CN201425847Y - Low smoke HFFR combined shielding metro light rail signal cable - Google Patents
Low smoke HFFR combined shielding metro light rail signal cable Download PDFInfo
- Publication number
- CN201425847Y CN201425847Y CN2009200447575U CN200920044757U CN201425847Y CN 201425847 Y CN201425847 Y CN 201425847Y CN 2009200447575 U CN2009200447575 U CN 2009200447575U CN 200920044757 U CN200920044757 U CN 200920044757U CN 201425847 Y CN201425847 Y CN 201425847Y
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- cable core
- cable
- layer
- light rail
- wire
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Abstract
The utility model relates to a low smoke HFFR combined shielding metro light rail signal cable, which comprises a cable core and an outer sheath. A plurality of wire groups are arranged in the cable core. A cable core belting layer and a steel tape armored shielding layer are coated between the cable core and the outer sheath. Half or more than half of wire groups in a plurality of wire groups areprovided with a shielding layer. A cable core shielding layer is arranged between the cable core belting layer and the steel tape armored shielding layer. The diameter of the conductor of each wire is from 0.40mm to 1.53mm. The insulating layer of each wire is of the skin-foam-skin structure or foam-skin structure. The structure of the shielding layer of the wire group is that a double-layer or single-layer copper strap is wrapped or the single-layer copper strap is embossed and wrapped longitudinally or copper wires or tinned copper wires are woven. The cable core shielding layer is formed by longitudinally wrapping an aluminum-plastic combined strap or a pure aluminum strap or a pure copper strap. The utility model has good shielding function and can reduce the mutual interference amongthe cable wire groups and the interference of outside electromagnetic field on the cable. Mechanical physical performance and flame retardant property are strengthened. The utility model can meet theuse requirement of the prior metro light rail system on the signal cable.
Description
Technical field
The utility model relates to a kind of signal cable, especially is applied to the signal cable of field of track traffic such as subway light rail.
Background technology
Have the signal cable that is used for field of track traffic such as subway light rail now, its basic structure is: be twisted into the lead group by insulated conductor, the lead group is twisted into cable conductor, wrapped steel-tape armouring screen and oversheath outside cable conductor.The insulation layer structure of insulated conductor is real core insulation layer, and transmission attenuation is bigger; Do not have electromagnetic armouring structure between the lead group in the cable conductor, have certain phase mutual interference; Cable conductor is only established one deck steel-tape armouring screen outward, and the ability of anti-electromagnetic interference is relatively poor.
Summary of the invention
In order to overcome the deficiency that has the signal cable that is used for field of track traffic such as subway light rail now, the utility model provides a kind of low-smoke halogen-free flame-retardant comprehensive shielded subway light rail signal cable.The transmission attenuation of this cable is little; Phase mutual interference between the cable core inside conductor group is few; The ability of the anti-electromagnetic interference of cable is stronger.
A kind of low-smoke halogen-free flame-retardant comprehensive shielded subway light rail signal cable that the utility model provides, comprise cable core and oversheath, have several lead groups in the cable core, coat cable core belting layer, steel-tape armouring screen between cable core and the oversheath successively, there is half and more lead group to be provided with screen outward in several lead groups, between cable core belting layer and steel-tape armouring screen, is provided with the cable core screen.
The diameter of the conductor of every lead of the present utility model is 0.40mm-1.53mm, and the insulating barrier of every lead is skin-bubble-skin structure or bubble-skin structure.
The structure of the screen of lead group of the present utility model is: bilayer or individual layer copper strips are wrapped or individual layer copper strips embossing is vertical wraps or adopts copper wire or tinned copper wire braiding to form.
Cable core screen of the present utility model adopts the vertical bag of aluminium-plastic tape or fine aluminium band or fine copper band to form.
The beneficial effects of the utility model are: have good function of shielding, can reduce the interference to cable of phase mutual interference between the cable conductor group and extraneous electromagnetic field; Mechanical and physical performance and fire resistance strengthen, and can satisfy the instructions for use of existing subway light rail system to signal cable.
Description of drawings
Fig. 1 is a cross sectional representation of the present utility model.
In Fig. 1,1. conductor, 2. insulating barrier, 3. lead, 4. lead group, 5. cable core 6. is provided with the lead group of screen, 7. screen, 8. cable core belting layer, 9. cable core screen, 10. steel-tape armouring screen, 11. oversheaths.
Embodiment
With reference to Fig. 1, the insulating barrier 2 that coats skin-bubble-skin structure or bubble-skin structure outside diameter is conductor 1 between the 0.40mm-1.53mm is made lead 3, with the lead 3 stranded lead groups 4 of making, and half and more lead group is wherein coated screen 7 outward make the lead group 6 that is provided with screen 7.Screen 7 is by bilayer or the individual layer copper strips is wrapped or individual layer copper strips embossing is indulged bag or adopt copper wire or the tinned copper wire braiding forms.Again several lead groups 4 and several lead groups 6 that are provided with screen 7 are twisted into cable core 5, outside cable core 5, coat cable core belting layer 8 backs and adopt aluminium-plastic tape or fine aluminium band or the vertical bag of fine copper band cable core screen 9, adopt the wrapped or vertical Baogang of the individual layer steel band embossing band armouring screen 10 of double-deck steel band then, adopt low-smoke and halogen-free flame retardant polyolefin jacket material to coat oversheath 11 again.
Claims (2)
1, a kind of low-smoke halogen-free flame-retardant comprehensive shielded subway light rail signal cable, comprise cable core and oversheath, have several lead groups in the cable core, coat cable core belting layer, steel-tape armouring screen between cable core and the oversheath successively, it is characterized in that having in several lead groups half and more lead group to be provided with screen outward, between cable core belting layer and steel-tape armouring screen, be provided with the cable core screen.
2, by the described low-smoke halogen-free flame-retardant comprehensive shielded subway light rail signal cable of claim 1, the diameter that it is characterized in that the conductor of every lead is 0.40mm-1.53mm, and the insulating barrier of every lead is skin-bubble-skin structure or bubble-skin structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200447575U CN201425847Y (en) | 2009-06-01 | 2009-06-01 | Low smoke HFFR combined shielding metro light rail signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200447575U CN201425847Y (en) | 2009-06-01 | 2009-06-01 | Low smoke HFFR combined shielding metro light rail signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425847Y true CN201425847Y (en) | 2010-03-17 |
Family
ID=42025302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200447575U Expired - Fee Related CN201425847Y (en) | 2009-06-01 | 2009-06-01 | Low smoke HFFR combined shielding metro light rail signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425847Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440920A (en) * | 2013-07-26 | 2013-12-11 | 安徽省巢湖海兴电缆集团有限公司 | Halogen-free flame retardant thin-wall type control cable for special motor train |
| CN103515016A (en) * | 2012-06-29 | 2014-01-15 | 江苏亨通线缆科技有限公司 | High-speed flexible cable for signal communication |
| CN104733128A (en) * | 2015-03-18 | 2015-06-24 | 芜湖航天特种电缆厂 | Cable |
-
2009
- 2009-06-01 CN CN2009200447575U patent/CN201425847Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515016A (en) * | 2012-06-29 | 2014-01-15 | 江苏亨通线缆科技有限公司 | High-speed flexible cable for signal communication |
| CN103515016B (en) * | 2012-06-29 | 2016-07-20 | 江苏亨通线缆科技有限公司 | High speed flexible cable for signal communication |
| CN103440920A (en) * | 2013-07-26 | 2013-12-11 | 安徽省巢湖海兴电缆集团有限公司 | Halogen-free flame retardant thin-wall type control cable for special motor train |
| CN104733128A (en) * | 2015-03-18 | 2015-06-24 | 芜湖航天特种电缆厂 | Cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20140601 |