CN203325484U - Intrinsically safe flexible cable for DCS system - Google Patents
Intrinsically safe flexible cable for DCS system Download PDFInfo
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- CN203325484U CN203325484U CN2013203608908U CN201320360890U CN203325484U CN 203325484 U CN203325484 U CN 203325484U CN 2013203608908 U CN2013203608908 U CN 2013203608908U CN 201320360890 U CN201320360890 U CN 201320360890U CN 203325484 U CN203325484 U CN 203325484U
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- flexible cable
- cable core
- cable
- dcs system
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Abstract
The utility model discloses an intrinsically safe flexible cable for a DCS system, relates to the technical field of cable manufacture, and especially relates to the intrinsically safe flexible cable for the DCS system. The intrinsically safe flexible cable for the DCS system comprises a cable core; a lapping cabling layer, a total shielding layer, an inner linear layer, an armor layer and an outer sheath layer are successively arranged at the outer side of the cable core; a filling layer is arranged between the cable core and the wrapped cabling layer; a first drainage wire is arranged between the wrapped cabling layer and the total shielding layer; the cable core comprises multiple strands of mutually twisted cores; each strand of core comprises a set of pair-twisted insulated conductors; a color band layer, a tape wrapping layer and a phase-splitting shielding layer are successively arranged at the outer side of each set of pair-twisted insulated conductors; a second drainage wire is arranged between each tape wrapping layer and the corresponding phase-splitting shielding layer; each insulated conductor comprises a tin-coated copper wire bunch-stranded conductor; and an insulating layer is wrapped outside each tin-coated copper wire bunch-stranded conductor. The intrinsically safe flexible cable for the DCS system has the following advantages: the structure is sound and novel, the material is selected carefully and scientifically, the capacitance is low, the inductance is low, electric flames are not easily generated, and the provided flexible cable has the intrinsically safe property; and besides, the provided flexible cable also has the excellent properties of flame retardation, anti-interference, oil resistance, ozone resistance and the like.
Description
Technical field
The utility model relates to the cables manufacturing technical field, particularly a kind of intrinsic safety DCS system flexible cable.
Background technology
DCS system (or claiming distributed control system) is to take microprocessor as basis, take microcomputer decentralized control, operation and management concentrates as characteristic, and integrating advanced computer technology, mechanics of communication, CRT technology and control technology is the new control system of 4C technology.Intrinsic safety DCS system mainly is applicable to oil, chemical industry, electric power, gas engineering, mine etc. with flexible cable and has the occasion of explosion hazard and the occasion that other anti-explosion safety is had relatively high expectations, the transmission automatic control signal.This cable has low electric capacity, low inductance and excellent shielding properties and interference free performance, also there is no the product standard of DCS system with cable due at present domestic with industry, high end cable dependence on import for the DCS system, in order to break international monopoly, therefore, research and development intrinsic safety DCS system flexible cable, imperative.
The utility model content
The utility model purpose is for the cable shield effect poor, problem due to electric spark and thermal effect initiation explosion hazard gases blast and cable selfcapacity and distributed inductance, provide a kind of intrinsic safety DCS system flexible cable with characteristics such as dielectric loss are low, signal transmission capabilities is strong.
The utility model comprises cable core, in the described cable core outside, sets gradually wrapped stranding layer, total screen, inner covering, armour and external sheath layer; Between described cable core and wrapped stranding layer, packed layer is set; Between described wrapped stranding layer and total screen, the first drainage thread is set; Described cable core comprises some strands of stranded cores mutually, and per share described core comprises respectively the insulated electric conductor of one group of pair twist, in the insulated electric conductor outside of pair twist, sets gradually colour band layer, belting layer and phase-splitting screen; Between described belting layer and phase-splitting screen, the second drainage thread is set; Every eradication edge conductor comprises respectively tin-coated copper tow strand conductor, at described tin-coated copper tow strand conductor outer wrapping insulating barrier.
The utility model conductor adopts the stranded bunchy of several tinned copper wires to form, and cross-sectional area of conductor amasss as 0.75-2.5mm
2.Insulating material is crosslinked polyethylene.Separated-shielding adopts the overlapping wrapped mode of aluminium-plastic tape, and total shielding is wrapped aluminum foil polyester composite strip outside cable core.Place a drainage thread stranded by the multiply tinned copper wire in screen, the drainage thread cross section is not less than 0.2mm
2, drainage thread need contact with the aluminium lamination of aluminium-plastic tape (or aluminum foil polyester composite strip).Belting layer adopts fire-retardant band wrapped, and the cable core gap adopts halogen-free flameproof glass cordage material to fill.Inner sheath, oversheath adopt the modification low smoke halogen-free flame-retardant polyolefin to extrude formation.Armour adopts the tinned copper wire braiding to form, and count is not less than 90%.The utility model novelty rational in infrastructure, the materials science is particular about, and product has low electric capacity, low inductance, is difficult for producing electric spark, essential safety characteristic; There is the premium properties such as fire-retardant, anti-interference, oil resistant, anti-ozone simultaneously.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises cable core, sets gradually wrapped stranding layer 1, total screen 2, inner covering 3, armour 4 and external sheath layer 5 in the cable core outside; Between cable core and wrapped stranding layer 1, packed layer 6 is set; Between wrapped stranding layer 1 and total screen 2, the first drainage thread 7 is set; Cable core comprises some strands of stranded cores 8 mutually, and per share core 8 comprises respectively the insulated electric conductor 9 of one group of pair twist, in insulated electric conductor 9 outsides of pair twist, sets gradually colour band layer 10, belting layer 11 and phase-splitting screen 12; The second drainage thread 15 is set between belting layer 11 and phase-splitting screen 12; Every eradication edge conductor 9 comprises respectively tin-coated copper tow strand conductor 13, at tin-coated copper tow strand conductor 13 outer wrapping insulating barriers 14.
Claims (1)
1. intrinsic safety DCS system flexible cable, is characterized in that: comprise cable core, in the described cable core outside, set gradually wrapped stranding layer, total screen, inner covering, armour and external sheath layer; Between described cable core and wrapped stranding layer, packed layer is set; Between described wrapped stranding layer and total screen, the first drainage thread is set; Described cable core comprises some strands of stranded cores mutually, and per share described core comprises respectively the insulated electric conductor of one group of pair twist, in the insulated electric conductor outside of pair twist, sets gradually colour band layer, belting layer and phase-splitting screen; Between described belting layer and phase-splitting screen, the second drainage thread is set; Every eradication edge conductor comprises respectively tin-coated copper tow strand conductor, at described tin-coated copper tow strand conductor outer wrapping insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203608908U CN203325484U (en) | 2013-06-24 | 2013-06-24 | Intrinsically safe flexible cable for DCS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203608908U CN203325484U (en) | 2013-06-24 | 2013-06-24 | Intrinsically safe flexible cable for DCS system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325484U true CN203325484U (en) | 2013-12-04 |
Family
ID=49664799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203608908U Expired - Fee Related CN203325484U (en) | 2013-06-24 | 2013-06-24 | Intrinsically safe flexible cable for DCS system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943202A (en) * | 2014-02-28 | 2014-07-23 | 安徽幸福电器电缆有限公司 | Antistatic and ultrahigh-voltage silicone rubber cable |
-
2013
- 2013-06-24 CN CN2013203608908U patent/CN203325484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943202A (en) * | 2014-02-28 | 2014-07-23 | 安徽幸福电器电缆有限公司 | Antistatic and ultrahigh-voltage silicone rubber cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20200624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |