CN103545032A - Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below - Google Patents

Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below Download PDF

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Publication number
CN103545032A
CN103545032A CN201310532419.7A CN201310532419A CN103545032A CN 103545032 A CN103545032 A CN 103545032A CN 201310532419 A CN201310532419 A CN 201310532419A CN 103545032 A CN103545032 A CN 103545032A
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CN
China
Prior art keywords
core
cable
frequency conversion
coal mine
outside
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310532419.7A
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Chinese (zh)
Inventor
虞文品
陈小洋
张超超
胡光祥
李慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XINGLE CABLE CO Ltd
Original Assignee
XINGLE CABLE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XINGLE CABLE CO Ltd filed Critical XINGLE CABLE CO Ltd
Priority to CN201310532419.7A priority Critical patent/CN103545032A/en
Publication of CN103545032A publication Critical patent/CN103545032A/en
Pending legal-status Critical Current

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Abstract

Provided is a cable for a coal mine frequency conversion device with the voltage of 1.9/3.3kv and below. The cable for the coal mine frequency conversion device with the voltage of 1.9/3.3kv and below comprises a cable core and an outer sheath, wherein the cable core comprises a plurality of power line cores and a plurality of control line cores with ground wires, the power line cores and the control line cores with the ground wires are twisted to form the cable core, a lining layer, a braided copper wire shielding layer, an aluminum plastic composite band shielding layer and the outer sheath are arranged outside the cable core in sequence from inside to outside, each power line core comprises a power line core conductor, an insulting layer A which wraps the power line core conductor in a pressing mode, and an insulating shielding layer which wraps the insulating layer A, and each control line core with the ground wire comprises a control line core conductor, an insulating layer B which wraps the control line core conductor in a pressing mode, a ground wire core which is sparsely wound on the insulating layer B, and a semi-conducting layer which wraps the ground wire core. The cable for the coal mine frequency conversion device with the voltage of 1.9/3.3kv and below has the advantages that the shielding performance is good, an ideal shielding factor is no larger than 0.8, and the defects that an existing variable-frequency cable is poor in shielding performance, and is without the control line cores are overcome.

Description

1.9/3.3kV and following coal mine frequency conversion device cable
Technical field
The present invention relates to a kind of cable, be specifically related to a kind of rated voltage 1.9/3.3kV and following rubber jacketed flexible cable for coal mine frequency conversion device.
Background technology
Rubber jacketed flexible cable for coal mine frequency conversion device requires cable to have oil resistant, the characteristic such as wear-resistant, fire-retardant, and has good shielding properties when being subject to the mechanical stress effects such as frequent bending, stretching.
Publication number is that the Chinese patent of 102262937A discloses " a kind of rubber jacketed flexible cable for coal mine frequency conversion device ", this cable primary structure comprises: some power cores and ground core, power core and ground core twisted synthesizing cable core, at the shielding of cable core outer setting proof copper-wire braided and oversheath.
Publication number is that the Chinese patent of 202183246U discloses " converter plant rubber sleeve flexible cable for a kind of colliery ", and primary structure comprises: inserts, three strands of power cores and three strands of control cores; Described power core comprises a power line core conductor, at described power line core conductor, is provided with a power line core insulation layer outward, at described power line core insulation layer, is provided with semiconductor electric screen layer outward; Described control core comprises a control line core conductor, at described control line core conductor, is provided with a control line core insulation layer outward, at described control line core insulation layer, is provided with semiconductor electric screen layer outward.
Yet nowadays some RHVC as coal-winning machine etc. except want dynamic core and core, also need to have several control cores, as directly twisted into control core, will reduce structural stability and the resistance to bend(ing) energy of cable in above structure.And under the environment being on the rise in electromagnetic interference, the shield effectiveness of said structure is also difficult to meet instructions for use.
Summary of the invention
The object of this invention is to provide a kind of 1.9/3.3kV and following coal mine frequency conversion device cable that can solve above-mentioned two problems.
For achieving the above object, the solution that the present invention takes is: a kind of 1.9/3.3kV and following coal mine frequency conversion device cable, comprise cable core and oversheath, cable core comprises some strands of power cores and the some strands of control cores with ground wire, power core and with the control core twisted synthesizing cable core of ground wire, in cable core outside, set gradually from inside to outside inner covering, proof copper-wire braided screen, aluminium-plastic tape screen and oversheath, power core comprises power line core conductor, be extruded in the insulating barrier A outside power line core conductor and be coated on the insulation screen outside insulating barrier A, control core with ground wire comprises control line core conductor, be extruded in the insulating barrier B of control line core conductor outside, dredge around the ground core of insulating barrier B outside and be coated on the semi-conductive layer of core outside, ground.
This cable is mainly used in coal mine frequency conversion device and by control system, powers or connect use, there is stronger shielding properties, desirable shielding factor is not more than 0.8, and in access control core, guaranteed structural stability and the resistance to bend(ing) energy of cable, solved the shortcomings such as existing frequency-changing cable shielding properties is poor, nothing control core.
This cable compared with prior art has following some advantage: the shielding properties of (1) cable is superior, and desirable shielding factor is not more than 0.8; (2) the ground core of cable be dredge around form be placed in outside control line core conductor, in access control core, guarantee that cable has good structural stability and resistance to bend(ing) energy; (3) this cable has fire resistance simultaneously.
Accompanying drawing explanation
Fig. 1 is the generalized section of this enforcement.
In figure: 1, power line core conductor, 2, insulating barrier A, 3, insulation screen, 4, control line core conductor, 5, insulating barrier B, 6, core, 7, semi-conductive layer, 8, inner covering, 9, proof copper-wire braided screen, 10, aluminium-plastic tape screen, 11, oversheath.
Embodiment
Below in conjunction with illustrative embodiments and accompanying drawing thereof, further illustrate the present invention, but embodiment should not be construed as to concrete restriction of the present invention.
Referring to Fig. 1, a kind of rubber jacketed flexible cable for coal mine frequency conversion device, comprise cable core and oversheath 11, cable core comprises some strands of power cores and the some strands of control cores with ground wire, power core and with the control core twisted synthesizing cable core of ground wire, in cable core outside, set gradually from inside to outside inner covering 8, proof copper-wire braided screen 9, aluminium-plastic tape screen 10 and oversheath 11, power core comprises power line core conductor 1, be extruded in the insulating barrier A2 outside power line core conductor 1 and be coated on the insulation screen 3 outside insulating barrier A2, control core with ground wire comprises control line core conductor 4, be extruded in the insulating barrier B5 of control line core conductor 4 outsides, dredge around the ground core 6 of insulating barrier B5 outside and the semi-conductive layer 7 that is coated on core 6 outsides, ground.
Referring to Fig. 1, described insulating barrier A2, insulation screen 3, insulating barrier B5, semi-conductive layer 7, inner covering 8, oversheath 11 all adopt flame retardant type material.
Referring to Fig. 1, described power core is respectively three strands with the control core with ground wire.
The above is only the preferred embodiment of the present invention, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.

Claims (3)

1. a 9/3.3kV and following coal mine frequency conversion device cable, comprise cable core and oversheath (11), it is characterized in that: cable core comprises some strands of power cores and the some strands of control cores with ground wire, power core and with the control core twisted synthesizing cable core of ground wire, in cable core outside, set gradually from inside to outside inner covering (8), proof copper-wire braided screen (9), aluminium-plastic tape screen (10) and oversheath (11), power core comprises power line core conductor (1), be extruded in the outer insulating barrier A (2) of power line core conductor (1) and be coated on the outer insulation screen (3) of insulating barrier A (2), control core with ground wire comprises control line core conductor (4), be extruded in the outside insulating barrier B (5) of control line core conductor (4), dredge around the outside ground core (6) of insulating barrier B (5) and be coated on the outside semi-conductive layer (7) of ground core (6).
2. 1.9/3.3kV according to claim 1 and following coal mine frequency conversion device cable, is characterized in that: described insulating barrier A (2), insulation screen (3), insulating barrier B (5), semi-conductive layer (7), inner covering (8), oversheath (11) all adopt flame retardant type material.
3. 1.9/3.3kV according to claim 1 and following coal mine frequency conversion device cable, is characterized in that: described power core is respectively three strands with the control core with ground wire.
CN201310532419.7A 2013-10-24 2013-10-24 Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below Pending CN103545032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310532419.7A CN103545032A (en) 2013-10-24 2013-10-24 Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310532419.7A CN103545032A (en) 2013-10-24 2013-10-24 Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below

Publications (1)

Publication Number Publication Date
CN103545032A true CN103545032A (en) 2014-01-29

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CN201310532419.7A Pending CN103545032A (en) 2013-10-24 2013-10-24 Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109036618A (en) * 2018-08-08 2018-12-18 远东电缆有限公司 Coal mining machine converter plant soft rubber cable
CN109166677A (en) * 2018-08-08 2019-01-08 远东电缆有限公司 Frequency converting cable used in coal mine production technology

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201170973Y (en) * 2008-01-10 2008-12-24 佛山市顺德区顺达电脑厂有限公司 Low-voltage differential signal line
CN201758014U (en) * 2010-05-10 2011-03-09 兴乐集团宁夏电缆有限公司 Frequency-conversion generator cable with a control line core
CN202422804U (en) * 2012-01-10 2012-09-05 江西电缆有限责任公司 Flexible 6-kilovolt trailing cable for strip mine
CN203150163U (en) * 2013-01-11 2013-08-21 安徽龙庵电缆集团有限公司 Flame-retardant frequency-variable cable for coal mining machines
CN203520967U (en) * 2013-10-24 2014-04-02 兴乐电缆有限公司 1.9/3.3 kV and below cable for coal mine frequency conversion apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201170973Y (en) * 2008-01-10 2008-12-24 佛山市顺德区顺达电脑厂有限公司 Low-voltage differential signal line
CN201758014U (en) * 2010-05-10 2011-03-09 兴乐集团宁夏电缆有限公司 Frequency-conversion generator cable with a control line core
CN202422804U (en) * 2012-01-10 2012-09-05 江西电缆有限责任公司 Flexible 6-kilovolt trailing cable for strip mine
CN203150163U (en) * 2013-01-11 2013-08-21 安徽龙庵电缆集团有限公司 Flame-retardant frequency-variable cable for coal mining machines
CN203520967U (en) * 2013-10-24 2014-04-02 兴乐电缆有限公司 1.9/3.3 kV and below cable for coal mine frequency conversion apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109036618A (en) * 2018-08-08 2018-12-18 远东电缆有限公司 Coal mining machine converter plant soft rubber cable
CN109166677A (en) * 2018-08-08 2019-01-08 远东电缆有限公司 Frequency converting cable used in coal mine production technology

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SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140129

C02 Deemed withdrawal of patent application after publication (patent law 2001)