CN205177451U - There is not steamed low fire -retardant metallic shield supervision type rubber of cigarette cover flexible cable - Google Patents
There is not steamed low fire -retardant metallic shield supervision type rubber of cigarette cover flexible cable Download PDFInfo
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- CN205177451U CN205177451U CN201520918323.9U CN201520918323U CN205177451U CN 205177451 U CN205177451 U CN 205177451U CN 201520918323 U CN201520918323 U CN 201520918323U CN 205177451 U CN205177451 U CN 205177451U
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Abstract
The utility model discloses a there is not steamed low fire -retardant metallic shield supervision type rubber of cigarette cover flexible cable, including a cable core, the cable core form by the transposition of three power core, it does not have steamed semiconduction packing area to pack in the space of cable core department, and crowded package does not have the fire -retardant area of bittern outside the cable core, is not having steamed fire -retardant outband inner sheath, is equipped with at the inner sheath and keeps watch on the layer, at outmost crowded packet of oversheath of cable, power core constitute at the conductor in its bosom and conductor shield, insulating layer, semiconduction insulation screen, nylon semiconduction area, the tinned copper wire shielding layer that sets gradually outside the conductor by setting up. This cable is used for in the pit the power of phase shifting transformer and similar equipment to connect, possesses excellent shielding property, and is fire -retardant, and wear -resisting shocking resistance does not have steamed, low cigarette, hypotoxicity ability to keep the smooth and easy power transmission of cable, satisfy phase shifting transformer's normal operation in the pit.
Description
Technical field
The utility model relates to electric wire field, especially refers to a kind of LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable.
Background technology
Along with the raising of coal mining machinery and electrifing degree, the ratio that electrical fire occurs also increases year by year, low-voltage cable catches fire, mining transformer catches fire, the stringing formula electric car arc ignition combustibles electrical fire such as to catch fire happens occasionally, once breaking out of fire, the numerous production equipment in down-hole destroys, and cause other a series of mine accident, there is very large harmfulness, the electric fire incident of the mine repeatedly occurred in recent years, significant threat is brought to underground coal mine safety in production, and cause heavy economic losses, therefore, the safety Design of coal mine cable is very important.
Coal Mine India-rubber Cable experienced by by non-flame resistant in type selecting process, fire-retardant, security performance to low smoke and low halogen promotes, but no matter be that colliery is fire-retardant, or colliery low smoke and low halogen Plastic-sheathed Cable, its sheath material adopts chlorine-containing polymer material mostly, once meet fire burning, its amount of smoke discharged is very large, and the release of adjoint hydrogen chloride gas, the toxic gas such as hydrogen sulfide and carbon monoxide is produced when adding fire burning, stimulate the respiratory system of people and cause septicemia, in addition subsurface environment is comparatively narrow, disaster affected people is difficult to escape the inferno in time.In China's coal-mine fire incident, the number suffering from this " secondary injury " is also considerable.For this reason, study the needs that a kind of colliery low smoke, zero halogen environment-friendly cable is safety of coal mines, also represent the developing direction of mining product, the low cigarette of mining cable, Halogen, lowly to poison, to improving the security performance of product, ensureing the safety in production in colliery further, will play very important effect, be from the again technological revolution of mining cable product after fire resistance in security performance.
Stand in the angle ensureing safety of coal mines, develop a kind of mining halogen-free low-smoke flame-retardant environment-friendly type rubber sleeve flexible cable, meet fire-retardant, the low cigarette of Coal Electricity cable, low toxicity requires just to seem particularly necessity, and the research and development of low smoke, zero halogen performance to mining halogen-free low-smoke flame-retardant metal shield monitoring type rubber sleeve flexible cable conductor screen material, insulating layer material, insulation shielding layer material and interior oversheath, and cable metallic screens structure, pilot wire structural design are the keys of mining halogen-free low-smoke flame-retardant metal shield monitoring type rubber sleeve flexible cable.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, in order to overcome the deficiencies in the prior art, the utility model provides this kind of LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable, the power supply that this cable is used for underground moving transformer and similar devices connects, and possesses excellent shielding properties, fire-retardant, wear resistant and impact resistant, Halogen, low cigarette, low toxicity performance, and keep that cable is smooth and easy to transmit electric power, meet the normal operation of underground moving transformer.
A kind of LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable described in the utility model, comprises cable core, and described cable core forms by three power wire core are stranded; Halogen semiconducting filler band is filled in the gap of cable core, halogen-free flameproof band is extruded outside cable core, halogen-free low-smoke high-flame rubber inner sheath is extruded outside halogen-free flameproof band, be provided with supervision layer at halogen-free low-smoke high-flame rubber inner sheath, extrude LSOH anti-flaming rubber oversheath at the outermost layer of cable; Described power wire core by be arranged on its bosom conductor and be successively set on outside conductor with Ethylene Propylene Terpolymer be base-material cross-linking type low smoke, zero halogen conductor shield, with Ethylene Propylene Terpolymer be base-material cross-linking type in press ethylene-propylene rubber insulated layer, formed with acetate ethylene copolymer and the acrylonitrile-butadiene rubber peelable cross-linking type low smoke, zero halogen semi-conductive insulation shield layer that is base-material, nylon semi-conductive tape, tinned copper wire screen.
Further improvement, described supervision layer is made up of nylon semi-conductive tape and three pilot wires be arranged in nylon semi-conductive tape.
Further improvement, described pilot wire adopts tin-coated copper tow to close or braiding forms.
A preparation method for LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable, the concrete steps of the method are as follows:
1) first the robber materials of conductor shield, second third insulating barrier, insulation screen, inner restrictive coating, external sheath layer is processed into respectively by banbury the elastomeric compound rubber meeting and connect sulphur and extrude;
2) rubber production line layering once-forming is squeezed by company's sulphur that catenary suspension type continuous vulcanization is three-layer co-extruded outward at power wire core conductor, once extrude conductor shield, ethylene-propylene rubber insulated layer and insulation screen, extrusion temperature controls at 70 DEG C ~ 90 DEG C, production line speed control is built in 5 ~ 10 ms/min, extrude rear core in airtight jet chimney heating continuous vulcanization, jet chimney air pressure controls at 0.9MPa ~ 1.2MPa; Form power wire core through water cooled pipeline cooling again after sulfuration, cooling section coolant-temperature gage controls at 30 DEG C ~ 50 DEG C;
3) at the outer wrapped one deck nylon semi-conductive tape of power wire core, rate 20% ~ 25% is put up;
4) be then woven in outside nylon semiconductive belt with tinned copper wire, form metal screen layer, count > 80%;
5) then with back-twisting cabler, three of woven metal screen layer power wire core are twisted into cable core, laying up pitch control range is the laying up diameter of 10 ~ 12 times;
6) then at the wrapped 2 layers of halogen-free flameproof band of cable core external series gap, clearance rate 20% ~ 25%.
7) then connect sulphur by catenary suspension type continuous vulcanization and squeeze rubber production line and extrude halogen-free low-smoke high-flame inner sheath rubber cable Halogen twining package tape is outer; Extrusion temperature controls at 75 DEG C ~ 88 DEG C, and production line speed control is built in 5 ~ 8 ms/min, and core is in airtight jet chimney heating continuous vulcanization, and jet chimney air pressure controls at 0.9MPa ~ 1.2MPa; Again through water cooled pipeline cooling after sulfuration, cooling section coolant-temperature gage controls at 30 DEG C ~ 50 DEG C;
8) then at the outer overlapping wrapped one deck halogen-free high flame-retardant band of cable inner sheath;
9) then form supervision layer outward at cable halogen-free high flame-retardant band: wrapped nylon semi-conductive tape+3 pilot wire+nylon semi-conductive tape, 3 pilot wires are uniformly distributed on cable core;
10) then the outer overlapping wrapped one deck halogen-free high flame-retardant band again of layer is monitored at cable;
11) finally connect sulphur by catenary suspension type continuous vulcanization and squeeze rubber production line and extrude the high anti-tear oversheath rubber of LSOH anti-flaming cable halogen-free high flame-retardant band is outer.Extrusion temperature controls at 75 DEG C ~ 88 DEG C, and production line speed control is built in 5 ~ 8 ms/min, and core is in airtight jet chimney heating continuous vulcanization, and jet chimney air pressure controls at 0.9MPa ~ 1.2MPa; Again through water cooled pipeline cooling after sulfuration, cooling section coolant-temperature gage controls at 30 DEG C ~ 50 DEG C.
After adopting technique scheme, the beneficial effects of the utility model are:
1. this cable insulation core adopts Halogen conductor screen rubber, Halogen second third insulation rubber and Halogen semiconductive crosslinkable peelable insulation shielding rubber three-layer co-extruded, the Halogen conductor screen rubber researched and developed, Halogen semiconductive crosslinkable peelable insulation shielding rubber its specific insulation≤100 Ω cm, Halogen performance: pH value >=4.3, conductivity weighted value≤10 μ s/mm; Dielectric loss tan δ (95 ~ 100 DEG C) maximum of Halogen second third insulation rubber is 400 × 104, and specific insulation minimum value is 1016 Ω cm, and therefore, insulating resistance of cable excellent performance, can guarantee that the local discharging level of cable is excellent, discharge capacity≤10Pc.
2, every root power wire core adopts tinned copper wire braiding structure; as earth connection; be uniformly distributed 3 pilot wires outside cable inner sheath and form monitoring circuit together with cable grounding line; the continuous monitoring of the ground system integrity that achieves a butt joint; when cable is subject to extrinsic damage, when fracture occurs earth connection, make the action of supervision protector by the change of monitoring circuit D.C. resistance; cut off the electricity supply in time, guarantee the use safety of cable in down-hole.
3, before inner restrictive coating is outer and oversheath extrudes, design each overlap wrapped one deck halogen-free high flame-retardant band, form protective layer when cable fire, can effectively stop spreading of flame.
4, cable inner sheath, external sheath layer adopt acetate ethylene copolymer (EVA) be base-material flame-proof cross-linking type halogen-free low-smoke high-flame, high anti-tear elastomer rubber, tensile strength >=the 11MPa of the high anti-tear elastomer rubber of LSOH anti-flaming, elongation at break >=300%, anti-tear >=5.0N/mm, oxygen index >=35, by inner sheath closely extruding and oversheath closely extruding supervision layer cable core, and effective stop of halogen-free high flame-retardant band, make cable-flame retardant performance meet the test of IEC60332-3-22:2000 bunchy burning category-A.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Embodiment
As shown in Figure 1, a kind of LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable described in the utility model, comprises cable core, and described cable core forms by three power wire core are stranded; Halogen semiconducting filler band 7 is filled in the gap of cable core, halogen-free flameproof band 8 is extruded outside cable core, the halogen-free low-smoke high-flame rubber inner sheath 9 that thickness is 2.0mm is extruded outside halogen-free flameproof band, be provided with at halogen-free low-smoke high-flame rubber inner sheath and monitor layer 10, extrude at the outermost layer of cable the LSOH anti-flaming rubber oversheath 11 that thickness is 5.5mm; Described power wire core by be arranged on the conductor 1 in its bosom and the thickness be successively set on outside conductor 1 be 0.7mm take Ethylene Propylene Terpolymer as the cross-linking type low smoke, zero halogen conductor shield 2 of base-material, thickness to be 4.5mm with Ethylene Propylene Terpolymer be being formed with acetate ethylene copolymer and the acrylonitrile-butadiene rubber peelable cross-linking type low smoke, zero halogen semi-conductive insulation shield layer 4 that is base-material, nylon semi-conductive tape 5, tinned copper wire screen 6 of pressing ethylene-propylene rubber insulated layer 3, thickness to be 0.7mm in the cross-linking type of base-material; Described supervision layer 10 is made up of nylon semi-conductive tape and three pilot wires 12 be arranged in nylon semi-conductive tape, and pilot wire 12 adopts tin-coated copper tow to close or braiding forms.
A preparation method for LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable, the concrete steps of the method are as follows:
1) first the robber materials of conductor shield, second third insulating barrier, insulation screen, inner restrictive coating, external sheath layer is processed into respectively by banbury the elastomeric compound rubber meeting and connect sulphur and extrude;
2) rubber production line layering once-forming is squeezed by company's sulphur that catenary suspension type continuous vulcanization is three-layer co-extruded outward at power wire core conductor, once extrude conductor shield, ethylene-propylene rubber insulated layer and insulation screen, extrusion temperature controls at 70 DEG C ~ 90 DEG C, production line speed control is built in 5 ~ 10 ms/min, extrude rear core in airtight jet chimney heating continuous vulcanization, jet chimney air pressure controls at 0.9MPa ~ 1.2MPa; Form power wire core through water cooled pipeline cooling again after sulfuration, cooling section coolant-temperature gage controls at 30 DEG C ~ 50 DEG C;
3) at the outer wrapped one deck nylon semi-conductive tape of power wire core, rate 20% ~ 25% is put up;
4) be then woven in outside nylon semiconductive belt with tinned copper wire, form metal screen layer, count > 80%;
5) then with back-twisting cabler, three of woven metal screen layer power wire core are twisted into cable core, laying up pitch control range is the laying up diameter of 10 ~ 12 times;
6) then at the wrapped 2 layers of halogen-free flameproof band of cable core external series gap, clearance rate 20% ~ 25%.
7) then connect sulphur by catenary suspension type continuous vulcanization and squeeze rubber production line and extrude halogen-free low-smoke high-flame inner sheath rubber cable Halogen twining package tape is outer; Extrusion temperature controls at 75 DEG C ~ 88 DEG C, and production line speed control is built in 5 ~ 8 ms/min, and core is in airtight jet chimney heating continuous vulcanization, and jet chimney air pressure controls at 0.9MPa ~ 1.2MPa; Again through water cooled pipeline cooling after sulfuration, cooling section coolant-temperature gage controls at 30 DEG C ~ 50 DEG C;
8) then at the outer overlapping wrapped one deck halogen-free high flame-retardant band of cable inner sheath;
9) then form supervision layer outward at cable halogen-free high flame-retardant band: wrapped nylon semi-conductive tape+3 pilot wire+nylon semi-conductive tape, 3 pilot wires are uniformly distributed on cable core;
10) then the outer overlapping wrapped one deck halogen-free high flame-retardant band again of layer is monitored at cable;
11) finally connect sulphur by catenary suspension type continuous vulcanization and squeeze rubber production line and extrude the high anti-tear oversheath rubber of LSOH anti-flaming cable halogen-free high flame-retardant band is outer.Extrusion temperature controls at 75 DEG C ~ 88 DEG C, and production line speed control is built in 5 ~ 8 ms/min, and core is in airtight jet chimney heating continuous vulcanization, and jet chimney air pressure controls at 0.9MPa ~ 1.2MPa; Again through water cooled pipeline cooling after sulfuration, cooling section coolant-temperature gage controls at 30 DEG C ~ 50 DEG C.
Wherein, specific insulation≤100 Ω the cm of conductor screen rubber and insulation shielding rubber, insulating barrier adopts Ethylene Propylene Terpolymer to be press second third insulation rubber in the cross-linking type of base-material, and dielectric loss tan δ (95 ~ 100 DEG C) maximum of second third insulation rubber is 400 × 104.Inner sheath adopts acetate ethylene copolymer (EVA) to be base-material flame-proof cross-linking type halogen-free low-smoke high-flame rubber, oxygen index >=36, external sheath layer adopts acetate ethylene copolymer (EVA) for the high anti-tear rubber of base-material flame-proof cross-linking type LSOH anti-flaming, tensile strength >=the 11MPa of low smoke, zero halogen elastomer rubber, elongation at break >=300%, anti-tear >=5.0N/mm, oxygen index >=35.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (3)
1. a LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable, comprises cable core, it is characterized in that, described cable core forms by three power wire core are stranded; Halogen semiconducting filler band (7) is filled in the gap of cable core, halogen-free flameproof band (8) is extruded outside cable core, halogen-free low-smoke high-flame rubber inner sheath (9) is extruded outside halogen-free flameproof band, be provided with at halogen-free low-smoke high-flame rubber inner sheath and monitor layer (10), extrude LSOH anti-flaming rubber oversheath (11) at the outermost layer of cable; Described power wire core by be arranged on its bosom conductor (1) and be successively set on conductor (1) outward with Ethylene Propylene Terpolymer be base-material cross-linking type low smoke, zero halogen conductor shield (2), with Ethylene Propylene Terpolymer be base-material cross-linking type in press ethylene-propylene rubber insulated layer (3), formed with acetate ethylene copolymer and acrylonitrile-butadiene rubber peelable cross-linking type low smoke, zero halogen semi-conductive insulation shield layer (4) that is base-material, nylon semi-conductive tape (5), tinned copper wire screen (6).
2. LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable according to claim 1, is characterized in that, described supervision layer (10) is made up of nylon semi-conductive tape and three pilot wires (12) be arranged in nylon semi-conductive tape.
3. LSOH anti-flaming metal shield monitoring type rubber sleeve flexible cable according to claim 2, is characterized in that, described pilot wire (12) adopts tin-coated copper tow to close or braiding forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520918323.9U CN205177451U (en) | 2015-11-18 | 2015-11-18 | There is not steamed low fire -retardant metallic shield supervision type rubber of cigarette cover flexible cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520918323.9U CN205177451U (en) | 2015-11-18 | 2015-11-18 | There is not steamed low fire -retardant metallic shield supervision type rubber of cigarette cover flexible cable |
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| CN205177451U true CN205177451U (en) | 2016-04-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427932A (en) * | 2015-11-18 | 2016-03-23 | 无锡市明珠电缆有限公司 | Halogen-free low-smoke and flame-retardant metallic shield monitoring type rubber jacketed flexible cable and production method therefor |
| CN106229068A (en) * | 2016-08-23 | 2016-12-14 | 江苏华亚电缆有限公司 | Supervision type seabed midium voltage cable |
| CN110428929A (en) * | 2019-08-14 | 2019-11-08 | 远东电缆有限公司 | A kind of airport charging flexible temperature control cable and its production technology |
-
2015
- 2015-11-18 CN CN201520918323.9U patent/CN205177451U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427932A (en) * | 2015-11-18 | 2016-03-23 | 无锡市明珠电缆有限公司 | Halogen-free low-smoke and flame-retardant metallic shield monitoring type rubber jacketed flexible cable and production method therefor |
| CN106229068A (en) * | 2016-08-23 | 2016-12-14 | 江苏华亚电缆有限公司 | Supervision type seabed midium voltage cable |
| CN110428929A (en) * | 2019-08-14 | 2019-11-08 | 远东电缆有限公司 | A kind of airport charging flexible temperature control cable and its production technology |
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