CN205264374U - Sea worker's equipment is with this ampere of instrument of special type cable - Google Patents
Sea worker's equipment is with this ampere of instrument of special type cable Download PDFInfo
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- CN205264374U CN205264374U CN201520942057.3U CN201520942057U CN205264374U CN 205264374 U CN205264374 U CN 205264374U CN 201520942057 U CN201520942057 U CN 201520942057U CN 205264374 U CN205264374 U CN 205264374U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a sea worker's equipment is with this ampere of instrument of special type cable, including a cable core, the cable core includes three sinle silk units, the sinle silk unit includes the conductor sinle silk, the conductor sinle silk includes 2 insulated conductor and the fire -retardant filling layer that blocks water, insulated conductor includes the conductor, the outside extruded insulation layer of conductor, set up the fire -retardant filling layer that blocks water between two insulated conductor, the outside of conductor sinle silk sets gradually coloured lacing, the interior fire -retardant area that blocks water is around the covering, compound divide the shielding layer in with the fire -retardant area that blocks water around the covering, be provided with the fire -retardant filling layer that blocks water of second between three sinle silk units, the outside of cable core has set gradually the fire -retardant area that blocks water around the covering, total composite shielding layer and oversheath layer. The utility model discloses structure science, novel equitable, technology is advanced, characteristics such as the product has excellent low electric capacity, low inductance, essential safety, signal transmission can the reinforce, anti -interference ability is good, performance is good, the product adopts double -deck compound shielding structure, makes it have the high noise immunity ability, is applicable to the occasion of disturbing the level complicated.
Description
Technical field
The utility model belongs to cables manufacturing field, relates to extraordinary intrinsically-safe instrument cable for a kind of extra large construction equipment.
Background technology
Be accompanied by the transfer of global energy exploitation to ocean, marine oil and gas engineering is in the ascendant. Owing to being full of inflammable and explosive greasy dirt and gas in marine oil and gas engineering, therefore, extra large construction equipment is proposed to the requirement of " explosion-proof " with cable. Because electric spark and fuel factor are to cause the main contributor of explosion hazard gases blast, and consider from system wiring angle, because cable is made up of distributed components such as many distribution capacity, inductance, make it correspondingly become energy-storage travelling wave tube, therefore in signals transmission, inevitably store certain energy. Once system breaks down, these energy storage will discharge with the form of electric spark or fuel factor, affect the security of system. Therefore, require cable to there is low electric capacity and low inductance, cable itself with electric charge to lack, be difficult for produce electric spark; Secondly, require cable to there is good shielding properties, there is good anti-external electromagnetic field and disturb and do not produce external interference. This just requires cable to have " essential safety " characteristic. Therefore, intrinsic safety system instrument cable should have low electric capacity and low inductance, and has good shielding properties and interference free performance, and explosion-proof performance is better than general plain edition control cables and instrument cable.
Therefore, need a kind of extra large construction equipment with extraordinary intrinsically-safe instrument cable to address the above problem.
Utility model content
Utility model object: the utility model is used the defect of cable for extra large construction equipment in prior art, extraordinary intrinsically-safe instrument cable for a kind of extra large construction equipment is provided.
Technical scheme: for solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of extraordinary intrinsically-safe instrument cable for extra large construction equipment, comprise cable core, described cable core comprises three core unit, described core unit comprises conductor thread core, described conductor thread core comprises 2 insulated electric conductors and the fire-retardant packed layer that blocks water, described insulated electric conductor comprises conductor, the outside extruded insulation layer of described conductor, the fire-retardant packed layer that blocks water is set between two described insulated electric conductors, the outside of described conductor thread core sets gradually color band layer, interior fire-retardant waterstop lapping layer, compound sub-shield and in fire-retardant waterstop lapping layer, between three described core unit, be provided with the second fire-retardant packed layer that blocks water, the outside of described cable core is disposed with fire-retardant waterstop lapping layer, total composite shielding layer and external sheath layer.
Further, described insulating barrier is crosslinked polyetylene insulated layer.
Further, described compound sub-shield adopts compound copper-plastics band and proof copper-wire braided to form.
Further, described total composite shielding layer adopts proof copper-wire braided and aramid fiber braiding to form.
Further, described oversheath is Halogen cross-linked polyolefin.
Further, two described insulated electric conductors are twisted into described conductor thread core.
Further, the inner side of described external sheath layer is provided with projection. Inner side at external sheath layer arranges projection, projection can significantly increase the fire-retardant contact area blocking water between packed layer and oversheath, thereby the ability that oversheath, fibrage enhancement Layer and the fire-retardant packed layer that blocks water are combined together strengthens greatly, greatly strengthen resistance to tension, and by regulating protruding size and spacing can effectively adjust the resistance to tension of cable all directions.
Further, on the axis direction of cable, the distance between adjacent described projection is 1-2cm; On the circumferencial direction of cable, the distance between adjacent described projection is 0.5-0.8cm.
Further, the arranged outside of the described fire-retardant packed layer that blocks water has screw thread, and the pitch of described screw thread is 4-5mm. Screw thread outside packed layer can effectively increase the contact area of shielding enhancement Layer and external sheath layer and packed layer, can greatly improve resistance to torsion and the stretching resistance performance of cable, and pitch is suitable, has significantly and improves for the performance of cable.
Further, contrary every the rotation direction of screw thread described in 4-5cm along the axis direction of cable. Resistance to torsion and stretching resistance for cable promote higher.
Beneficial effect: extra large construction equipment of the present utility model is new reasonable by extraordinary intrinsically-safe instrument construction of cable science, technique advanced person, product has the features such as excellent low electric capacity, low inductance, essential safety, signal transmission capabilities are strong, good in anti-interference performance, and serviceability is good; Product adopts two-layer compound shielding construction, makes it have high anti-interfering performance, is applicable to disturb the occasion of level complexity.
Brief description of the drawings
Fig. 1 is the structural representation of the extraordinary intrinsically-safe instrument cable of extra large construction equipment of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described. Below be only preferred embodiments of the present utility model; protection domain of the present utility model is not limited with above-mentioned embodiment; in every case the equivalence that those of ordinary skill in the art do according to the utility model institute disclosure is modified or is changed, and all should include in the protection domain of recording in claims.
Refer to shown in Fig. 1, extraordinary intrinsically-safe instrument cable for extra large construction equipment of the present utility model, comprise cable core, cable core comprises three core unit 1, core unit 1 comprises conductor thread core, conductor thread core comprises 2 insulated electric conductors 2 and the fire-retardant packed layer 3 that blocks water, insulated electric conductor 2 comprises conductor, the outside extruded insulation layer of conductor, the fire-retardant packed layer 3 that blocks water is set between two insulated electric conductors 2, the outside of conductor thread core sets gradually color band layer 4, interior fire-retardant waterstop lapping layer 5, compound sub-shield 6 and in fire-retardant waterstop lapping layer 7, between three core unit 1, be provided with the second fire-retardant packed layer 8 that blocks water, the outside of cable core is disposed with fire-retardant waterstop lapping layer 9, total composite shielding layer 10 and external sheath layer 11.
The utility model conductor is according to different service condition requirements, and conductor can be selected the 1.2nd or the 5th kind of structure that meet standard GB/T3956 regulation.
Preferably, insulating barrier is crosslinked polyetylene insulated layer. Compound sub-shield 6 adopts compound copper-plastics band and proof copper-wire braided to form. Total composite shielding layer 10 adopts proof copper-wire braided and aramid fiber braiding to form. Oversheath is Halogen cross-linked polyolefin. Two insulated electric conductors 2 are twisted into conductor thread core. Adopt double-deck fire-retardant material water-proof material to fill and three layers of fire-retardant material water-proof material is wrapped and cross-linked polyolefin sheath, make product there is excellent fire-retardant blocking water and oil resistant mud performance.
Preferably, the inner side of external sheath layer 11 is provided with projection. Inner side at external sheath layer 11 arranges projection, projection can significantly increase the fire-retardant contact area blocking water between packed layer and oversheath, thereby the ability that oversheath, fibrage enhancement Layer and the fire-retardant packed layer that blocks water are combined together strengthens greatly, greatly strengthen resistance to tension, and by regulating protruding size and spacing can effectively adjust the resistance to tension of cable all directions. On the axis direction of cable, the distance between adjacent protrusion is 1-2cm; On the circumferencial direction of cable, the distance between adjacent protrusion is 0.5-0.8cm. Adopt this spacing, size to fit, strengthens effect for the resistance to tension of cable best.
The fire-retardant arranged outside that blocks water packed layer 3 has screw thread, and the pitch of screw thread is 4-5mm. Screw thread outside packed layer can effectively increase the contact area of shielding enhancement Layer and external sheath layer and packed layer, can greatly improve resistance to torsion and the stretching resistance performance of cable, and pitch is suitable, has significantly and improves for the performance of cable. Axis direction along cable is contrary every the rotation direction of 4-5cm screw thread. Resistance to torsion and stretching resistance for cable promote higher.
Extra large construction equipment of the present utility model is new reasonable by extraordinary intrinsically-safe instrument construction of cable science, technique advanced person, and product has the features such as excellent low electric capacity, low inductance, essential safety, signal transmission capabilities are strong, good in anti-interference performance, and serviceability is good; Product adopts two-layer compound shielding construction, makes it have high anti-interfering performance, is applicable to disturb the occasion of level complexity.
Claims (10)
1. an extraordinary intrinsically-safe instrument cable for extra large construction equipment, it is characterized in that: comprise cable core, described cable core comprises three core unit (1), described core unit (1) comprises conductor thread core, described conductor thread core comprises 2 insulated electric conductors (2) and the fire-retardant packed layer that blocks water (3), described insulated electric conductor (2) comprises conductor, the outside extruded insulation layer of described conductor, the fire-retardant packed layer that blocks water (3) is set between two described insulated electric conductors (2), the outside of described conductor thread core sets gradually color band layer (4), interior fire-retardant waterstop lapping layer (5), compound sub-shield (6) and in fire-retardant waterstop lapping layer (7), between three described core unit (1), be provided with the second fire-retardant packed layer that blocks water (8), the outside of described cable core is disposed with fire-retardant waterstop lapping layer (9), total composite shielding layer (10) and external sheath layer (11).
2. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 1, is characterized in that: described insulating barrier is crosslinked polyetylene insulated layer.
3. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 1, is characterized in that: described compound sub-shield (6) adopts compound copper-plastics band and proof copper-wire braided to form.
4. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 1, is characterized in that: described total composite shielding layer (10) adopts proof copper-wire braided and aramid fiber braiding to form.
5. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 1, is characterized in that: described oversheath is Halogen cross-linked polyolefin.
6. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 1, is characterized in that: two described insulated electric conductors (2) are twisted into described conductor thread core.
7. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 1, is characterized in that: the inner side of described external sheath layer (11) is provided with projection.
8. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 7, is characterized in that: on the axis direction of cable, the distance between adjacent described projection is 1-2cm; On the circumferencial direction of cable, the distance between adjacent described projection is 0.5-0.8cm.
9. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 1, is characterized in that: the arranged outside of the described fire-retardant packed layer that blocks water (3) has screw thread, the pitch of described screw thread is 4-5mm.
10. extraordinary intrinsically-safe instrument cable for extra large construction equipment as claimed in claim 9, is characterized in that: the axis direction along cable is contrary every the rotation direction of screw thread described in 4-5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942057.3U CN205264374U (en) | 2015-11-24 | 2015-11-24 | Sea worker's equipment is with this ampere of instrument of special type cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942057.3U CN205264374U (en) | 2015-11-24 | 2015-11-24 | Sea worker's equipment is with this ampere of instrument of special type cable |
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| Publication Number | Publication Date |
|---|---|
| CN205264374U true CN205264374U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520942057.3U Active CN205264374U (en) | 2015-11-24 | 2015-11-24 | Sea worker's equipment is with this ampere of instrument of special type cable |
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| CN (1) | CN205264374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033885A (en) * | 2019-04-25 | 2019-07-19 | 江苏新潮光伏能源发展有限公司 | A kind of power equipment control cable |
-
2015
- 2015-11-24 CN CN201520942057.3U patent/CN205264374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033885A (en) * | 2019-04-25 | 2019-07-19 | 江苏新潮光伏能源发展有限公司 | A kind of power equipment control cable |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |