SU936040A1 - Electric wire - Google Patents
Electric wire Download PDFInfo
- Publication number
- SU936040A1 SU936040A1 SU802952751A SU2952751A SU936040A1 SU 936040 A1 SU936040 A1 SU 936040A1 SU 802952751 A SU802952751 A SU 802952751A SU 2952751 A SU2952751 A SU 2952751A SU 936040 A1 SU936040 A1 SU 936040A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- insulation
- frequency signals
- electric wire
- wires
- energy
- Prior art date
Links
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 239000006229 carbon black Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Communication Cables (AREA)
Description
(54) ЭЛЕКТРИЧЕСКИЙ ПРОВОД(54) ELECTRIC WIRE
Изобретение относитс к электротехнике и может найти применение, в. частности дл питани электрическим током различных электро- и радиоустройств с одновременным подавлением паразитных высокочастотных сигналов, создаваемых этими устройствами, или защитой их от проникновени высокочастотных помех из электросети. Известны провода, помехоподавл ющие свойства которых обусловлены ослаблением энергии высокочастотных сигналов в токопровод щей жиле, котора изготавливаетс многослойной; при этом низкочастотные сигналы проход т по внутренней части жилы, имеющей высокую проводимость, а высокочастотные затухают в наружном слое из металла с высокими удельным сопротивлением и магнитной проницаемостью, куда вытесн ютс вследствие поверхностного эффекта 1 . Недостатком таких проводов вл етс низкий коэффициент ослаблени высокочастотных сигналов, сложность изготовлени и мала гибкость. Известны провода, изол ци которых содержит в качестве наполнителей материалы , обладающие повышенной поглощающей способностью по отношению к энергии высокочастотных сигналов: сажу, ферритовый порошок и др. 2 и 3. Недостатком проводов такого типа вл етс то, что при повышении содержани наполнител в изол ции одновременно с улучшением помехоподавл ющих свойств резко падают пробивное напр жение.и электрическое сопротивление изол ции. Известен провод, содержащий токопровод щую жилу, включающую семь медных проволок во внутреннем повиве и двенадцать стальных проволок во внешнем повиве, и изол ционный слой, выполненный из резины с добавлением 5-6% сажи 3. Недостаток такого помехоподавл ющего провода заключаетс в том, что он имеет низкий коэффициент ослаблени энергии высокочастотных сигналов (около 0,5 дБ/м на частоте 50 МГц, при сечении 1,5 мм), т. е. слабо выраженный помехоподавл ющий эффект, что св зано с малым содержанием сажи в изол ции. Дальнейшее повышение содержани сажи в резине недопустимо, так как она приобретает провод щие свойThe invention relates to electrical engineering and can be used, c. Specifically, they supply electric current to various electrical and radio devices while simultaneously suppressing spurious high-frequency signals generated by these devices, or protecting them from high-frequency interference from the power grid. Wires are known, the interference suppressing properties of which are due to the attenuation of the energy of high-frequency signals in a conductor core, which is made multi-layered; at the same time, low-frequency signals pass through the inner part of the conductor having high conductivity, and high-frequency signals are attenuated in the outer layer of metal with high resistivity and magnetic permeability, where they are displaced due to surface effect 1. A disadvantage of such wires is the low attenuation ratio of high frequency signals, manufacturing complexity and low flexibility. Wires are known, the insulation of which contains as fillers materials that have an increased absorption capacity with respect to the energy of high-frequency signals: carbon black, ferrite powder, etc. 2 and 3. The disadvantage of this type of wire is that with increasing content of filler in insulation simultaneously with the improvement of the interference suppressing properties, the breakdown voltage drops sharply and the electrical resistance of the insulation. A wire containing a conductor core comprising seven copper wires in an internal layer and twelve steel wires in an external layer, and an insulating layer made of rubber with the addition of 5-6% carbon black are known. The disadvantage of this interference suppression wire is that it has a low attenuation energy of high-frequency signals (about 0.5 dB / m at 50 MHz, with a cross section of 1.5 mm), i.e. a weakly pronounced interference suppression effect, which is associated with a low content of soot in the insulation. A further increase in the content of carbon black in rubber is unacceptable, as it acquires its own
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802952751A SU936040A1 (en) | 1980-08-07 | 1980-08-07 | Electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802952751A SU936040A1 (en) | 1980-08-07 | 1980-08-07 | Electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU936040A1 true SU936040A1 (en) | 1982-06-15 |
Family
ID=20906886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802952751A SU936040A1 (en) | 1980-08-07 | 1980-08-07 | Electric wire |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU936040A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2237923A (en) * | 1989-09-01 | 1991-05-15 | Eev Ltd | Transmission lines with non-linear dielectric |
| US7087876B2 (en) | 1998-06-15 | 2006-08-08 | The Trustees Of Dartmouth College | High-frequency melting of interfacial ice |
| US7164100B2 (en) | 1998-06-15 | 2007-01-16 | The Trustees Of Dartmouth College | High-frequency de-icing of cableways |
-
1980
- 1980-08-07 SU SU802952751A patent/SU936040A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2237923A (en) * | 1989-09-01 | 1991-05-15 | Eev Ltd | Transmission lines with non-linear dielectric |
| US7087876B2 (en) | 1998-06-15 | 2006-08-08 | The Trustees Of Dartmouth College | High-frequency melting of interfacial ice |
| US7164100B2 (en) | 1998-06-15 | 2007-01-16 | The Trustees Of Dartmouth College | High-frequency de-icing of cableways |
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