CN202003741U - Crosslinked polyethylene insulated low-smoke zero-halogen environment-friendly fire-proof control cable - Google Patents
Crosslinked polyethylene insulated low-smoke zero-halogen environment-friendly fire-proof control cable Download PDFInfo
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- CN202003741U CN202003741U CN2011200790134U CN201120079013U CN202003741U CN 202003741 U CN202003741 U CN 202003741U CN 2011200790134 U CN2011200790134 U CN 2011200790134U CN 201120079013 U CN201120079013 U CN 201120079013U CN 202003741 U CN202003741 U CN 202003741U
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Abstract
The utility model discloses a crosslinked polyethylene insulated low-smoke zero-halogen environment-friendly fire-proof control cable. The cable comprises a plurality of conductors, filler yarns and refractory layers, wherein the refractory layers, inner belting layers and insulating layers are sequentially wrapped outside the conductors; after being wrapped by the insulating layers, the plurality of conductors are stranded into a bundle around the columnar filler yarns; an outer belting layer is wrapped on the outside of the bundled conductors; drainage wires are arranged in both the inner and the outer belting layers; and a shielding layer, a sheathing layer and an armor layer are sequentially wrapped on the outer side of the outer belting layer. In the utility model, the inner and the outer belting layers are adopted, one belting layer is positioned between the refractory layers and the insulating layers, and the other belting layer is positioned on the outer sides of the plurality of conductors wrapped by the insulating layers, so that the strength and the fire-proof characteristic of the cable are effectively enhanced; meanwhile, the insulating layers are made from crosslinked polyethylene, so that the working capacitance is lowered, the insulating resistance is increased and the voltage-proof characteristic is improved; and the cable provided by the utility model has superior flame retardant property and generates less smog.
Description
Technical field:
The utility model relates to the control cable field, relates in particular to a kind of crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable.
Background technology:
Fire-resisting cable as its name suggests, be meant under certain flame temperature burning condition, cable within a certain period of time the normal transmission electric energy, transmit various control signals, alarm signal, make illumination, fireproof alarming device and other emergency sets can in fixing time, continue energising, rescue work is normally carried out.Because fire-resisting cable has excellent flame-retardant performance, plays an important role in fire-fighting, is subjected to users' welcome deeply.
Cable is made up of conductor, insulating barrier and restrictive coating, is the electric product that is used for electric energy transmitting, transmission information and realizes the electromagnetic energy conversion.Cable is widely used in during the daily life of electric power system, colliery, industrial and agricultural production and people draws together, it can safe operation under certain condition of work, but when it will cause that the insulating material insulation resistance descends, loses insulating capacity even burning and then initiation fire explosion accident under heat effect outside malfunctions such as overload short circuit, local overheating reach.In recent years, the construction scale of each colliery, factory, building and equipment is increasing, and required thereupon cable is also increasing.Because cable is taked to concentrate the mode of laying usually, in case breaking out of fire, flame can spread along cable passage, and fire is enlarged rapidly.Simultaneously, the toxicity of seondary effect that fire brings such as personnel's injures and deaths, combustion fumes and to the pollution of environment etc. causes the loss more great than fire itself sometimes.Therefore, for the attention that more and more causes countries in the world of selecting for use of low smoke and zero halogen fire-resisting cable.
The utility model adopts inside and outside two-layer lapping layer, wherein one deck is between flame retardant coating and insulating barrier, another layer is positioned at the outside of the several conductors behind the wrap insulate layer, strengthened intensity, the fire-resistance property of cable effectively, the material of insulating barrier employing simultaneously is a crosslinked polyethylene, reduces mutual capacitance, improve insulation resistance, improve voltage-resistent characteristic, have good flame retardant property, the smog of generation is few.
The utility model content:
The purpose of this utility model provides a kind of crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable, solves poisonous mordant gas problem such as cable intensity a large amount of smog low, that produce when burning and hydrogen chloride.
Technical scheme of the present utility model is as follows:
Crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable, comprise several conductors, gasket for packing, flame retardant coating, it is characterized in that: described several conductors are enclosed with flame retardant coating, interior belting layer, insulating barrier outward successively, the gasket for packing of described several conductor wrap insulate layer D post shapes is the mutual stranded bunchy in center, the outside is enclosed with outer belting layer behind the bunchy, be provided with drainage thread in the described inside and outside belting layer, the described outer belting layer outside is enclosed with screen, restrictive coating, armour successively.
Described crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable is characterized in that: described flame retardant coating adopts the overlapping wrapped formation of multilayer synthetic mica tape, and wrapped Duplication is for being not less than 30%.
Described crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable is characterized in that: described several conductors are that oxygen-free copper bar draws the lead that forms, and described several cross-sectional area of conductor are generally 0.75～10mm
2
Described crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable is characterized in that: described screen adopts wrapped shielding of copper strips or copper wire braid shielded, and the wrapped Duplication of the wrapped shielding of copper strips should be not less than 15%.
Described crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable is characterized in that: described restrictive coating material adopts halogen-free anti-flaming polyolefin.
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.Cross-sectional area of conductor is generally 0.75～10mm
2
(2) flame retardant coating
In the outside of cable conductor is flame retardant coating, and this layer is the most critical position of fire-resisting cable, and effect is that organic insulation is destroyed and can also keep certain insulation property after fire takes place, and send to guarantee safety.Thereby the selection of flame retardant coating is most important.We are through consulting interrelated data, determine to select for use synthetic mica tape wrapped outside conductor as flame retardant coating, the advantage of this material is: synthetic mica tape than natural mica band quality softness, wrapped docile, tensile strength is big, is the desirable fire-resistant band of fire-resistant wire and cable.
The outer employing of conductor is two-layer or the multi layer cloud master tape is overlapping wrapped, Duplication general in the production is for being not less than 30%, because mica tape performance difference, Duplication 50% just can reach the fire resistance test requirement sometimes, and the wrapped situation of mica tape is a benchmark to reach fire resistance test thus.
During wrapped fire-resistant isinglass belt, the conductor wire core cross-sectional sizes can influence around-packing technology equally, should correctly select in the production mica tape width, thickness, put up rate, and choose lapping angle, avoid bottom pour ladle, broken belt, reduce slit, folded; Mica tape is put up the joint and is not allowed with the material bonding that has volatile materials.
When wrapped, emphasis control mica tape width, wrapping angle and tension force guarantee that mica tape is wrapped smooth, tight.In wrapped fire-resistant isinglass belt process or the semi-products of wrapping, avoid any and scrape, bump, squeeze, wipe, prevent to damage flame retardant coating.For fear of this situation, should adopt that polyester film is wrapped to be coated on outside the mica tape, protect.
(3) 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.
(4) 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;
Stranding is filled and band also is an important ring, generally selects for use the flame retardant type fiberglass products to fill, and can improve like this helps fire prevention, plays the thermodynamic barrier effect.Twining package tape is selected Halogen material twining package tape for use.
(5) 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.
(6) sheath: sheath adopts low-smoke halide-free fireproof composite polyolefine material, low-smoke halide-free fireproof composite polyolefine material is the new lover of electric wire with the plastics field, it has good flexibility, resistance to impact, environmental stress crack resistance in wider temperature range, as the CABLE MATERIALS matrix it is carried out halogen-free flameproof with EVA, and the mechanical property of improving fire-retardant back CABLE MATERIALS makes it satisfy the technical performance requirement of low-smoke halogen-free inflaming-retarding cable protective cover material, has very big value for applying of fireproofing cable material without halide.
The utility model has the advantages that:
The utility model adopts inside and outside two-layer lapping layer with the utility model, wherein one deck is between flame retardant coating and insulating barrier, another layer is positioned at the outside of the several conductors behind the wrap insulate layer, strengthened intensity, the fire-resistance property of cable effectively, the material of insulating barrier employing simultaneously is a crosslinked polyethylene, reduces mutual capacitance, improve insulation resistance, improve voltage-resistent characteristic, have good flame retardant property, the smog of generation is few.
Description of drawings:
Fig. 1 is the utility model structural representation.
Embodiment:
Crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable, comprise several conductors 1, gasket for packing 2, flame retardant coating 3, several conductor 1 outer flame retardant coatings 3 that are enclosed with successively, interior belting layer 4, insulating barrier 5, the gasket for packing 2 of several conductor 1 wrap insulate layer 5 D post shape is the mutual stranded bunchy in center, the outside is enclosed with outer belting layer 6 behind the bunchy, in, outer belting layer 4, be provided with drainage thread 7 in 6, outer belting layer 6 outsides are enclosed with screen 8 successively, restrictive coating 9, armour 10, flame retardant coating 3 adopts the overlapping wrapped formation of multilayer synthetic mica tape, wrapped Duplication is for being not less than 30%, several conductors 1 draw the lead that forms for oxygen-free copper bar, and several conductors 1 cross section is generally 0.75～10mm
2, screen 8 adopts wrapped shielding of copper strips or copper wire braid shielded, and the wrapped Duplication of the wrapped shielding of copper strips should be not less than 15%, and restrictive coating 9 materials adopt halogen-free anti-flaming polyolefin.
Claims (5)
1. crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable, comprise several conductors, gasket for packing, flame retardant coating, it is characterized in that: described several conductors are enclosed with flame retardant coating, interior belting layer, insulating barrier outward successively, the gasket for packing of described several conductor wrap insulate layer D post shapes is the mutual stranded bunchy in center, the outside is enclosed with outer belting layer behind the bunchy, be provided with drainage thread in the described inside and outside belting layer, the described outer belting layer outside is enclosed with screen, restrictive coating, armour successively.
2. crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable according to claim 1 is characterized in that: described flame retardant coating adopts the overlapping wrapped formation of multilayer synthetic mica tape, and wrapped Duplication is for being not less than 30%.
3. crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable according to claim 1 is characterized in that: described several conductors are that oxygen-free copper bar draws the lead that forms, and described several cross-sectional area of conductor are generally 0.75～10mm
2
4. crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable according to claim 1 is characterized in that: described screen adopts wrapped shielding of copper strips or copper wire braid shielded, and the wrapped Duplication of the wrapped shielding of copper strips should be not less than 15%.
5. crosslinked polyetylene insulated low smoke and zero halogen environment-friendly type fireproof control cable according to claim 1 is characterized in that: described restrictive coating material adopts halogen-free anti-flaming polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200790134U CN202003741U (en) | 2011-03-24 | 2011-03-24 | Crosslinked polyethylene insulated low-smoke zero-halogen environment-friendly fire-proof control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200790134U CN202003741U (en) | 2011-03-24 | 2011-03-24 | Crosslinked polyethylene insulated low-smoke zero-halogen environment-friendly fire-proof control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003741U true CN202003741U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200790134U Expired - Fee Related CN202003741U (en) | 2011-03-24 | 2011-03-24 | Crosslinked polyethylene insulated low-smoke zero-halogen environment-friendly fire-proof control cable |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165240A (en) * | 2011-12-12 | 2013-06-19 | 上海上力电线电缆有限公司 | Capacity-increasing, energy-saving and inflaming-retarding power cable |
| CN103366879A (en) * | 2013-07-05 | 2013-10-23 | 苏州天盛电线电缆有限公司 | Fireproof cable |
| CN103903722A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Low smoke halogen-free cable |
| CN104867596A (en) * | 2014-02-25 | 2015-08-26 | 安徽卓越电缆有限公司 | Metallurgical tensile power cable |
| CN104867562A (en) * | 2014-02-25 | 2015-08-26 | 安徽卓越电缆有限公司 | Copper conductor metallurgy cable |
| CN109346239A (en) * | 2018-10-08 | 2019-02-15 | 百通赫思曼工业（苏州）有限公司 | A kind of high soft superfine CANBUS communication cable of fire resisting and its production and processing method |
-
2011
- 2011-03-24 CN CN2011200790134U patent/CN202003741U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165240A (en) * | 2011-12-12 | 2013-06-19 | 上海上力电线电缆有限公司 | Capacity-increasing, energy-saving and inflaming-retarding power cable |
| CN103366879A (en) * | 2013-07-05 | 2013-10-23 | 苏州天盛电线电缆有限公司 | Fireproof cable |
| CN104867596A (en) * | 2014-02-25 | 2015-08-26 | 安徽卓越电缆有限公司 | Metallurgical tensile power cable |
| CN104867562A (en) * | 2014-02-25 | 2015-08-26 | 安徽卓越电缆有限公司 | Copper conductor metallurgy cable |
| CN103903722A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Low smoke halogen-free cable |
| CN109346239A (en) * | 2018-10-08 | 2019-02-15 | 百通赫思曼工业（苏州）有限公司 | A kind of high soft superfine CANBUS communication cable of fire resisting and its production and processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20130324 |