JP6386459B2 - 表面改質オーバーヘッド導体 - Google Patents
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/008—Other insulating material
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
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- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
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- H—ELECTRICITY
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/002—Auxiliary arrangements
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- H—ELECTRICITY
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/008—Power cables for overhead application
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- Manufacturing & Machinery (AREA)
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- Paints Or Removers (AREA)
- Insulated Conductors (AREA)
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Description
コンピュータシミュレーション研究は、同じピーク電流に対する導体の動作温度の低下を測定するために、異なるE/A(吸収率に対する放射率の比)値を使用して実行された。E/A比は、コーティングによって改質された導体の表面特性として考慮された。表1は、オーバーヘッド導体の様々な設計に対するシミュレーション結果を表にしている。
コーティングは、ケイ酸ナトリウム(20重量%)、放熱剤として炭化ホウ素(3重量%)を有する二酸化ケイ素(37重量%)、および水(40重量%)を混合することによって調製された。コーティング組成物は、0.85よりも高い放射率を有する金属基板に塗布される。コーティングの性能改善を測定するために、電流が、1milのコーティング厚を有する金属基板、および被覆されていない金属基板を介して印加される。試験装置は、図5に示され、主に、60Hz交流電流源と、真の実効値クランプオン電流計と、温度データログデバイスと、タイマとから構成される。試験は、標本の周りの空気の移動を制御するために、68インチ幅×33インチ深さの窓付き安全筐体内で行われた。換気のために、排気フードが試験装置の64インチ上方に配置された。
2つの#4AWG固体アルミニウムの被覆された導体の温度上昇に対する風の影響が、180アンペアの電流で評価された。風をシミュレートするために、3つの速度を有するファンが使用され、風は、2フィート遠くから試験されている導体に直接吹いた。試験方法の回路図は、図7に示される。被覆された導体と被覆されていない導体の両方は、180アンペア、太陽光、および風の下で試験され、試験結果は、表2に示されている。被覆された導体は、無風、弱風、および強風をそれぞれ当てられたとき、被覆されていないものよりも35.6%、34.7%、および26.1%温度が低下した。風の速度は、被覆された導体には少しの影響しか持たないが、被覆されていないものには13%の影響を有する。
試験は、被覆されたおよび被覆されていない2/0AWG固体アルミニウムおよび795kcmilのArbutus導体標本に対して行われた。電流サイクル試験方法は、本明細書で適合されるようにANSI C119.4-2004に従って行われた。
1)実施例2で開示されたコーティング組成物で被覆された2/0AWG固体アルミニウム導体。コーティングの厚さは、1milである。
2)被覆されていない2/0AWG固体アルミニウム導体
3)実施例2で開示されたコーティング組成物で被覆された795kcmilのArbutus総アルミニウム導体。コーティングの厚さは、1milである。
4)被覆されていない795kcmilのArbutus総アルミニウム導体
5)アルミニウム板(電気グレードバス)
アルミニウム基板は、以下に説明され、表4にまとめられたように、様々なコーティング組成物で被覆された。コーティング組成物は、白色から黒色までの範囲の色スペクトルを有する。
102 取り込み巻回ロール
104 前処理ユニット
106 コーティングユニット
108 乾燥/硬化ユニット
110 コア、ローラ
112 導体
120 円形断面導電性ワイヤ
130 スペクトル選択性表面層
200 裸オーバーヘッド導体、環状浸液式ダイ
202 内側表面
204 中心開口部
206 チューブ
210 円形導電性ワイヤ
220 スペクトル選択性表面層
300 裸オーバーヘッド導体
310 コア
320 台形状導電性ワイヤ
330 スペクトル選択性表面層
400 裸オーバーヘッド導体
410 台形状導電性ワイヤ
420 スペクトル選択性表面層
Claims (10)
- 無機コーティングで被覆された裸導体を備える表面改質オーバーヘッド導体であって、ANSI C119.4-2004に従って試験されたとき、前記表面改質オーバーヘッド導体の動作温度が、同じ電流の下で、放熱剤を含まない、非改質オーバーヘッド導体の動作温度と比較したとき、少なくとも5℃だけ低下し、前記コーティングは0.5以上の放射率係数を有し、前記コーティングが結合剤および放熱剤を含み、前記結合剤は、ケイ酸ナトリウム、ケイ酸カリウム、ケイ酸リチウムおよびこれらの組み合わせからなる群から選ばれた金属ケイ酸を含み、かつ、前記放熱剤は、酸化ガリウム、酸化セリウム、酸化ジルコニウム、六ホウ化ケイ素、四ホウ化炭素、四ホウ化ケイ素、炭化ケイ素、二ケイ化モリブデン、二ケイ化タングステン、二ホウ化ジルコニウム、酸化亜鉛、亜クロム酸第二銅、酸化マグネシウム、二酸化ケイ素、酸化マンガン、酸化クロム、酸化鉄、炭化ホウ素、ケイ化ホウ素、酸化銅クロム、リン酸三カルシウム、二酸化チタン、窒化アルミニウム、窒化ホウ素、アルミナ、酸化マグネシウム、酸化カルシウム、およびこれらの組み合わせからなる群から選ばれた少なくとも一つの剤を含む、表面改質オーバーヘッド導体。
- 前記コーティングが、0.75以上の放射率係数を有する、請求項1に記載の表面改質オーバーヘッド導体。
- 前記コーティングが、総乾燥コーティングの重量で、5%未満の有機材料を含む、請求項1または2に記載の表面改質オーバーヘッド導体。
- 前記コーティングが5ミクロンから100ミクロンの厚さを有する、請求項1ないし3のいずれか1項に記載の表面改質オーバーヘッド導体。
- a.裸導体を調製することと、
b.前記導体を浸液式ダイに通し、次いでポストコーティング空気ワイプに通すことによって、被覆された導体を形成するために、前記導体の表面に液体コーティング混合物を塗布することと、
c.前記被覆された導体を乾燥させることと
を含み、
前記液体コーティング混合物は結合剤および放熱剤を含み、
前記結合剤は、ケイ酸ナトリウム、ケイ酸カリウム、ケイ酸リチウムおよびこれらの組み合わせからなる群から選ばれた金属ケイ酸を含み、かつ、
前記放熱剤は、酸化ガリウム、酸化セリウム、酸化ジルコニウム、六ホウ化ケイ素、四ホウ化炭素、四ホウ化ケイ素、炭化ケイ素、二ケイ化モリブデン、二ケイ化タングステン、二ホウ化ジルコニウム、酸化亜鉛、亜クロム酸第二銅、酸化マグネシウム、二酸化ケイ素、酸化マンガン、酸化クロム、酸化鉄、炭化ホウ素、ケイ化ホウ素、酸化銅クロム、リン酸三カルシウム、二酸化チタン、窒化アルミニウム、窒化ホウ素、アルミナ、酸化マグネシウム、酸化カルシウム、およびこれらの組み合わせからなる群から選ばれた少なくとも一つの剤を含む、表面改質オーバーヘッド導体を作製するための方法。 - 裸導体を調製することが、前記導体をサンドブラストすることと、前記サンドブラストされた導体をプレコーティング空気ワイプに通すこととを含む、請求項5に記載の方法。
- 前記プレコーティング空気ワイプおよび前記ポストコーティング空気ワイプの一方あるいは両方の後に、前記導体を加熱することをさらに含む、請求項6に記載の方法。
- 前記加熱するステップが、直火への曝露によるものである、請求項7に記載の方法。
- 表面改質オーバーヘッド導体であって、
裸導体と、
実質的に無機でかつ乾燥したコーティング層であって、乾燥重量で、20%から60%の結合剤と、放熱剤とを含み、前記コーティング層は前記裸導体を被覆する、コーティング層と、
を備え、
ANSI C119.4-2004に従って試験されたとき、前記表面改質オーバーヘッド導体の動作温度は、被覆されずかつ同じ電流が加えられたときの前記裸導体の動作温度よりも低く、
前記結合剤は、ケイ酸ナトリウム、ケイ酸カリウム、ケイ酸リチウムおよびこれらの組み合わせからなる群から選ばれた金属ケイ酸を含み、かつ、
前記放熱剤は、酸化ガリウム、酸化セリウム、酸化ジルコニウム、六ホウ化ケイ素、四ホウ化炭素、四ホウ化ケイ素、炭化ケイ素、二ケイ化モリブデン、二ケイ化タングステン、二ホウ化ジルコニウム、酸化亜鉛、亜クロム酸第二銅、酸化マグネシウム、二酸化ケイ素、酸化マンガン、酸化クロム、酸化鉄、炭化ホウ素、ケイ化ホウ素、酸化銅クロム、リン酸三カルシウム、二酸化チタン、窒化アルミニウム、窒化ホウ素、アルミナ、酸化マグネシウム、酸化カルシウム、およびこれらの組み合わせからなる群から選ばれた少なくとも一つの剤を含む、表面改質オーバーヘッド導体。 - 7日間の325℃での熱老化後にマンドレル曲げ試験に合格する、請求項1,2,3,4,9のいずれか1項に記載の表面改質オーバーヘッド導体。
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261681926P | 2012-08-10 | 2012-08-10 | |
US61/681,926 | 2012-08-10 | ||
US201261702120P | 2012-09-17 | 2012-09-17 | |
US61/702,120 | 2012-09-17 | ||
US201361769492P | 2013-02-26 | 2013-02-26 | |
US61/769,492 | 2013-02-26 | ||
US201361800608P | 2013-03-15 | 2013-03-15 | |
US61/800,608 | 2013-03-15 | ||
US13/863,902 | 2013-04-16 | ||
US13/863,902 US9859038B2 (en) | 2012-08-10 | 2013-04-16 | Surface modified overhead conductor |
PCT/US2013/037433 WO2014025420A1 (en) | 2012-08-10 | 2013-04-19 | Surface modified overhead conductor |
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JP2015532763A JP2015532763A (ja) | 2015-11-12 |
JP2015532763A5 JP2015532763A5 (ja) | 2016-05-19 |
JP6386459B2 true JP6386459B2 (ja) | 2018-09-05 |
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JP2015526528A Active JP6386459B2 (ja) | 2012-08-10 | 2013-04-19 | 表面改質オーバーヘッド導体 |
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US (2) | US9859038B2 (ja) |
EP (1) | EP2883231B1 (ja) |
JP (1) | JP6386459B2 (ja) |
KR (1) | KR101929416B1 (ja) |
CN (1) | CN104704580B (ja) |
AR (1) | AR093121A1 (ja) |
AU (1) | AU2013300127B2 (ja) |
BR (1) | BR112015002970B1 (ja) |
CA (2) | CA3048274C (ja) |
CL (1) | CL2015000320A1 (ja) |
HK (1) | HK1206479A1 (ja) |
HU (1) | HUE054350T2 (ja) |
MX (1) | MX359098B (ja) |
MY (1) | MY189482A (ja) |
PE (1) | PE20150546A1 (ja) |
PH (1) | PH12015500273B1 (ja) |
TW (1) | TWI633564B (ja) |
WO (1) | WO2014025420A1 (ja) |
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