CN201758017U - Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable - Google Patents
Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable Download PDFInfo
- Publication number
- CN201758017U CN201758017U CN201020270242XU CN201020270242U CN201758017U CN 201758017 U CN201758017 U CN 201758017U CN 201020270242X U CN201020270242X U CN 201020270242XU CN 201020270242 U CN201020270242 U CN 201020270242U CN 201758017 U CN201758017 U CN 201758017U
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- control cable
- safety system
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Abstract
The utility model discloses a low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable, which comprises a conductor and an insulating layer. The insulating layer is wrapped outside the conductor, a belting is wrapped outside the insulating layer, a shielding layer is wrapped outside the belting, and a sheath is wrapped outside the shielding layer. The area of the section of the conductor generally ranges from 0.75 square millimeter to 2.5 square millimeters, the shielding layer adopts copper band shielding or copper wire shielding, winding overlapping coefficient of the copper band shielding is not less than 15%, and the copper wire shielding can be woven by tinning or non-tinning circular copper wires. The control cable adopting cross-linked polyethylene for insulation reduces working capacitance, improves insulating resistance and voltage resistance, and is excellent in flame retardant performance, low in pH values and conductivity of halogen gases and gaseous liquor escaped from combustion of cable materials, low in corrosion, little in smoke generated in cable combustion, excellent in shielding performance and resistance to external electromagnetic field interference without interference to external.
Description
Technical field:
The utility model relates to control cable, relates in particular to a kind of low smoke and zero halogen environmental-protection flame-retardant intrinsic safety system control cable.
Background technology:
Cable is in order to transmit electricity (magnetic) energy, the wire product of information and the conversion of realization electromagnetic energy.Normally by the cable of several or at least two every group stranded similar ropes that form of several groups of leads, mutually insulated between every group of lead, and often be twisted into round a center, whole outside is surrounded by the cover layer of high-insulation.Electric wire mainly comprises bare wire, electromagnetic wire and electrical equipment and electrical insulated electric conductor, power cable, telecommunication cable and optical cable.
The utility model content:
The purpose of this utility model provides a kind of low smoke and zero halogen environmental-protection flame-retardant intrinsic safety system control cable, has solved cable because electric spark and thermal effect cause the problem of explosion hazard gases blast and cable selfcapacity and distributed inductance.
Technical scheme of the present utility model is as follows:
Low smoke and zero halogen environmental-protection flame-retardant intrinsic safety system control cable comprises conductor, insulating barrier, it is characterized in that described conductor outer wrapping insulating barrier, insulating barrier outer wrapping band, band outer wrapping screen, screen outer wrapping sheath.
Described cross-sectional area of conductor is generally 0.75～2.5mm
2
Described screen adopts copper strips or copper wire shielding, and copper strips shields wrapped Duplication should be not less than 15%, and the copper wire shielding can be adopted zinc-plated or not zinc-plated circular copper wire braiding.
The material that the utility model adopted is:
(1) conductor: conductor material is that oxygen-free copper bar draws the lead that forms.Conductor should satisfy among the GB/T3956 the 1st, the performance requirement of 2 kind of conductor, and soft junction structure control cable can adopt the 5th kind of conductor.Cross-sectional area of conductor is generally 0.75～2.5mm
2
(2) insulation: because the rated voltage of control cable is lower, be generally 450/750V,, do not need the dry cross-linking type so adopt the crosslinked with silicane type to get final product as the crosslinked polyethylene (XLPE) of insulation.Organosilane crosslinked polyethylene can reach 90 ℃ than PVC temperature resistant grade height, and uses common screw rod to extrude, and the warm water environment is crosslinked, processes very convenient.Also used vapour is crosslinked, to enhance productivity.
(3) stranding and cable core are wrapped: the common core number of control cable is more, keeps the cable rounding the most key.Cable stranding outermost layer direction of lay is a dextrad, adopt the 1st, the outermost layer twisting pitch of the cable of 2 kind of conductor structure is not more than the outside diameter of cable 20 times; Adopt the cable twisting pitch of the 5th kind of structure conductor to be not more than 16 times of the outside diameters of cable; Twining package tape is selected Halogen material twining package tape for use.
(4) shielding and armouring: copper strips or copper wire shielding are adopted in the shielding of low smoke, zero halogen control cable.Copper strips shields wrapped Duplication should be not less than 15%, and the copper wire shielding can be adopted zinc-plated or not zinc-plated circular copper wire braiding, and armouring adopts the galvanized steel strip bilayer wrapped, and the japanning steel band should be avoided using owing to contain noxious substance in the lacquer.
(5) sheath: sheath adopts polyolefin.According to the requirement of intrinsic safety system, the color of sheath is blue, so that distinguish with cable with the non-intrinsically safe safety system.
The utility model has the advantages that:
The utility model crosslinked polyethylene is insulation, reduces mutual capacitance, improves insulation resistance, improves voltage-resistent characteristic, has good flame retardant property; Halogen gas, gas pH value of water solution and the conductivity of overflowing during the cable material burning are low, have the low-corrosiveness energy; It is few to generate smog during cable fire, and cable has good shielding properties, and good anti-external electromagnetic field disturbs and do not produce external interference.
Description of drawings:
Fig. 1 is the utility model structural representation.
Embodiment:
Low smoke and zero halogen environmental-protection flame-retardant intrinsic safety system control cable comprises conductor 1, insulating barrier 2, described conductor 1 outer wrapping insulating barrier 2, insulating barrier 2 outer wrapping bands 3, band 3 outer wrapping screens 4, screen 4 outer wrapping sheaths 5.
Described conductor 1 cross section is generally 0.75～2.5mm
2
Described screen 4 adopts copper strips or copper wire shielding, and copper strips shields wrapped Duplication should be not less than 15%, and the copper wire shielding can be adopted zinc-plated or not zinc-plated circular copper wire braiding.
Claims (3)
1. low smoke and zero halogen environmental-protection flame-retardant intrinsic safety system control cable comprises conductor, insulating barrier, it is characterized in that described conductor outer wrapping insulating barrier, insulating barrier outer wrapping band, band outer wrapping screen, screen outer wrapping sheath.
2. low smoke and zero halogen environmental-protection flame-retardant intrinsic safety system control cable according to claim 1 is characterized in that described cross-sectional area of conductor is generally 0.75～2.5mm
2
3. low smoke and zero halogen environmental-protection flame-retardant intrinsic safety system control cable according to claim 1, it is characterized in that described screen adopts copper strips or copper wire shielding, copper strips shields wrapped Duplication should be not less than 15%, and the copper wire shielding can be adopted zinc-plated or not zinc-plated circular copper wire braiding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020270242XU CN201758017U (en) | 2010-07-21 | 2010-07-21 | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020270242XU CN201758017U (en) | 2010-07-21 | 2010-07-21 | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201758017U true CN201758017U (en) | 2011-03-09 |
Family
ID=43645305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020270242XU Expired - Fee Related CN201758017U (en) | 2010-07-21 | 2010-07-21 | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201758017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915125A (en) * | 2014-03-13 | 2014-07-09 | 安徽猎塔电缆集团有限公司 | Weather-resistant shield cable for control |
| CN105118547A (en) * | 2015-08-20 | 2015-12-02 | 安徽怡和电缆有限公司 | Control computer mixed installation cable |
| CN105390202A (en) * | 2015-12-14 | 2016-03-09 | 江苏上上电缆集团有限公司 | Cable in control cabinet and manufacturing method of cable |
-
2010
- 2010-07-21 CN CN201020270242XU patent/CN201758017U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915125A (en) * | 2014-03-13 | 2014-07-09 | 安徽猎塔电缆集团有限公司 | Weather-resistant shield cable for control |
| CN105118547A (en) * | 2015-08-20 | 2015-12-02 | 安徽怡和电缆有限公司 | Control computer mixed installation cable |
| CN105390202A (en) * | 2015-12-14 | 2016-03-09 | 江苏上上电缆集团有限公司 | Cable in control cabinet and manufacturing method of cable |
| CN105390202B (en) * | 2015-12-14 | 2017-01-25 | 江苏上上电缆集团有限公司 | Cable in control cabinet and manufacturing method of cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110309 Termination date: 20180721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |