JPS62272408A - Watertight cable - Google Patents
Watertight cableInfo
- Publication number
- JPS62272408A JPS62272408A JP61117032A JP11703286A JPS62272408A JP S62272408 A JPS62272408 A JP S62272408A JP 61117032 A JP61117032 A JP 61117032A JP 11703286 A JP11703286 A JP 11703286A JP S62272408 A JPS62272408 A JP S62272408A
- Authority
- JP
- Japan
- Prior art keywords
- grease
- layer
- tape
- cable
- water
- 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.)
- Pending
Links
- 239000004519 grease Substances 0.000 claims description 46
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 16
- 229920000620 organic polymer Polymers 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 28
- 239000003921 oil Substances 0.000 description 12
- 235000019198 oils Nutrition 0.000 description 12
- 239000000843 powder Substances 0.000 description 7
- 239000004575 stone Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 239000004202 carbamide Substances 0.000 description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 229940126214 compound 3 Drugs 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- -1 string Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229920001083 polybutene Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002998 adhesive polymer Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical class C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- CYKDLUMZOVATFT-UHFFFAOYSA-N ethenyl acetate;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(=O)OC=C CYKDLUMZOVATFT-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000010698 whale oil Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
３、発明の詳細な説明
皮呈上立机几分団
本発明は、走水防止性の優れた新規な水密ケーブルに関
する。DETAILED DESCRIPTION OF THE INVENTION 3. Detailed Description of the Invention The present invention relates to a novel watertight cable with excellent water running prevention properties.
支束の ′−１、！びに”′を ぺ 。 占ケーブル
を防水性とする場合、一般にシース内における多数のケ
ーブルコア間の間隙は防水コンパウンドにて充填される
が、この種のケーブルを地中に直埋布設する場合には、
一層防水性を高めることが要求される。′-1 of the branch! When making a cable waterproof, the gaps between the many cable cores in the sheath are generally filled with waterproof compound, but when this type of cable is buried directly underground, teeth,
It is required to further improve waterproofness.
従来においては、ケーブルを走水防止性とするために、
ケーブルコア間に６０〜１００℃の軟化点又は融点を有
する常温で固体の防水性コンパウンドを充填する方法が
採られてきた。ところで、上記の防水性コンパウンドを
充填するには、該組成物をその軟化点又は融点以上の高
温度に加熱して施与する必要があるが、施与後の冷却に
より該組成物が体積収縮し、ケーブルコアとその上に施
される金属遮水テープとの間に空隙が生じる問題がある
。該空隙は、勿論ケーブルコア内に水が入ると走水路と
なる危険性がある。Conventionally, in order to make the cable waterproof,
A method has been adopted in which a waterproof compound, which is solid at room temperature and has a softening point or melting point of 60 to 100° C., is filled between the cable cores. By the way, in order to fill the above-mentioned waterproof compound, it is necessary to apply the composition by heating it to a high temperature above its softening point or melting point, but cooling after application causes the composition to shrink in volume. However, there is a problem in that a gap is created between the cable core and the metal waterproof tape applied thereon. Of course, there is a risk that the gap will become a running channel if water enters the cable core.
■−仁■」且
上記の問題を解決することを目的として本発明は、ケー
ブル素線間に６０〜１００℃の軟化点又は融点を有する
常温で固体の防水コンパウンドが充填されたケーブルコ
アの上に、片面または両面にグリス層を有するテープ層
を該グリス層をケーブルコア側にして施してなるグリス
−テープ層、更にその上に金属遮水テープ層および有機
高分子のジャケットを有し、上記のケーブルコアと金属
遮水テープ層との間に吸水性を機高分子存在せしめてな
ることを特徴とする水密ケーブルを提供しようとするも
のである。In order to solve the above-mentioned problems, the present invention has developed a cable core that is filled with a waterproof compound that is solid at room temperature and has a softening point or melting point of 60 to 100 degrees Celsius between the cable strands. A grease tape layer is formed by applying a tape layer having a grease layer on one or both sides with the grease layer facing the cable core, and further has a metal water-shielding tape layer and an organic polymer jacket thereon; An object of the present invention is to provide a watertight cable characterized in that a water-absorbing polymer is present between the cable core and the metal water-shielding tape layer.
立朋
グリスは、一般に常温で流動性を有し、しかも１００℃
前後の高温度に加熱されても簡単には流下しない性質を
有する。従って、本発明において用いる防水コンパウン
ドの冷却による体積収縮が生じても、ケーブルコアの上
に施与するグリス−テープ層のグリス層の流動性により
ケーブルコア上に生じんとする空隙がグリスにより補填
され空隙の発生が防止される。・また、グリスは、上記
した通り高温度に加熱されても簡単には流下しない性質
を有するので、たとえケーブルが量温度に遭遇すること
があっても、グリスの流下の問題はない、またさらに、
上記のケーブルコアと金属遮水テープ層との間には吸水
性有機貰分子の粉末が存在せしめられているので、万一
上記の間に空隙が発生してケーブル内に浸水があっても
吸水性を機高分子粉末の吸水並びに膨潤作用により水が
捕獲されてケーブル内に伝播することが防止される。Riho grease generally has fluidity at room temperature, and even at 100℃
It has the property of not easily flowing down even when heated to high temperatures. Therefore, even if volume shrinkage occurs due to cooling of the waterproof compound used in the present invention, the voids that would otherwise occur on the cable core are compensated for by the grease due to the fluidity of the grease layer of the grease tape layer applied on the cable core. This prevents the formation of voids. -Also, as mentioned above, grease has the property of not flowing down easily even when heated to high temperatures, so even if the cable encounters high temperatures, there will be no problem with grease flowing down. ,
Water-absorbing organic molecule powder is present between the cable core and the metal water-shielding tape layer, so even if a gap occurs between the cable core and water gets into the cable, water will be absorbed. The water absorption and swelling action of the polymer powder prevents water from being trapped and propagating into the cable.
付図は、本発明の実施例ケーブルの断面図例であって、
多数本のケーブル素線１からなるケーブルコア２の各ケ
ーブル素線１間には６０〜１００℃の軟化点又は融点を
有する常温で固体の防水コンパウンド３が充填されてい
る。防水コンパウンド３としては、たとえば、米国ライ
トコ社製の防水コンパウンド（＃ ５ Ｂ）などが用い
られる。防水コンパウンド３は、通常の方法により加熱
充填して良い、ケーブルコア２の上にはグリスＮ４を有
するグリス−テープ５が施され、更にその外側に金属遮
水テープ層６が施されている。数字７により示す個所は
、防水コンパウンド３の体積収縮により生じた窪みであ
り、該窪みはグリス層４の流動変形により充填されてい
る。金属遮水テープ層６とグリス−テープ５との間には
、吸水性有機高分子粉末の層８が設けられており、さら
に金属遮水テープ層６の上には有機高分子のジャケット
９が施され金属遮水テープ６と接着一体化されている。The attached figure is an example of a cross-sectional view of an embodiment cable of the present invention,
A waterproof compound 3 that is solid at room temperature and has a softening point or melting point of 60 to 100° C. is filled between each cable strand 1 of a cable core 2 made up of a large number of cable strands 1. As the waterproof compound 3, for example, a waterproof compound (#5B) manufactured by Liteco, Inc. in the United States is used. The waterproofing compound 3 may be heated and filled by a conventional method.A grease tape 5 containing grease N4 is applied on the cable core 2, and a metal waterproof tape layer 6 is further applied on the outside thereof. The location indicated by numeral 7 is a depression caused by volumetric contraction of the waterproof compound 3, and the depression is filled by fluid deformation of the grease layer 4. A layer 8 of water-absorbing organic polymer powder is provided between the metal water-shielding tape layer 6 and the grease tape 5, and an organic polymer jacket 9 is further provided on the metal water-shielding tape layer 6. It is applied and integrated with the metal waterproof tape 6 by adhesion.
グリス−テープ５としては、ポリエステル、ナイロンま
たはその他の有機高分子賞の織布、不織布のテープや鉛
、銅、アルミニウム等の金属遮水テープ等のテープの片
面または両面に次に述べるグリスの層を有するものが用
いられる。グリス層の厚さくテープの両面に施されてい
る場合は、両面の合計厚さ）は、０．２〜３．Ｑｓｍ、
特に０．３〜１．Ｑｍｍ程度が適当である。The grease tape 5 may include a layer of the following grease on one or both sides of a tape such as polyester, nylon or other organic polymer woven fabric or non-woven fabric tape, or metal waterproof tape such as lead, copper or aluminum. The one with the following is used. If the grease layer is applied to both sides of the tape, the total thickness of both sides is 0.2 to 3. Qsm,
Especially 0.3~1. Approximately Qmm is appropriate.
グリスの例を挙げると、例えばトランス油、スピンドル
油、ケーブル油、絶縁油、マシン油、のような石油系油
、ロジン油、ヒマシ油、オリーブ油、鯨油、のような天
然油、ポリブテン、塩素化パラフィン、ポリエチレング
リコール、のような合成重合体などの基油と、たとえば
脂肪酸のナトリウム、カリウム、リチウム、バリウム、
カルシウム、ストロンチウム、亜鉛、鉛、カドミウム、
アルミニウムなどとの塩である金属石ケン系増稠剤、ベ
ントナイト、シリカゲル、銅フタロシアニン、ウレア、
高分子粉末のような非Ｂケン系増稠剤なとの増稠剤とを
適宜に組み合わせで調製されたグリス、或いは石油系炭
化水素油、ポリブテンのようなオレフィン重合体油、ポ
リフルキレングリコール油、塩素化パラフィンのような
ハロゲン化炭化水素油、液状クロロプレンゴムのような
液状ゴム、シリコン油などの高分子化合物と前記グリス
との混合物などをあげることができる。グリスの具体例
としては、ナトリウム石ケングリス、リチウム石ケング
リス、カリウム石ケングリス、カルシウム石ケングリス
、アルミニウム石ケングリス、複合カルシウム石ケング
リス、複合アルミニウム石ケングリス、ウレアグリス、
シリコングリス、ベントナイトグリス、テフロングリス
、銅フタロシアニングリス等を挙げることができる。Examples of grease include petroleum oils such as transformer oil, spindle oil, cable oil, insulation oil, machine oil, natural oils such as rosin oil, castor oil, olive oil, whale oil, polybutene, and chlorinated oils. base oils such as paraffin, polyethylene glycol, synthetic polymers, and fatty acids such as sodium, potassium, lithium, barium,
Calcium, strontium, zinc, lead, cadmium,
Metal soap thickeners that are salts with aluminum etc., bentonite, silica gel, copper phthalocyanine, urea,
Grease prepared by appropriately combining a non-B-based thickener such as polymer powder with a thickener, petroleum hydrocarbon oil, olefin polymer oil such as polybutene, polyfulkylene glycol oil , halogenated hydrocarbon oil such as chlorinated paraffin, liquid rubber such as liquid chloroprene rubber, and a mixture of a polymer compound such as silicone oil and the above grease. Specific examples of grease include sodium stone kengris, lithium stone kengris, potassium stone kengris, calcium stone kengris, aluminum stone kengris, composite calcium stone kengris, composite aluminum stone kengris, urea grease,
Examples include silicone grease, bentonite grease, Teflon grease, and copper phthalocyanine grease.
上記のグリスのうち、ＪＩＳ Ｋ ２２２０５．３
に基づいて測定した２５℃において８５〜４７５の混和
稠度を有すもの、更には、混和稠度が１００〜４００．
特に、１５０〜３５０のものが好ましい。特に好ましく
は、上記した混和稠度を有し、しかも電気絶縁性の優れ
たもの、たとえばウレアグリス、シリコングリス、テフ
ロングリスなどである。Among the above greases, JIS K 22205.3
Those having a working consistency of 85 to 475 at 25°C, furthermore, those having a working consistency of 100 to 400.
Particularly preferred is one between 150 and 350. Particularly preferred are those having the above-mentioned mixing consistency and excellent electrical insulation properties, such as urea grease, silicone grease, and Teflon grease.
グリス−テープ５は、ケーブルコア中に充填された防水
コンパウンドが未だ高温度を保持している間にケーブル
コアの上に施しても良いが、ケーブルコアを上記の充填
作業終了直後から風冷などの方法にて冷却してケーブル
コア中の防水コンパウンドをかなり乃至充分に体積収縮
させてからそれを施すようにすることが好ましい、グリ
ス−テープ５としては、前記した通り、有機高分子質の
テープや金属遮水テープ等が用いられるが、有機高分子
質のテープを用いる場合には、該テープ自体遮水性に乏
しいので、該テープのうえに更にグリス層を有するｒた
は有しない金属遮水テープを施すことが好ましい、金属
遮水テープとしては、少なくとも片面に接着性ポリマ一
層を有するものが好ましい。The grease tape 5 may be applied on the cable core while the waterproof compound filled in the cable core is still at a high temperature, but the cable core may be cooled by air immediately after the above filling operation is completed. It is preferable to apply the waterproof compound in the cable core after cooling it by the method described above to significantly or sufficiently shrink the volume of the waterproof compound in the cable core.As described above, the grease tape 5 is an organic polymer tape. However, when using an organic polymer tape, the tape itself has poor water-shielding properties, so a metal water-shielding tape with or without an additional grease layer on top of the tape is used. The metal water-blocking tape to which the tape is preferably applied is preferably one having one layer of adhesive polymer on at least one side.
グリス−テープ５として金属遮水テープを用いる場合に
は、該テープのうえに更に上記したような金属遮水テー
プを設ける必要はない。When a metal water-shielding tape is used as the grease tape 5, there is no need to further provide the above-mentioned metal water-shielding tape on top of the tape.
グリス−テープ５は、通常の方法（縦添え、または横＠
）にてケーブルコア上に施してもよいが防水コンパウン
ドの体積収縮によりケーブルコアに生じた窪みや隙間に
グリスが充分に満たされるように、テープ縦添え時の絞
りを大きくするにとが好ましい。Apply the grease tape 5 in the usual way (vertical or horizontal).
) may be applied on the cable core, but it is preferable to increase the aperture when applying the tape vertically so that the depressions and gaps created in the cable core due to volumetric contraction of the waterproof compound are sufficiently filled with grease.
吸水性有機高分子の例としては、ポリアクリル酸塩類、
カルボキシメチルセルロース類、ポリビニルアルコール
類、ポリエチレンオキサイド類、酢酸ビニル−アクリル
酸エステル共重合体、でんぷん−アクリル酸グラフフト
共重合体、でんぷん−ポリアクリロニトリルグラフト共
重合体、イソブチレン−マレイン酸共重合体などがある
。吸水性有機高分子は、粉末状、紐状、織布、不織布等
の形態にて用いて吸水性有機高分子粉末層８を形成して
よい、なお、本発明において、吸水性有機高分子は、上
記の付図に示すような場所以外ではケーブルコア２と金
属遮水テープ層６との間の任意の場所であれば何処に存
在せしめてもよい。Examples of water-absorbing organic polymers include polyacrylates,
These include carboxymethylcelluloses, polyvinyl alcohols, polyethylene oxides, vinyl acetate-acrylic acid ester copolymers, starch-acrylic acid graft copolymers, starch-polyacrylonitrile graft copolymers, isobutylene-maleic acid copolymers, etc. . The water-absorbing organic polymer may be used in the form of powder, string, woven fabric, non-woven fabric, etc. to form the water-absorbing organic polymer powder layer 8. In the present invention, the water-absorbing organic polymer is , may be present anywhere between the cable core 2 and the metal water-shielding tape layer 6, other than the locations shown in the accompanying drawings.
有機高分子のジャケットは９、ポリエチレン、ポリ塩化
ビニルなどのジャケット用有機高分子を通常通り押出被
覆して施与することができる。The organic polymer jacket 9 can be applied by conventional extrusion coating of an organic jacketing polymer such as polyethylene or polyvinyl chloride.
着果
従来から使用されてきている防水コンパウンドは、前記
した体積収縮の問題を有するものの、劣化特性、電気特
性、あるいはその他の点において長時間の使用実績を有
する６本発明により、従来使用の防水コンパウンドの欠
点を補って走水防止性の優れた水密ケーブルを容易に製
造することができる。Although the conventionally used waterproofing compounds have the problem of volumetric shrinkage mentioned above, they have a proven track record of long-term use in terms of deterioration characteristics, electrical properties, and other aspects. A watertight cable with excellent water running prevention properties can be easily produced by compensating for the defects of the compound.
叉立炭
以下、実施例および比較例により本発明を一層詳細に説
明する。BEST MODE FOR CARRYING OUT THE INVENTION Below, the present invention will be explained in more detail with reference to Examples and Comparative Examples.
実施例
外径０．９鶴のポリエチレン絶縁被覆層を有する電線２
００対からなるケーブルコアの間隙に、予め１０５℃に
加熱して流動状態とした防水コンパウンド（米国ライト
コ社製＃５Ｂ）を通常の方法により充填した。ついで、
ケーブルコアを略室温まで冷却したのち、厚さ２００μ
鋼のポリエステル不織布テープの両面に厚さそれぞれ０
．１５■−のウレアグリス（日本グリース社製、ＮｏＡ
−１２０１，２５℃における不混和稠度：２００）の層
を有するテープをケーブルコアに縦添えし、その上に吸
水性有機高分子たるポリアクリル酸のカリウム塩の粉末
を打扮し、更に、厚さ２００μ悶のアルミニウムの片面
に厚さ５０μｍの変性エチレン−酢酸ビニル共重合体共
重合体を貼り合わせたアルミニウムテープのエチレン−
酢酸ビニル共重合体層を外側にして縦添えした。このあ
と、伸縮ダイスによる圧縮の方法で縦添え層を圧縮して
ウレアグリスをケーブルコア中に充分行き渡らせた０次
いで、縦添え層上にポリエチレンジャケットを押出被覆
した。Electric wire 2 having a polyethylene insulation coating layer with a diameter of 0.9 mm
A waterproof compound (#5B manufactured by Liteco, Inc., USA), which had been heated to 105° C. and made fluid, was filled in the gap between the cable cores consisting of 00 pairs by a conventional method. Then,
After cooling the cable core to approximately room temperature, it becomes 200μ thick.
Thickness 0 on both sides of steel polyester non-woven tape
．． 15■- urea grease (manufactured by Nippon Grease Co., Ltd., NoA
A tape having a layer of -1201, immiscible consistency at 25°C: 200) is attached vertically to the cable core, and powder of potassium salt of polyacrylic acid, which is a water-absorbing organic polymer, is applied on top of the tape. Ethylene tape made of aluminum tape with a 50 μm thick modified ethylene-vinyl acetate copolymer bonded to one side of 200 μm aluminum.
It was attached vertically with the vinyl acetate copolymer layer facing outside. Thereafter, the longitudinal splice layer was compressed using a compression method using a telescopic die to spread the urea grease sufficiently into the cable core.Then, a polyethylene jacket was extruded and coated on the longitudinal splice layer.
付図は、本発明の実施例により製造された水密ケーブル
の断面図例である。
ｌ・・ケーブル素線
２・・ケーブルコア
３・・防水コンパウンド
４・・グリス層
５・・グリス−テープ層
６・・金属遮水テープ層
８・・吸水性を機高分子の層
９・・有機高分子のジャケットThe attached figure is an example of a cross-sectional view of a watertight cable manufactured according to an embodiment of the present invention. L...Cable wire 2...Cable core 3...Waterproof compound 4...Grease layer 5...Grease tape layer 6...Metal water-shielding tape layer 8...Water-absorbing polymer layer 9... organic polymer jacket
Claims (1)
を有する常温で固体の防水コンパウンドが充填されたケ
ーブルコアの上に、片面または両面にグリス層を有する
テープ層を該グリス層をケーブルコア側にして施してな
るグリス−テープ層、更にその上に金属遮水 テープ層および有機高分子のジャケットを有し、上記の
ケーブルコアと金属遮水テープ層との間に吸水性有機高
分子を存在せしめてなることを特徴とする水密ケーブル
。 ２、吸水性有機高分子を金属遮水テープ層とグリス−テ
ープ層との間に存在せしめてなる特許請求の範囲第１項
記載の水密ケーブル。 ３、グリス−テープ層のグリス層が２５℃において８５
〜４７５の混和稠度（ＪＩＳ Ｋ ２２２０ ５．３）を有するグリスにて構成されてなる
特許請求の範囲第１項又は第２項のいずれかに記載の水
密ケーブル。[Claims] 1. A tape layer having a grease layer on one or both sides on the cable core filled with a waterproof compound that is solid at room temperature and has a softening point or melting point of 60 to 100°C between the cable wires. A grease tape layer formed by applying the grease layer with the grease layer on the cable core side, further comprising a metal water-shielding tape layer and an organic polymer jacket on the grease-tape layer, between the cable core and the metal water-shielding tape layer. A watertight cable characterized by having a water-absorbing organic polymer present therein. 2. The watertight cable according to claim 1, wherein a water-absorbing organic polymer is present between the metal water-shielding tape layer and the grease tape layer. 3. The grease layer of the grease tape layer has a temperature of 85°C at 25°C.
The watertight cable according to claim 1 or 2, which is made of grease having a mixing consistency of ~475 (JIS K 2220 5.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61117032A JPS62272408A (en) | 1986-05-20 | 1986-05-20 | Watertight cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61117032A JPS62272408A (en) | 1986-05-20 | 1986-05-20 | Watertight cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62272408A true JPS62272408A (en) | 1987-11-26 |
Family
ID=14701756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61117032A Pending JPS62272408A (en) | 1986-05-20 | 1986-05-20 | Watertight cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62272408A (en) |
-
1986
- 1986-05-20 JP JP61117032A patent/JPS62272408A/en active Pending
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