CN1888942A - Polyethylene protective sleeve material for ADSS optical cable - Google Patents
Polyethylene protective sleeve material for ADSS optical cable Download PDFInfo
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- CN1888942A CN1888942A CN 200510027162 CN200510027162A CN1888942A CN 1888942 A CN1888942 A CN 1888942A CN 200510027162 CN200510027162 CN 200510027162 CN 200510027162 A CN200510027162 A CN 200510027162A CN 1888942 A CN1888942 A CN 1888942A
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- optical cable
- electric
- adss
- mark
- adss optical
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Abstract
A polyethylene jacket material formulation for the ADSS optical cable, that is: enhances the material surface thermostable and toughness by adding the anti-electric-mark aiding agent; uses the double-peak material to achieve excellent the processing capability and the environment-resistance stress craze capability; adds the high-quality processing rheopectic agent to improve the fluidity and the extruding surfacing capability of the material, thereby the surface of the ADSS optical cable is velvet and exquisite and abrade-resistance, the pressure is 220KV; the 1000h anti-electric-mark guideline that conforms the anti-electric-mark request of the ADSS optical cable.
Description
Technical field:
The present invention relates to a kind of ADSS optical cable anti-electric-mark polyethylene sheath material, relate in particular to a kind of ADSS Polethylene protecting sheath material for optical cable with good anti-electric-mark effect.
Background technology:
The ADSS optical cable is an All Dielectric self-support, it uses in the environment that lays with the tower bar with ultra-high-tension power transmission line, since this optical cable have external diameter little, in light weight, big, the anti-thunderbolt of span be installed, be not subjected to electromagnetic interference (EMI), plurality of advantages such as be easy to lay, and can continue to use existing power circuit, make full use of its shaft tower resource, save a large amount of construction costs, thereby the extremely favor of power department in recent years, in changing, power network is used widely.
Because the ADSS optical cable utilizes the route of power transmission line to install, be erected in the strong electric field environment of ultra-high-tension power transmission line, under this environment, the electromotive force that capacitive coupling between optical cable and high pressure phase line and the earth produces can produce different current potentials on the optical cable surface, cause potential difference (PD), potential difference (PD) can cause leakage current on moist or filthy optical cable surface, the heat that leakage current produced makes optical cable surface portion humid area evaporate to dryness, thereby producing, the instantaneous interruption of due to leakage current in the evaporate to dryness district do band arcing and powerful heat, Ji Lei heat can damage the surface of optical cable gradually, makes sheath material aging, burn, form carbonization passage and dendritic corrosion electricity trace.With the passage of time, oversheath is aging impaired even optical cable core is exposed under the external environment, causes aramid fiber aging, and the cable machinery performance reduces, and the serious consequence of optical cable fracture finally can occur.This problem also is the key constraints that the ADSS optical cable uses in ultra-high-tension power transmission line.
The design service life of ADSS optical cable is normally more than 20 years, and its environment for use is very complicated, not only to bear above-described electrocorrosion, but also to bear various mechanical stress (gravity, the wind Bing Ling load etc. of shaking), drench with rain and pollute (dust, the chemical contamination of manufacturing district, the salt fog of coastland), heat, cold, solar radiation and electromagnetic force, and above various reasons, can both cause the badly damaged of sheath material, so, sheath to the ADSS optical cable, requirement has outside the extremely excellent ultra-violet radiation resisting and resisting environmental stress and cracking, and also requirement can stand the test of high voltage environment for a long time.
Because of there are above-described many technological difficulties in ADSS anti-electric-mark cable jacket material, for a long time, the main dependence on import of China ADSS cable outer sheath material.Along with China's rapid development of economy, the market demand of ADSS cable outer sheath material is sharply expanded, often occur on the market that supply falls short of demand; The phenomenon of holding money to buy, therefore, the ADSS cable outer sheath material of exploitation high-performance anti-electric-mark has suitable significant meaning.
Summary of the invention:
The invention provides a kind of prescription, and processing technology is provided with ADSS optical cable of good anti-electric-mark effect with protective cover material.By reasonable setting to ultraviolet light absorber; Add the anti-electric-mark auxiliary agent; Adopt bimodal material, reached good processing characteristics and outstanding environmental stress cracking resistance, added the processing rheological agent of high-quality again, improved the mobile of material and extruded superficiality, make ADSS optical cable smooth surface exquisiteness and have extremely excellent wearing quality.
Product of the present invention has passed through the anti-electric-mark test of material 220KV voltage levels and has tested with the anti-electric trace of the 1000h of this manufacture of materials, has satisfied the requirement of ADSS optical cable to oversheath fully.
Further specify below in conjunction with embodiment:
The present invention fill a prescription contained composition and ratio:
HDPE 40-50％
EVA (VA content 18) 10-25%
EVA (VA content 28) 15-25%
Methyl-3,3,3-trifluoropropyl siloxane 35-45%
Carbon black 2.5-3.5%
MD697 0.5-1.0％
1790 0.5-1.5％
As shown in the Examples, by above-mentioned prescription mixing each component, add the weight-loss type drawing-in device, adopting the spiral material-uploading style to add the twin-screw mixer machine carries out mixing, add single screw extrusion machine again and extrude the water ring granulation, again labor and materials are added screening machine and carried out, add drier and dry, enter drying machine drying again, can obtain product of the present invention behind the last metering packing.
Claims (2)
1, a kind of ADSS Polethylene protecting sheath material for optical cable is characterized in that: added the anti-electric-mark auxiliary agent in prescription---methyl-3,3,3-trifluoropropyl siloxane polymeric elastic body increases the surface refractory and the toughness of PE material, thereby reaches the effect of anti-electric-mark.
2, a kind of ADSS Polethylene protecting sheath material for optical cable according to claim 1 is characterized in that: adopt following prescription:
HDPE 40-50％
EVA (VA content 18) 10-25%
EVA (VA content 28) 15-25%
Methyl-3,3,3-trifluoropropyl siloxane 35-45%
Carbon black 2.5-3.5%
MD697 0.5-1.0％
1790 0.5-1.5％
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510027162 CN1888942A (en) | 2005-06-27 | 2005-06-27 | Polyethylene protective sleeve material for ADSS optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510027162 CN1888942A (en) | 2005-06-27 | 2005-06-27 | Polyethylene protective sleeve material for ADSS optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1888942A true CN1888942A (en) | 2007-01-03 |
Family
ID=37578228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510027162 Pending CN1888942A (en) | 2005-06-27 | 2005-06-27 | Polyethylene protective sleeve material for ADSS optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1888942A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122051A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Tracking resistant polyethylene sheath material for ADSS optical cable |
| CN104151681A (en) * | 2014-08-29 | 2014-11-19 | 上海至正道化高分子材料股份有限公司 | High-tracking-resistant ADSS (all dielectric self-supporting) optical cable jacket material |
| CN104151694A (en) * | 2014-08-29 | 2014-11-19 | 上海至正道化高分子材料股份有限公司 | Electric arc flashover-resistant ADSS (all-dielectric self-supporting) cable jacket material |
-
2005
- 2005-06-27 CN CN 200510027162 patent/CN1888942A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122051A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Tracking resistant polyethylene sheath material for ADSS optical cable |
| CN104151681A (en) * | 2014-08-29 | 2014-11-19 | 上海至正道化高分子材料股份有限公司 | High-tracking-resistant ADSS (all dielectric self-supporting) optical cable jacket material |
| CN104151694A (en) * | 2014-08-29 | 2014-11-19 | 上海至正道化高分子材料股份有限公司 | Electric arc flashover-resistant ADSS (all-dielectric self-supporting) cable jacket material |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |