CN106448894A - Low-smoke halogen-free mining shielding rubber jacketed flexible cable - Google Patents
Low-smoke halogen-free mining shielding rubber jacketed flexible cable Download PDFInfo
- Publication number
- CN106448894A CN106448894A CN201610997458.8A CN201610997458A CN106448894A CN 106448894 A CN106448894 A CN 106448894A CN 201610997458 A CN201610997458 A CN 201610997458A CN 106448894 A CN106448894 A CN 106448894A
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- Prior art keywords
- wire core
- halogen
- wrapped
- cable
- flexible cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- Insulated Conductors (AREA)
Abstract
The invention relates to a low-smoke halogen-free mining shielding rubber jacketed flexible cable. The low-smoke halogen-free mining shielding rubber jacketed flexible cable comprises three power line cores and one ground line core, and is characterized in that each power line core comprises a power line core conductor; each power line core conductor is wrapped by one layer of reinforced non-woven fabric in a winding mode; the reinforced non-woven fabric is wrapped by an insulating layer in an extrusion mode; each insulating layer is wrapped by a first double-sided semiconductive cloth belt in a winding mode; the ground line core comprises a ground line core conductor; the ground line core conductor is wrapped by a semiconductive layer in an extrusion mode; the three power line cores and the ground line core are twisted to form a cable core; the twisting gap of the cable core is filled with an EVA filling layer; the cable core is wrapped by a second double-sided semiconductive cloth belt in a winding mode; the second double-sided semiconductive cloth belt is wrapped by a high-flame-retardance halogen-free belt in a winding mode; and the high-flame-retardance halogen-free belt is wrapped by a halogen-free jacket layer in an extrusion mode. The low-smoke halogen-free mining shielding rubber jacketed flexible cable is low-smoke and halogen-free, has high flame retardance, good shielding effect and high bending property, and can solve the problem that the existing cable produces a large amount of smoke and toxic gases in an open fire.
Description
Technical field
The present invention relates to a kind of low smoke and zero halogen mine-shield rubber sleeve flexible cable, belong to and join field of cable technology.
Background technology
China is the country of the few oil of coal more than, and explored coal reserves accounts for the 33.8% of world's coal reserves, can the amount of adopting
Occupy second, yield occupies No. 1 in the world.Because China's energy, raw material are nervous, current China various places Mining Enterprises, especially
It is coal mining enterprise's generally existing overyielding, this makes mining industry equipment generally existing overload operation state, this is to safety in production
Require to propose huge challenge.China's coal-mine natural disaster is heavier, and gas, water, fire are the major casualtys of China's coal-mine.Due to
Coal production environment and inclement condition, are pressed five big harm to be threatened by water, fire, gas, coal dust, ore deposit, add the many electricity in down-hole
Gas equipment is often in mobile status, installs with maintenance condition also far away from ground, its fault and accident rate are significantly larger than ground and set
Standby.In coal mining accident, account for nearly more than 50% by what electrical equipment caused, a series of this mining electric product again all must be by
Safe and reliable mine cable come to ensure run.
China's coal-mine cable, in the practice process in past more than 20 year, experienced by non-flame resistant to fire-retardant innovation,
Especially in MT386-1995《The test method of coal mine flame-retardant cable-flame retardant and decision rule》Since issuing and implementation so that
The fire resistance of coal mine cable has obtained effective control and has improved, and current coal mine flame-retardant cable is commonly used chloride
Polymer is as sheath material, such as chlorinated polyethylene（CPE）And neoprene（CR）.
, once burning, the amount of smoke that its burning discharges is very big, with IEC61034 or GB/ for chloride sheath material
The light transmittance that T17651-1998 measures is typically below 10%, and its HCl gas content discharging is very big, uses
The HCl content that IEC60754 1 or GB/T17650.1 1998 records is more than 100mg/g, even up to 200～300mg/g.
So dense smog adds stimulation and the septicemia of the respiratory system to people for the poisonous gass, in the narrow environment in down-hole,
Disaster-stricken personnel cannot escape the inferno at all.Record according to external fire-fighting white paper, this injures and deaths in " secondary disaster "
Personnel account for the 70%～80% of the whole fire number of casualties.In the number of casualties of China's coal-mine fire incident, suffer from " secondary calamity
The number ratio of evil " is also considerable.
Simultaneously in configuration aspects, this kind of cable is typically to be usually nonwoven layer outside cable core, and no any fire resistance, in fire
It is easy to burn built-in electrical insulation core in calamity, insulant is usually second third material, can aggravate to burn, produce more flue gases,
Unfavorable for rescuing.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of low smoke and zero halogen mine-shield rubber set soft
Cable, fire resistance is good, low cigarette, Halogen, and shield effectiveness is good, good bending property, can solve the problem that existing cable produces in naked light
A large amount of cigarettes and toxic gas problem.
The technical scheme providing according to the present invention, described low smoke and zero halogen mine-shield rubber sleeve flexible cable, including three power
Core and a wire core, is characterized in that：Described power wire core includes power wire core conductor, outer wrapped one layer of power wire core conductor
Reinforced non-woven fabrics, extrude a layer insulating outside reinforced non-woven fabrics, in the outer wrapped first two-sided semi-conductive cloth tape of insulating barrier；Institute
State wire core and include ground wire core conductor, outside ground wire core conductor, extrude semi-conductive layer；Described three power wire core and wire core twist
Synthesis cable core, the stranded gap of cable core adopts EVA packed layer to fill, in the outer wrapped second two-sided semi-conductive cloth tape of cable core, the
The outer wrapped high-flame-resistance halogen-free strap of two two-sided semi-conductive cloth tapes, extrudes the restrictive coating of Halogen outside high-flame-resistance halogen-free strap.
Further, described restrictive coating is made using EVA elastomeric material, and this EVA elastomeric material is matrix tree using EVA
Fat, ATH or MH is main flame retardant, and organosilicon is retardant synergist.
Further, the overlap of described second two-sided semi-conductive cloth tape and high-flame-resistance halogen-free strap puts up rate all not less than 15%.
Further, by string diameter, the copper wire bundle conjunction for 0.49mm forms described power wire core conductor, the power wire core that bundle closes
Conductor diameter is 18.4mm.
Further, the external diameter after the outer wrapping bag reinforced non-woven fabrics of described power wire core conductor is 18.7mm.
Further, the external diameter after the outer extruded insulation layer of described power wire core conductor and wrapped first two-sided semi-conductive cloth tape
For 25.9 ± 0.2mm.
Further, using string diameter, the copper wire bundle conjunction for 0.39mm forms described ground wire core conductor, the power wire core that bundle closes
Conductor diameter is 9.3mm.
Further, the external diameter of described wire core is 19.5 ± 0.6mm.
Further, the external diameter of described cable core is 57.8 ± 0.7mm.
Low smoke and zero halogen mine-shield rubber sleeve flexible cable of the present invention employs the new construction of cable, is surrounded with outside cable core
Semi-conductive cloth tape and high-flame-resistance halogen-free strap, can prevent naked light from entering inside cable core, cable employs EVA rubber sheath and EVA
Filling, the overall low-smoke non-halogen flame-retardant performance of cable is improved；In addition, the cable core after power wire core insulating barrier is outer and stranded
All there is two-sided semi-conductive cloth tape to improve the shielding propertiess of cable outward, do not increase the weight of cable and the bending reducing cable simultaneously
Performance.
Brief description
Fig. 1 is the structural representation of low smoke and zero halogen mine-shield rubber sleeve flexible cable of the present invention.
Specific embodiment
With reference to concrete accompanying drawing, the invention will be further described.
As shown in Figure 1：Described low smoke and zero halogen mine-shield rubber sleeve flexible cable includes power wire core conductor 1, reinforced nonwoven
Cloth 2, insulating barrier 3, the first two-sided semi-conductive cloth tape 4, ground wire core conductor 5, semi-conductive layer 6, EVA packed layer 7, second is two-sided partly leads
Electric strap 8, high-flame-resistance halogen-free strap 9, restrictive coating 10 etc..
As shown in figure 1, low smoke and zero halogen mine-shield rubber sleeve flexible cable of the present invention, including three power wire core and one
Wire core, the color of three power wire core is red, white, blue trichroism；Described power wire core includes power wire core conductor 1, power line
Core conductor 1 adopts 5 class copper conductors, and string diameter is 0.49mm, and totally 925 copper wire bundles close and form, power wire core conductor 1 external diameter that bundle closes
For 18.4mm, the outer wrapped one layer of reinforced non-woven fabrics 2 of power wire core conductor 1 that bundle closes, band is wrapped smooth, and no bottom pour ladle is wrapped
External diameter is 18.7mm afterwards；A layer insulating 3 is extruded, in the outer wrapped first two-sided semiconductive cloth of insulating barrier 3 outside reinforced non-woven fabrics 2
Band 4；Described wire core includes ground wire core conductor 5, and ground wire core conductor 5 adopts 5 class copper conductors, and string diameter is 0.39mm, totally 396 copper
Tow closes and forms, and ground wire core conductor 5 external diameter that bundle closes is 9.3mm, extrudes semi-conductive layer 6 outside ground wire core conductor 5；Described three
Power wire core and wire core are stranded side by side, and lay configuration is 0+4, and the stranded gap of power wire core and wire core adopts EVA to fill
Layer 7 filling, wrapped one layer of second two-sided semi-conductive cloth tape 8 outside the lay configuration of power wire core and wire core, two-sided second
The outer wrapped one layer of high-flame-resistance halogen-free strap 9 of semi-conductive cloth tape 8, extrudes one layer of restrictive coating 10 outside high-flame-resistance halogen-free strap 9.
Described restrictive coating 10 is made using EVA elastomeric material, and this EVA elastomeric material adopts EVA（Ethylene-vinyl acetate copolymerization
Thing）For matrix resin, ATH（Aluminium hydroxide）Or MH（Magnesium hydroxide）For main flame retardant, organosilicon is retardant synergist, not halogen
Element, and there is fire resistance, thus realizing the performance of low smoke and zero halogen in naked light.
The overlap of described second two-sided semi-conductive cloth tape 8 and high-flame-resistance halogen-free strap 9 puts up rate all not less than 15%, and two-sided half
Conductive strap has function of shielding, does not affect the bending property of cable simultaneously, and high-flame-resistance halogen-free strap has very strong fire resistance,
In combustion, can insulated jacket layer and cable core, prevent naked light enter cable core inside, reduce cable core interior insulation core burning
Produce the probability of flue gas.
All it is surrounded with two-sided semi-conductive cloth tape outside described power wire core and cable core, so can improve the shielding of cable
Performance, has the characteristics that compared with by the way of metallic shield that softness is good, also reduces the weight of cable simultaneously simultaneously.
The production process of the present invention is as follows：
First, the making of conductor：
（1）Power wire core conductor 1 adopts 5 class copper conductors, and string diameter is 0.49mm, and totally 925 copper wire bundles close and form, the power that bundle closes
Cable core conductor 1 external diameter is 18.4mm, and in the outer wrapped one layer of reinforced non-woven fabrics of power wire core conductor 1, band is wrapped smooth, no leaks
Bag, wrapped rear external diameter is 18.7mm；
（2）Ground wire core conductor 5 adopts 5 class copper conductors, and string diameter is 0.39mm, and totally 396 copper wire bundles close and form, the power line that bundle closes
Core conductor 5 external diameter is 9.3mm.
2nd, the making of insulating barrier：
（1）The insulating barrier 3 of power wire core adopts the ethylene propylene rubber insulated mixture of low dielectric loss, and color is red, white, blue；Using continuous
The technique of sulfuration, speed of production is 8m/min, and sulfuration air pressure is 1MPa, and insulation thickness is 2.7 ± 0.1mm, the degree of eccentricity≤20%,
Around the first two-sided semi-conductive cloth tape 4 of double-baging, wrapped width of putting up is not less than 5mm to the outer overlap of insulated wire cores after sulfuration, wrapped
Power wire core external diameter afterwards is 25.9 ± 0.2mm；
（2）The semi-conductive layer 6 of wire core adopts XD-1 type semi-conductive adhesive to adopt the technique of continuous vulcanization, and speed of production is 10m/
Min, sulfuration air pressure is 1Mpa, and thickness is 5.1 ± 0.3mm, degree of eccentricity no requirement (NR), and the external diameter of wire core is 19.5 ± 0.6mm.
3rd, the making of cable core：
（1）Cabling structure is 0+4, and during stranding, three power wire core press red, white, blue order stranding together with wire core, and ensure
Each core even tension, center and surrounding is filled using EVA packed layer 7 it is ensured that cable core rounding；
（2）The outer overlapping wrapped a layer thickness of cable core is 0.3mm, and width is the second two-sided semi-conductive cloth tape 8 and the thick layer of 70mm
Spend for 0.3mm, width is the high-flame-resistance halogen-free strap 9 of 70mm, overlap is put up rate and is not less than 15%, lapping direction is left-hand, wrapped flat
Whole, no bottom pour ladle, stranding actual pitch controls 14 times of no more than laying up diameter, that is,：Cable core pitch is 711-790mm, outside cable core
Footpath is 57.8 ± 0.7mm.
4th, the making of sheath：
Restrictive coating 10 adopts yellow EVA yellow jacket rubber material, is closely extruded on cable core, jacket surface is smooth, rounding,
Color and luster is essentially the same, the visible pore of section no eyesight and impurity.
Claims (9)
1. a kind of low smoke and zero halogen mine-shield rubber sleeve flexible cable, including three power wire core and a wire core, is characterized in that：Institute
State power wire core and include power wire core conductor（1）, power wire core conductor（1）Wrapped one layer of reinforced non-woven fabrics outward（2）, reinforced
Non-woven fabrics（2）Extrude outward a layer insulating（3）, in insulating barrier（3）Wrapped first two-sided semi-conductive cloth tape outward（4）；Described ground wire
Core includes ground wire core conductor（5）, in ground wire core conductor（5）Extrude outward semi-conductive layer（6）；Described three power wire core and wire core
It is twisted into cable core, the stranded gap of cable core adopts EVA packed layer（7）Filling, in the outer wrapped second two-sided semi-conductive cloth tape of cable core
（8）, in the second two-sided semi-conductive cloth tape（8）Wrapped high-flame-resistance halogen-free strap outward（9）, in high-flame-resistance halogen-free strap（9）Extrude outward Halogen
Restrictive coating（10）.
2. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：Described restrictive coating（10）Using
EVA elastomeric material is made, and it is matrix resin that this EVA elastomeric material adopts EVA, ATH or MH is main flame retardant, and organosilicon is fire-retardant
Synergist.
3. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：Described second two-sided semiconductive
Strap（8）And high-flame-resistance halogen-free strap（9）Overlap put up rate all not less than 15%.
4. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：Described power wire core conductor
（1）Closed by the copper wire bundle for 0.49mm for the string diameter and form, the power wire core conductor that bundle closes（1）External diameter is 18.4mm.
5. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：Described power wire core conductor
（1）Outer wrapping bag reinforced non-woven fabrics（2）External diameter afterwards is 18.7mm.
6. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：Described power wire core conductor
（1）Outer extruded insulation layer（3）With the wrapped first two-sided semi-conductive cloth tape（4）External diameter afterwards is 25.9 ± 0.2mm.
7. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：Described ground wire core conductor（5）
Closed using the copper wire bundle for 0.39mm for the string diameter and form, the power wire core conductor that bundle closes（5）External diameter is 9.3mm.
8. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：The external diameter of described wire core is
19.5±0.6mm.
9. low smoke and zero halogen mine-shield rubber sleeve flexible cable as claimed in claim 1, is characterized in that：The external diameter of described cable core is
57.8±0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997458.8A CN106448894A (en) | 2016-11-14 | 2016-11-14 | Low-smoke halogen-free mining shielding rubber jacketed flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997458.8A CN106448894A (en) | 2016-11-14 | 2016-11-14 | Low-smoke halogen-free mining shielding rubber jacketed flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448894A true CN106448894A (en) | 2017-02-22 |
Family
ID=58207668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997458.8A Pending CN106448894A (en) | 2016-11-14 | 2016-11-14 | Low-smoke halogen-free mining shielding rubber jacketed flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448894A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714419A (en) * | 2009-12-28 | 2010-05-26 | 兴乐电缆有限公司 | Novel composite reinforced rubber sleeve flexible cable for coal mining machine |
| GB2471322B (en) * | 2009-06-26 | 2012-12-12 | Tyco Electronics Ltd Uk | High performance, high temperature lightweight insulating film, tape or sheath |
| CN103811114A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Halogen-free low-smoke low-toxicity ethylene propylene rubber insulating marine environment-friendly cable with polyolefin sheath |
| CN204440970U (en) * | 2015-03-30 | 2015-07-01 | 安徽华能电缆集团有限公司 | A kind of high voltage shore power cable |
-
2016
- 2016-11-14 CN CN201610997458.8A patent/CN106448894A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2471322B (en) * | 2009-06-26 | 2012-12-12 | Tyco Electronics Ltd Uk | High performance, high temperature lightweight insulating film, tape or sheath |
| CN101714419A (en) * | 2009-12-28 | 2010-05-26 | 兴乐电缆有限公司 | Novel composite reinforced rubber sleeve flexible cable for coal mining machine |
| CN103811114A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Halogen-free low-smoke low-toxicity ethylene propylene rubber insulating marine environment-friendly cable with polyolefin sheath |
| CN204440970U (en) * | 2015-03-30 | 2015-07-01 | 安徽华能电缆集团有限公司 | A kind of high voltage shore power cable |
Non-Patent Citations (1)
| Title |
|---|
| 贾修伟: "《纳米阻燃材料》", 31 January 2005 * |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |