CN2351811Y - Strong electromagnetic interference preventing telecommunication electric cable - Google Patents
Strong electromagnetic interference preventing telecommunication electric cable Download PDFInfo
- Publication number
- CN2351811Y CN2351811Y CN 98231550 CN98231550U CN2351811Y CN 2351811 Y CN2351811 Y CN 2351811Y CN 98231550 CN98231550 CN 98231550 CN 98231550 U CN98231550 U CN 98231550U CN 2351811 Y CN2351811 Y CN 2351811Y
- Authority
- CN
- China
- Prior art keywords
- electromagnetic interference
- cable
- strong electromagnetic
- belt
- interference preventing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000037303 wrinkles Effects 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims description 15
- 238000005452 bending Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 4
- 239000011241 protective layer Substances 0.000 abstract 3
- 230000005672 electromagnetic field Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
Images
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- Communication Cables (AREA)
Abstract
The utility model relates to a communication cable, particularly a strong electromagnetic interference preventing communication cable. The strong electromagnetic interference preventing communication cable is composed of a cable core (1), an integrative protective layer (2), a compound wrinkle shielding belt (3) and an outer plastic sheath (4), wherein, the compound wrinkle shielding belt comprises a steel base belt and copper films; the copper films are compounded at both sides of the steel base belt; the cable core is coated in turn by the integrative protective layer, the compound wrinkle shielding belt and the outer plastic sheath; the compound wrinkle shielding belt is lengthways coated out of the integrative protective layer. The utility model has good shielding effect (the shielding coefficient is lower than 0.1) on electromagnetic interference, and good bending performance, and is especially suitable for being used in strong electromagnetic field regions such as electrified railways, etc.
Description
The utility model relates to a kind of telecommunication cable, particularly a kind of overcurrent proof magnetic disturbance telecommunication cable.
Along with the electrified development of China railways, the suffered electromagnetic radiation of the communication line in the electric railway zone is strengthened just day by day.In order to guarantee communication quality, press for a kind of that in the strong electromagnetic radiation zone, use, can overcurrent proof the telecommunication cable of magnetic disturbance.
As everyone knows, the electromagnetic interference that exists in the forceful electric power magnetic area comprises that electric field disturbs and electromagnetic interference.And existing telecommunication cable is formed by cable core, composite sheath, mask tape and plastics oversheath, cable core is successively by composite sheath, mask tape and plastics oversheath parcel, and the opposing electric field disturbs and adopts high conductive material to do the mask tape usually, and the opposing magnetic interference adopts high permeability material to do the mask tape usually.Its weak point is that the telecommunication cable that adopts high conductive material or high permeability material to make as the mask tape merely is all bad to the shield effectiveness of electromagnetic interference.Because under the low frequency situation, high conductive material does not almost have shield effectiveness to magnetic field.And high permeability material itself generates heat because of eddy current effect, has reduced the actual work temperature of cable, has also reduced the useful life of cable simultaneously.
The purpose of this utility model is to overcome the above-mentioned weak point of prior art and provide a kind of overcurrent proof magnetic disturbance to pass through cable.
The technical solution of the utility model is: overcurrent proof magnetic disturbance telecommunication cable is made up of cable core, comprehensive sheath, mask tape and plastics oversheath, cable core is successively by comprehensive sheath, mask tape and plastics oversheath parcel, the mask tape is the composite shielding band, the composite shielding band comprises base steel band and copper film, and copper film is compounded in the outside or the inside and outside two sides of base steel band.
In order to improve bending property of the present utility model, the composite shielding band is a wrinkle shape.
The utility model is owing to adopt as above design, compared with prior art, because the mask tape is the composite shielding band and is wrinkle shape, overcome the deficiency of simple high conductive material mask tape or high permeability material mask tape effectively, shield effectiveness to electromagnetic interference good (shielding factor is below 0.1) and good bending property are particularly suitable for using in strong-electromagnetic field zones such as electric railway.
Below in conjunction with drawings and Examples detailed structure of the present utility model is further described.
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the A-A cutaway view of accompanying drawing 1;
Accompanying drawing 3 is the structural representation of the utility model composite shielding band.
Shown in attached Fig. 1 and 2: overcurrent proof magnetic disturbance telecommunication cable is made up of cable core (1), comprehensive sheath (2), wrinkle composite shielding band (3) and plastics oversheath (4), cable core is successively by comprehensive sheath, wrinkle composite shielding band and plastics oversheath parcel, and the vertical outside that wraps in comprehensive sheath of wrinkle composite shielding band.
As shown in Figure 3: wrinkle composite shielding band comprises base steel band (5) and copper film (6), and copper film is compounded in the two sides of base steel band.
Claims (3)
1, a kind of overcurrent proof magnetic disturbance telecommunication cable of forming by cable core, comprehensive sheath, mask tape and plastics oversheath, cable core is successively by comprehensive sheath, mask tape and plastics oversheath parcel, it is characterized in that the mask tape is the composite shielding band, the composite shielding band comprises base steel band and copper film, and copper film is compounded in the outside or the inside and outside two sides of base steel band.
2, overcurrent proof magnetic disturbance telecommunication cable as claimed in claim 1 is characterized in that the vertical outside that wraps in comprehensive sheath of composite shielding band.
3, overcurrent proof magnetic disturbance telecommunication cable as claimed in claim 1 or 2 is characterized in that the composite shielding band is a wrinkle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98231550 CN2351811Y (en) | 1998-10-26 | 1998-10-26 | Strong electromagnetic interference preventing telecommunication electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98231550 CN2351811Y (en) | 1998-10-26 | 1998-10-26 | Strong electromagnetic interference preventing telecommunication electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2351811Y true CN2351811Y (en) | 1999-12-01 |
Family
ID=33980863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98231550 Expired - Fee Related CN2351811Y (en) | 1998-10-26 | 1998-10-26 | Strong electromagnetic interference preventing telecommunication electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2351811Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311478C (en) * | 2001-06-29 | 2007-04-18 | 皮雷利&C.有限公司 | Method for shielding magnetic field generated by power transmission line and power transmission line |
| CN105139942A (en) * | 2015-09-28 | 2015-12-09 | 张家港市广川电子有限公司 | Communication cable |
| CN110993182A (en) * | 2019-12-03 | 2020-04-10 | 江苏通鼎光电科技有限公司 | Inner shielded railway digital signal cable |
-
1998
- 1998-10-26 CN CN 98231550 patent/CN2351811Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311478C (en) * | 2001-06-29 | 2007-04-18 | 皮雷利&C.有限公司 | Method for shielding magnetic field generated by power transmission line and power transmission line |
| CN105139942A (en) * | 2015-09-28 | 2015-12-09 | 张家港市广川电子有限公司 | Communication cable |
| CN105139942B (en) * | 2015-09-28 | 2017-03-22 | 江苏广川线缆股份有限公司 | Communication cable |
| CN110993182A (en) * | 2019-12-03 | 2020-04-10 | 江苏通鼎光电科技有限公司 | Inner shielded railway digital signal cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |