant isinglass belt and not only can play fire-resistant purpose, but also can improve the proof voltage grade of outer jacket;
(3) in case as the cable material of polyolefin that insulating barrier and restrictive coating adopted LSOH anti-flaming then breaking out of fire can reduce the discharging of toxic and harmful effectively; Support personnel's safety; Can reach the requirement of the fire-resistant one-level of fire-fighting, fill up a blank in fields such as radio communication, broadcasting.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1 is that inner wire, 2 is that insulating case, 3 is that screen, 31 is that foil shielding layer, 32 is that woven shield, 4 is that mica tape, 5 is a sheath among the figure.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
A kind of fire safe type coaxial cable; Its structure is as shown in Figure 1; This cable is made up of coaxial inner wire 1, insulating case 2, screen 3, mica tape 4 and sheath 5, and insulating case 2 is set in the outside of inner wire 1, and screen 3 is set in the outside of insulating case 2; Mica tape 4 is wrapped up in the outside that is located at screen 3, and sheath 5 is set in the outside of mica tape 4.Wherein, Inner wire 1 is the conductor of standard oxygenless copper material, and the material of insulating case 2 is a hp-ldpe, and screen 3 is made up of foil shielding layer 31 and woven shield 32; Woven shield 32 is obtained by fine copper silk or the braiding of magnalium silk, is set in the outside of foil shielding layer 31.Mica tape 4 is phlogopite band or synthetic mica tape, and the material of sheath 5 is polyvinyl chloride, medium density polyethylene or halogen-free and low-smoke flame-retardant polyolefin.
Fire-resistant coaxial cable will reach fire-resistant effect; Be Principle of Signal Transmission wrapped one deck or double-deck fire-resistant isinglass belt on the outer conductor of traditional coaxial cable according to coaxial cable; Guaranteeing when the breaking out of fire of building mansion, normal transmission that can inhibit signal in official hour.Wrapped which floor fire-resistant isinglass belt or adopt the fire-resistant isinglass belt of which kind of grade, and the jacket material that is adopted has determined the grade of this cable fire resistance.
The fire safe type coaxial cable does not have respective standard; Can be with reference to GA 306.2-2007 standard---fire-retardant and the fire-resisting cable plastic insulation is fire-retardant and fire-resisting cable classification and require part 2: the fire-resistant rank of classification and marking 4.1.4 of fire-resisting cable is divided into level Four, and fire-resistant rank mark is respectively:
Fire-resistant one-level: I level, fire-resistant one-level category-A: IA level;
Fire-resistant secondary: II level, fire-resistant secondary category-A: IIA level;
Fire-resistant three grades: III level, fire-resistant three grades of category-As: IIIA level;
Fire-resistant level Four: IV level, fire-resistant level Four category-A: IVA level.
Fire resistance rank and specification requirement are as shown in table 1.
Table 1
Thus; The restrictive coating material of fire-resistant I level, fire-resistant IA level, fire-resistant II level, fire-resistant II A level should adopt polyethylene or the polyolefin with LSOH anti-flaming performance, can under the condition of 800 ℃ * 90min, satisfy the requirement of electrical property if flame retardant coating adopts phlogopite; If adopt synthetic mica then can under the condition of 800 ℃ * 90min, satisfy the requirement of electrical property.
Claims (7)
1. fire safe type coaxial cable; It is characterized in that; This cable is made up of coaxial inner wire, insulating case, screen, mica tape and sheath, and described insulating case is set in the outside of inner wire, and described screen is set in the outside of insulating case; Described mica tape is wrapped up in the outside that is located at screen, and described sheath is set in the outside of mica tape.
2. a kind of fire safe type coaxial cable according to claim 1 is characterized in that described inner wire is the conductor of standard oxygenless copper material.
3. a kind of fire safe type coaxial cable according to claim 1 is characterized in that the material of described insulating case is a hp-ldpe.
4. a kind of fire safe type coaxial cable according to claim 1 is characterized in that described screen is made up of foil shielding layer and woven shield, and described woven shield is set in the outside of foil shielding layer.
5. a kind of fire safe type coaxial cable according to claim 4 is characterized in that, described woven shield is obtained by fine copper silk or the braiding of magnalium silk.
6. a kind of fire safe type coaxial cable according to claim 1 is characterized in that described mica tape is phlogopite band or synthetic mica tape.
7. a kind of fire safe type coaxial cable according to claim 1 is characterized in that the material of described sheath is polyvinyl chloride, medium density polyethylene or halogen-free and low-smoke flame-retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100673667A CN102693781A (en) | 2011-03-21 | 2011-03-21 | Fire-resistant coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100673667A CN102693781A (en) | 2011-03-21 | 2011-03-21 | Fire-resistant coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102693781A true CN102693781A (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100673667A Pending CN102693781A (en) | 2011-03-21 | 2011-03-21 | Fire-resistant coaxial cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN102693781A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008799A (en) * | 2014-04-23 | 2014-08-27 | 晶锋集团股份有限公司 | Fireproof computer cable supported by framework |
| CN105489310A (en) * | 2014-12-18 | 2016-04-13 | 凌卫康 | Cable used for electric power system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271745A (en) * | 2008-04-23 | 2008-09-24 | 江苏耐安特种电缆有限公司 | High temperature line especially for high-temperature cabinet and its production method |
| CN201402664Y (en) * | 2009-05-06 | 2010-02-10 | 江苏亨通电力电缆有限公司 | Offshore oil platform flame-retardant fire-resistant oil- resistant soft power cable |
| CN201707950U (en) * | 2010-07-07 | 2011-01-12 | 上海索谷电缆集团有限公司 | Environment-friendly low-smoke halogen-free fire-retardant refractory control cable |
| CN201707967U (en) * | 2010-06-10 | 2011-01-12 | 扬州赛格线缆有限公司 | Fire-fighting halogen-free low-smoke coaxial cable |
-
2011
- 2011-03-21 CN CN2011100673667A patent/CN102693781A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271745A (en) * | 2008-04-23 | 2008-09-24 | 江苏耐安特种电缆有限公司 | High temperature line especially for high-temperature cabinet and its production method |
| CN201402664Y (en) * | 2009-05-06 | 2010-02-10 | 江苏亨通电力电缆有限公司 | Offshore oil platform flame-retardant fire-resistant oil- resistant soft power cable |
| CN201707967U (en) * | 2010-06-10 | 2011-01-12 | 扬州赛格线缆有限公司 | Fire-fighting halogen-free low-smoke coaxial cable |
| CN201707950U (en) * | 2010-07-07 | 2011-01-12 | 上海索谷电缆集团有限公司 | Environment-friendly low-smoke halogen-free fire-retardant refractory control cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008799A (en) * | 2014-04-23 | 2014-08-27 | 晶锋集团股份有限公司 | Fireproof computer cable supported by framework |
| CN105489310A (en) * | 2014-12-18 | 2016-04-13 | 凌卫康 | Cable used for electric power system |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI YUNSHI INTELLIGENT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI SHIP ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20130520 |
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Free format text: CORRECT: ADDRESS; FROM: 201111 MINHANG, SHANGHAI TO: 200240 MINHANG, SHANGHAI |
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Effective date of registration: 20130520 Address after: 200240 Shanghai city Minhang District Jianchuan Road No. 951 Building 5 floor 1 room 1096 Applicant after: Shanghai timing Intelligent Technology Co., Ltd. Address before: 201111 No. 2997, Jiangchuan Road, Shanghai, Minhang District Applicant before: Shanghai Ship Electronic Technology Co.,Ltd. |
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Application publication date: 20120926 |