CN204496967U - Block water middle pressure flexible cable - Google Patents
Block water middle pressure flexible cable Download PDFInfo
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- CN204496967U CN204496967U CN201520164599.2U CN201520164599U CN204496967U CN 204496967 U CN204496967 U CN 204496967U CN 201520164599 U CN201520164599 U CN 201520164599U CN 204496967 U CN204496967 U CN 204496967U
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Abstract
The utility model discloses one to block water middle pressure flexible cable, its main points are: comprise 3 master cores, 3 wire core, semiconducting rubber bar, semi-conductive tape and oversheaths.3 master cores are that equilateral triangle distribution is arranged, and mutual close contact.Semiconducting rubber bar is arranged in the middle of 3 master cores, and close contact equal to each master core.3 master cores all along its separately radial direction be provided with conductor, conductor shield, insulating barrier, insulation screen, the first semi-conductive tape and metal screen layer from inside to outside successively.3 wire core, along the angle setting at equal intervals of cable circumference, contact with corresponding adjacent master core.3 wire core all along its separately radial direction be provided with gnd conductor, semi-conductive layer and the second semi-conductive tape from inside to outside successively.Semi-conductive tape is wrapped outside master core and wire core, and semi-conductive tape adopts semiconductor waterstop.Oversheath is made by haloflex elastomeric compound.Oversheath is coated on the outside of semi-conductive tape.
Description
Technical field
The utility model belongs to power cable technical field, is specifically related to the middle pressure flexible cable that blocks water in a kind of electric power system being applicable to being applied in the higher or long-term area of heavy rainfull of level of ground water.
Background technology
Power cable is distributed in each corner, and environment for use varies.If in the place of humidity, cable is easily intake, and then produce water tree, cause insulation water-treeing, seriously can reduce the electric property of cable like this, finally cause cable breakdown.Along with the intensification to the research that insulation absorbs water and water is set and understanding, people more and more recognize the importance of water resistance centering high voltage wire cable.In level of ground water higher or long-term area of heavy rainfull (such as China the Changjiang river areas to the south), increasing user and various use occasion propose the requirement of higher waterproof to cable.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, block-water performance is excellent, water tree resistant property is excellent and the one of long service life blocks water middle pressure flexible cable.
The basic technical scheme realizing the utility model object is: one blocks water middle pressure flexible cable, and its design feature is: comprise master core, wire core, semiconducting rubber bar, semi-conductive tape and oversheath.Master core has 3, and the structure of 3 master cores is identical.3 master cores are that equilateral triangle distribution is arranged, and mutual close contact.Semiconducting rubber bar is arranged in the middle of 3 master cores, and close contact equal to each master core.3 master cores all along its separately radial direction be provided with conductor, conductor shield, insulating barrier, insulation screen, the first semi-conductive tape and metal screen layer from inside to outside successively.Wire core has 3, and 3 wire core, along the angle setting at equal intervals of cable circumference, contact with corresponding adjacent master core.3 wire core all along its separately radial direction be provided with gnd conductor, semi-conductive layer and the second semi-conductive tape from inside to outside successively.Semi-conductive tape is wrapped outside master core and wire core, and semi-conductive tape adopts semiconductor waterstop.Oversheath is made by haloflex elastomeric compound.Oversheath is coated on the outside of semi-conductive tape.
Technical scheme based on above-mentioned basic technical scheme is: the conductor of master core was formed by some filament diameter soft round tinned copper wire stranded pressing that are identical, nominal cross 16 to 240 square millimeters.Conductor shield is made by conductive black.Conductor shield is extruded in the outside of conductor.Insulating barrier is made up of middle pressure ethylene-propylene rubber material.Insulating barrier is extruded in the outside of conductor shield.Insulation screen is made by conductive black, the outside of insulation screen extruded insulation layer.Conductor shield, insulating barrier and insulation screen adopt the three-layer co-extruded outside being coated on conductor.First semi-conductive tape is wrapped to be arranged on outside insulation screen.First semi-conductive tape adopts semiconductor waterstop.Insulation screen adopts tinned copper wire and filament shuffling to form, and insulation screen is woven in outside the first semi-conductive tape.
Technical scheme based on above-mentioned appropriate technical solution is: the gnd conductor of wire core was formed by some filament diameter soft round tinned copper wire stranded pressing that are identical, nominal cross 16 to 120 square millimeters.Semi-conductive layer is extruded in outside gnd conductor.Second semi-conductive tape is wrapped outside semi-conductive layer 22.Second semi-conductive tape adopts semiconductor waterstop.
Technical scheme based on above-mentioned appropriate technical solution is: also comprise waterproofing rope.Waterproofing rope has some, and each waterproofing rope is separately positioned on adjacent corresponding master core between wire core and between wire core and corresponding adjacent master core.
The utility model has positive effect: the oversheath employing of (1) middle pressure flexible cable that blocks water of the present utility model blocks water, the haloflex elastomeric compound of oil resistant, resistance to-40 DEG C of low temperature, UV resistant and good mechanical performance is made, can not only effectively prevent moisture from penetrating in cable, and the performance such as to have made cable tool also standby anti-aging, tension, tear-proof, wear-resisting, fire-retardant, oil resistant, resistance to day light aging, useful life extends greatly.
(2) insulating barrier of the utility model master core have employed water resistant tree and the middle pressure ethylene-propylene rubber material of excellent insulation performance is made, the tensile strength of insulating barrier is made to be not less than 8.5MPa, elongation at break is not less than 200%, in watertight aircase, carry out that aging (temperature is 135 DEG C ± 3 DEG C, time is 168h), tensile strength retention rate is not less than 80% of former tensile strength, elongation at break is not less than 80% of former elongation at break, thus the highest Long-term service temperature of cable can reach 90 DEG C, temperature resistant capability strengthens greatly, the growth of water tree can be suppressed and slow down simultaneously, extend cable useful life in wet condition.
(3) metal screen layer of the present utility model adopts tinned copper wire and filament shuffling to form, substantially increase the bending property of cable, the embedding gap of cable core adopts waterproofing rope to fill, the outer band of cable core is semiconductor waterstop, can effectively block water moisture infiltration and spread, even if moisture enters into cable, owing to containing expanding powder in waterproofing rope, expanding powder to meet after water can within a certain period of time undergoes rapid expansion to certain altitude, spreading further of moisture can be stoped, improve the reliability of electrical network, reduce the number of times of grid disruption, and reduce the expense safeguarded needed for electrical network bulk life time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cross section of the middle pressure flexible cable that blocks water of the present utility model.
Mark in above-mentioned accompanying drawing is as follows:
Master core 1, conductor 11, conductor shield 12, insulating barrier 13, insulation screen 14, the first semi-conductive tape 15, metal screen layer 16,
Wire core 2, gnd conductor 21, semi-conductive layer 22, the second semi-conductive tape 23,
Semiconducting rubber bar 3, waterproofing rope 4, semi-conductive tape 5, oversheath 6.
Embodiment
(embodiment 1)
See Fig. 1, the sheath of the present embodiment middle pressure flexible cable that blocks water comprises master core 1, wire core 2, semiconducting rubber bar 3, waterproofing rope 4, semi-conductive tape 5 and oversheath 6.
Master core 1 has 3, and the structure of 3 master cores 1 is identical.In equilateral triangle, distribution is arranged 3 master cores 1, and mutual close contact.Semiconducting rubber bar 3 is arranged in the middle of 3 master cores 1, and close contact equal to each master core 1.3 master cores 1 all along its separately radial direction be provided with conductor 11, conductor shield 12, insulating barrier 13, insulation screen 14, first semi-conductive tape 15 and metal screen layer 16 from inside to outside successively.Conductor 11 was formed by some filament diameter soft round tinned copper wire stranded pressing that are identical, nominal cross 16 to 240 square millimeters.Conductor shield 12 is made by conductive black.Conductor shield 12 is extruded in the outside of conductor 11.Insulating barrier 13 is made up of middle pressure ethylene-propylene rubber material.Insulating barrier 13 is extruded in the outside of conductor shield 12.Insulation screen 14 is made by conductive black, the outside of insulation screen 14 extruded insulation layer 13.Conductor shield 12, insulating barrier 13 and insulation screen 14 adopt the three-layer co-extruded outside being coated on conductor 11.First semi-conductive tape 15 is wrapped to be arranged on outside insulation screen 14.First semi-conductive tape 15 adopts semiconductor waterstop.Insulation screen 16 adopts tinned copper wire and filament shuffling to form, and insulation screen 16 is woven in outside the first semi-conductive tape 15.
Wire core 2 has 3, and 3 wire core 2, along the angle setting at equal intervals of cable circumference, contact with corresponding adjacent master core 1.3 wire core 2 all along its separately radial direction be provided with gnd conductor 21, semi-conductive layer 22 and the second semi-conductive tape 23 from inside to outside successively.Gnd conductor 21 was formed by some filament diameter soft round tinned copper wire stranded pressing that are identical, nominal cross 16 to 120 square millimeters.Semi-conductive layer 22 is extruded in outside gnd conductor 21.Second semi-conductive tape 23 is wrapped outside semi-conductive layer 22.Second semi-conductive tape 23 adopts semiconductor waterstop.
Waterproofing rope 4 has some, and the present embodiment is 9, and 9 waterproofing rope 4 are separately positioned on adjacent corresponding master core 1 between wire core 2 and between wire core 2 and adjacent corresponding 2 master cores 1.Semi-conductive tape 5 is wrapped outside master core 1, wire core 2 and waterproofing rope 4, and semi-conductive tape 5 adopts semiconductor waterstop.Oversheath 6 is made by haloflex elastomeric compound.Oversheath 6 is coated on the outside of semi-conductive tape 5.
Above embodiment is only for illustration of the utility model; but not to restriction of the present utility model; person skilled in the relevant technique is not when departing from spirit and scope of the present utility model; various conversion and change can also be made; can also transform accordingly according to the inspiration of above-described embodiment in embody rule process, therefore all equivalent technical schemes all should be included within scope of patent protection of the present utility model.
Claims (4)
1. block water a middle pressure flexible cable, it is characterized in that: comprise master core (1), wire core (2), semiconducting rubber bar (3), semi-conductive tape (5) and oversheath (6); Master core (1) has 3, and the structure of 3 master cores (1) is identical; 3 master cores (1) distribute in equilateral triangle setting, and close contact each other; Semiconducting rubber bar (3) is arranged in the middle of 3 master cores (1), and close contact equal to each master core (1); 3 master cores (1) all along its separately radial direction be provided with conductor (11), conductor shield (12), insulating barrier (13), insulation screen (14), the first semi-conductive tape (15) and metal screen layer (16) from inside to outside successively; Wire core (2) has 3, and 3 wire core (2), along the angle setting at equal intervals of cable circumference, contact with corresponding adjacent master core (1); 3 wire core (2) all along its separately radial direction be provided with gnd conductor (21), semi-conductive layer (22) and the second semi-conductive tape (23) from inside to outside successively; Semi-conductive tape (5) is wrapped in master core (1) and wire core (2) outward, and semi-conductive tape (5) adopts semiconductor waterstop; Oversheath (6) is made by haloflex elastomeric compound; Oversheath (6) is coated on the outside of semi-conductive tape (5).
2. the middle pressure flexible cable that blocks water according to claim 1, is characterized in that: the conductor (11) of master core (1) was formed by some filament diameter soft round tinned copper wire stranded pressing that are identical, nominal cross 16 to 240 square millimeters; Conductor shield (12) is made by conductive black; Conductor shield (12) is extruded in the outside of conductor (11); Insulating barrier (13) is made up of middle pressure ethylene-propylene rubber material; Insulating barrier (13) is extruded in the outside of conductor shield (12); Insulation screen (14) is made by conductive black, the outside of insulation screen (14) extruded insulation layer (13); Conductor shield (12), insulating barrier (13) and insulation screen (14) adopt the three-layer co-extruded outside being coated on conductor (11); First semi-conductive tape (15) is wrapped is arranged on insulation screen (14) outward; First semi-conductive tape (15) adopts semiconductor waterstop; Insulation screen (16) adopts tinned copper wire and filament shuffling to form, and insulation screen (16) is woven in the first semi-conductive tape (15) outward.
3. the middle pressure flexible cable that blocks water according to claim 1, is characterized in that: the gnd conductor (21) of wire core (2) was formed by some filament diameter soft round tinned copper wire stranded pressing that are identical, nominal cross 16 to 120 square millimeters; Semi-conductive layer (22) is extruded in gnd conductor (21) outward; Second semi-conductive tape (23) is wrapped outside semi-conductive layer 22; Second semi-conductive tape (23) adopts semiconductor waterstop.
4. the middle pressure flexible cable that blocks water according to Claims 2 or 3, is characterized in that: also comprise waterproofing rope (4); Waterproofing rope (4) has some, and each waterproofing rope (4) is separately positioned on adjacent corresponding master core (1) between wire core (2) and between wire core (2) and adjacent corresponding (2) root master core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164599.2U CN204496967U (en) | 2015-03-23 | 2015-03-23 | Block water middle pressure flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164599.2U CN204496967U (en) | 2015-03-23 | 2015-03-23 | Block water middle pressure flexible cable |
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| Publication Number | Publication Date |
|---|---|
| CN204496967U true CN204496967U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520164599.2U Active CN204496967U (en) | 2015-03-23 | 2015-03-23 | Block water middle pressure flexible cable |
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| CN (1) | CN204496967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305797A (en) * | 2016-04-20 | 2017-10-31 | 无锡市苏南电缆有限公司 | A kind of new high waterproof high-pressure cable |
| WO2019019500A1 (en) * | 2017-07-28 | 2019-01-31 | 常州船用电缆有限责任公司 | Cable for wind driven generator |
-
2015
- 2015-03-23 CN CN201520164599.2U patent/CN204496967U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305797A (en) * | 2016-04-20 | 2017-10-31 | 无锡市苏南电缆有限公司 | A kind of new high waterproof high-pressure cable |
| WO2019019500A1 (en) * | 2017-07-28 | 2019-01-31 | 常州船用电缆有限责任公司 | Cable for wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Water-blocking medium-voltage flexible cable Effective date of registration: 20191206 Granted publication date: 20150722 Pledgee: Jiangsu Zhongli group Limited by Share Ltd Pledgor: Changzhou Marine Cable Co., Ltd. Registration number: Y2019980000909 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210604 Granted publication date: 20150722 Pledgee: JIANGSU ZHONGLI GROUP Co.,Ltd. Pledgor: CHANGZHOU MARINE CABLE Co.,Ltd. Registration number: Y2019980000909 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |