CN203386491U - High-strength intrinsically-safe instrument cable - Google Patents
High-strength intrinsically-safe instrument cable Download PDFInfo
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- CN203386491U CN203386491U CN201320371220.6U CN201320371220U CN203386491U CN 203386491 U CN203386491 U CN 203386491U CN 201320371220 U CN201320371220 U CN 201320371220U CN 203386491 U CN203386491 U CN 203386491U
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- aluminum foil
- cable
- foil polyester
- polyester composite
- intrinsically
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Abstract
The utility model discloses a high-strength intrinsically-safe instrument cable comprising cabling wire cores. The high-strength intrinsically-safe instrument cable is characterized in that the cabling wire cores are wrapped by a polyester film layer, the polyester film layer is wrapped by an aluminum foil polyester composite belt, a grounded leading line formed by twisting tin-plated copper wires is clamped in the aluminum foil polyester composite belt, the leading line is in contact with an aluminum layer of the aluminum foil polyester composite belt, a lining layer is arranged outside the aluminum foil polyester composite belt, a tin-plated copper wire braided layer is arranged outside the lining layer, a composite sheath is arranged outside the braided shielding layer, and two high-strength steel wires which are arranged along the longitudinal direction of the cable in parallel are arranged in the center of wall thickness of the composite sheath. Compared with the prior art, as a double compound shielding structure composed of the aluminum foil polyester composite belt and the tin-plated copper wire braided layer is adopted and the two high-strength steel wires placed in parallel are arranged in the center of wall thickness of the composite sheath, the shielding performance and the strength of the cable can be greatly improved, and the high-strength intrinsically-safe instrument cable is safer and more reliable in use.
Description
Technical field
The utility model belongs to the cable technology field, is specifically related to a kind of high strength intrinsically-safe instrument cable.
Background technology
Be accompanied by the transfer of global energy exploitation to ocean, the marine oil and gas engineering is in the ascendant.Owing to being full of inflammable and explosive greasy dirt and gas in the marine oil and gas engineering, for guaranteeing the fail safe of electric signal transmission in equipment, need special intrinsically-safe instrument cable supporting with it.Because ocean engineering is low electric capacity and low inductance by the topmost performance of essential safety instrument cable, and electric capacity and inductance are multifactor relevant with conductor material, insulating material, insulation thickness, twisting pitch etc.The interference of phase mutual interference and outer bound pair cable between each pair twist group of the necessary consideration of design cable.Simultaneously ocean engineering is full of the high-risk property requirement cable low-smoke non-halogen flame-retardant of oil gas, and especially the intrinsically-safe instrument cable must meet even the regulation fire-retardant higher than the category-A bunchy especially.Simultaneously, the intensity of most of intrinsically-safe instrument cable is poor, easily breaks down.
The utility model content
The purpose of this utility model is to provide a kind of high strength intrinsically-safe instrument cable of new construction, and it has low electric capacity and low inductance and high shielding properties and high strength, to be applicable to field of ocean engineering to the cable demand.
For realizing this purpose, the technical solution of the utility model is: a kind of high strength intrinsically-safe instrument cable, comprise into cable core, the wrapped laminated polyester film of described one-tenth cable core, the outer wrapped aluminum foil polyester composite strip of described polyester film, accompany a stranded grounding lead streamline formed of tinned copper wire in described aluminum foil polyester composite strip, drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip, described aluminum foil polyester composite strip is provided with inner covering outward, described inner covering is provided with tincopper fuse wire braided armor outward, described woven shield is provided with composite jacket outward, described composite jacket wall thickness middle position is provided with two high-tensile steel wires that are parallel to each other and arrange along the cable longitudinal direction.
As preferably, it is uniform that the interior four groups of conductors of described one-tenth cable core are star, every group of conductor twisted and forms again by the multiply tinned copper wire, extrude low-density on it crosslinked polyetylene insulated, wrapped laminated polyester film, the outer wrapped aluminum foil polyester composite strip of described laminated polyester film, accompany a stranded grounding lead streamline formed of tinned copper wire in described aluminum foil polyester composite strip, drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip.
As preferably, the conductor of described power core contains the fibre bundle strengthening core.
As preferably, described composite jacket is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.
As preferably, described composite jacket inboard also is provided with the webbed skeleton resistance to compression of circle braided steel wire layer.
With respect to prior art, the utility model weaves dual composite shielding structure by aluminum foil polyester composite strip and tinned wird, can greatly improve the shielding properties of cable, reaches the effect of getting twice the result with half the effort.Oversheath is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint, thereafter low temperature resistant reaching-40 ℃, and possess the performances such as wear-resisting, anti-tear, oil resistant, anti-ozone, oil resistant mud, high flame retardant, can meet the requirements of the many corrosion of offshore engineering equipment environment.In addition, at the central high-tensile steel wires that arrange by two parallel placements of the wall thickness of composite jacket, form tension member, contribute to promote cable intensity, can play a protective role to cable when cable bears larger pulling force.Simultaneously, be provided with the webbed skeleton resistance to compression of circle braided steel wire layer in the sheath inboard, further promoted the tensile and compressive property of cable.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1. tinned copper wire, 2. insulating barrier, 3. accompany the aluminum foil polyester composite strip of drainage thread, 4. polyester belt, 5. polyester belt, 6. accompany the aluminum foil polyester composite strip of drainage thread, 7. inner covering, 8. tincopper fuse wire braided armor, 9. composite jacket.
embodiment
The utility model is further illustrated with reference to the accompanying drawings in conjunction with the embodiments.
As shown in Figure 1, a kind of high strength intrinsically-safe instrument cable, comprise into cable core, the wrapped laminated polyester film of described one-tenth cable core, the outer wrapped aluminum foil polyester composite strip of described polyester film, accompany a stranded grounding lead streamline formed of tinned copper wire in described aluminum foil polyester composite strip, drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip, described aluminum foil polyester composite strip is provided with inner covering outward, described inner covering is provided with tincopper fuse wire braided armor outward, described woven shield is provided with composite jacket outward, described composite jacket wall thickness middle position is provided with two high-tensile steel wires that are parallel to each other and arrange along the cable longitudinal direction.Wherein, it is uniform that the interior four groups of conductors of described one-tenth cable core are star, every group of conductor twisted and forms again by the multiply tinned copper wire, extrude low-density on it crosslinked polyetylene insulated, wrapped laminated polyester film, the outer wrapped aluminum foil polyester composite strip of described laminated polyester film, accompany a stranded grounding lead streamline formed of tinned copper wire in described aluminum foil polyester composite strip, drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip; The conductor of described power core contains the fibre bundle strengthening core; Oversheath is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.Described composite jacket inboard also is provided with the webbed skeleton resistance to compression of circle braided steel wire layer.
Each process operations main points: conductor: control the monofilament nominal diameter, anneal is thorough, and the stranded lay ratio of conductor is no more than 16 times.Extrude the aluminum foil polyester composite strip that thickness is respectively 0.015 mm and 0.025 mm, the wrapped rate 25%～45% of putting up, zinc-plated stranded copper wire drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip, the wrapped polyester belt again in composite band outside, and the wrapped rate of putting up is 25%～30%.The stranding cable core first adopts polyester belt wrapped outward, and then is respectively the aluminum foil polyester composite strip of 0.015 mm and 0.025 mm around thickness, and the rate of putting up is 25%～45%, and zinc-plated stranded copper wire drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip.Inner covering is for extruding the high flame retardant halogen-free polyolefin, and surperficial shall be rounded up is smooth.The braiding armouring, adopt the tinned wird braiding, and count is not less than 90% according to the formula calculating of IEC 60092-350.
The improvement that the utility model carries out mainly for the high strength intrinsically-safe instrument construction of cable, the foregoing is only the utility model preferred embodiment, non-so limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as doing by the utility model specification and graphic content, all should be contained in the scope of the claims of the present utility model.
Claims (5)
1. a high strength intrinsically-safe instrument cable, comprise into cable core, it is characterized in that, the wrapped laminated polyester film of described one-tenth cable core, the outer wrapped aluminum foil polyester composite strip of described polyester film, accompany a stranded grounding lead streamline formed of tinned copper wire in described aluminum foil polyester composite strip, drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip, described aluminum foil polyester composite strip is provided with inner covering outward, described inner covering is provided with tincopper fuse wire braided armor outward, described woven shield is provided with composite jacket outward, described composite jacket wall thickness middle position is provided with two high-tensile steel wires that are parallel to each other and arrange along the cable longitudinal direction.
2. high strength intrinsically-safe instrument cable according to claim 1, it is characterized in that, it is uniform that the interior four groups of conductors of described one-tenth cable core are star, every group of conductor twisted and forms again by the multiply tinned copper wire, extrude low-density on it crosslinked polyetylene insulated, wrapped laminated polyester film, the outer wrapped aluminum foil polyester composite strip of described laminated polyester film, accompany a stranded grounding lead streamline formed of tinned copper wire in described aluminum foil polyester composite strip, drainage thread contacts with the aluminium lamination of aluminum foil polyester composite strip.
3. high strength intrinsically-safe instrument cable according to claim 1, is characterized in that, the conductor of described power core contains the fibre bundle strengthening core.
4. high strength intrinsically-safe instrument cable according to claim 1, is characterized in that, described composite jacket is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.
5. high strength intrinsically-safe instrument cable according to claim 1, is characterized in that, described composite jacket inboard also is provided with the webbed skeleton resistance to compression of circle braided steel wire layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320371220.6U CN203386491U (en) | 2013-06-26 | 2013-06-26 | High-strength intrinsically-safe instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320371220.6U CN203386491U (en) | 2013-06-26 | 2013-06-26 | High-strength intrinsically-safe instrument cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203386491U true CN203386491U (en) | 2014-01-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320371220.6U Expired - Fee Related CN203386491U (en) | 2013-06-26 | 2013-06-26 | High-strength intrinsically-safe instrument cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN203386491U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915140A (en) * | 2014-03-14 | 2014-07-09 | 安徽省高沟电缆有限公司 | Cable with copper conductor cable cores and heating wires |
| CN103915177A (en) * | 2014-03-19 | 2014-07-09 | 安徽华源电缆集团有限公司 | Tensile armor cable with reinforcement cores |
| CN103915181A (en) * | 2014-03-19 | 2014-07-09 | 安徽华源电缆集团有限公司 | Tensile drainage cable with reinforcement cores |
| CN103928134A (en) * | 2014-04-26 | 2014-07-16 | 芜湖航天特种电缆厂 | Intrinsic safety type composite cable with Y-shaped rubber framework |
-
2013
- 2013-06-26 CN CN201320371220.6U patent/CN203386491U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915140A (en) * | 2014-03-14 | 2014-07-09 | 安徽省高沟电缆有限公司 | Cable with copper conductor cable cores and heating wires |
| CN103915177A (en) * | 2014-03-19 | 2014-07-09 | 安徽华源电缆集团有限公司 | Tensile armor cable with reinforcement cores |
| CN103915181A (en) * | 2014-03-19 | 2014-07-09 | 安徽华源电缆集团有限公司 | Tensile drainage cable with reinforcement cores |
| CN103928134A (en) * | 2014-04-26 | 2014-07-16 | 芜湖航天特种电缆厂 | Intrinsic safety type composite cable with Y-shaped rubber framework |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160626 |