Microsoft Word - KSR2012A060.doc

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1 YWXY º º t rzyywxyhw]w ƒ r m ƒ o ˆ ƒ A Study on the Characteristics of the Electrical Corrosion by Leakage Current of Seoulmetro ø ã ä ãû ã ä äõô ã Han-Yong Park *, Dong-Nam Shin *, Jae-Chang Sim *, yun-sig Kim * Abstract Since 1974, Seoulmetro opened its first line, line 1 opened line 3 was extended from suseo to ogeum in For making comfortable subway environment, cooling system and screen door(psd) were installed ever since Seoulmetro began to operate its first line, many new facilities were added and now Seoulmetro has both old and new facilities. Due to many mixed new and old facilities, leakage current has very complicated paths. The leakage current from the operation of the train causes the electrical corrosion of buried pipes and rail tracks. This study discusses about the characteristics and trends of the electrical corrosion on rail tracks and preventive methods. Keywords : Electrical corrosion, Leakage current, Buried pipeline, Rail, Drainage System ïƒ r m ¹ƒ ˆ m ¹ƒ ¹ƒ ƒ ƒ g º º ƒ ªp dq ƒ d m ƒ «ˆ ˆ ƒ y ƒ ˆƒ ˆ m vƒ ƒ o m pž my ƒ ¼p r Ÿ ˆ vƒ ƒ o zqƒw Ž k z ˆƒt ˆ «y ƒ ƒ r m ƒ o ˆƒt ˆ w ˆ ƒ o qƒw l wo ää ï ƒ r m ¹ƒ ˆ m ƒ ¹ vº d ¹ƒ ƒ ƒ «m ƒ º w ƒ ªp lƒ d ¹ ƒ ˆ m ˆƒ ƒ ƒ m vƒ ƒ o mp my ¼p Ò å ô ïõ áòãåääååäåëæëéêëêêéëëêäéêäêëã ã ô ïõ ã ô ïõ ã ô ïõ

2 Ÿ ˆl ƒvƒ ƒ o Ÿk v x qƒ w w d ¼p x z ƒ m º r eqƒw ˆ vƒ pw ¹ƒ x ƒv ˆw p ƒ wo pƒ r» wox rƒƒ r m zz wo m zqƒw y¹p ƒ wo l v ˆƒ t ˆ ˆ «y ƒ ƒ r m ƒ o l v ˆƒt ˆ zƒ äää ô ï ø ô à äääääþ ñø Ï ääúï ƒ r m ¹ƒ p sd Ÿ x o p ««p v r l mm o p Ÿƒm Ÿ ˆl qƒ Žl ƒ vƒ ƒ o d ¼p x z ƒl m Ž e qƒ ƒ op r zz zˆ ˆ vƒˆ«m m ˆ m ƒ z zz mz ƒ o ˆ zz ƒ mvƒ š r r hl pvƒ p ƒ o w º º m ˆvƒ ˆ w zz «p o ˆvƒ

3 äääääøñõ wox ˆw p ƒ ± ek ƒ r wˆ op¼l wx ek¼ƒ x z x p wox d wˆx m «ƒ r m p k m ƒ o ˆ w ƒ wo pƒ ¹ zz wo mƒ p ¹ƒ ƒ wo ƒ r ƒ wo wo l Ž l yd s «wo wo wo l p ƒ r mwo ƒ ƒ r mwo ƒ¹º r ¹ƒ s ƒ r ƒ wo wo m o ƒ ¹ƒxm z yr ¹ƒ ¹ƒ ¹ƒ ¹ƒ m l ˆƒk q ¹ƒ q ˆƒ woº pl ˆ wo m wo «pÿ ˆ ƒ r mwo ˆƒ¹º ¹ƒx wo x ƒ ¹ƒ ¹ƒ ¹ƒ ¹ƒ wox p qƒ l wx m ƒ o x z l mz o o l p r¹ ƒ r m ˆƒ Ž

4 p ƒ wo mqƒw ƒl Ž wox ƒ qƒw l ƒ m qƒw ¼p op ˆ«Ž l x mˆ«wx ml ª «ª g ˆ ƒ zˆ z w º ¹ ƒ r m ƒ wo ƒ wo p wox p wo ƒ r m q ƒ wo p wo rl m z x m o l qƒ x m l ƒqƒ m o l ª ««g ˆ ƒ ƒ wo mw v ¹ ˆw ƒ wˆº ª p l ˆvˆ¹ºm äää ô ï ø äääääî o w y¹p wox l ± p ˆ«pŽ kl l t ˆ Ž ˆ«l Ž³ ««k el ƒ o ˆvƒk r v m o o Ž «vp k y ƒ omz ˆk ƒ vƒm ««s Ÿ d 1,000 [Ω/km] 0.09[kg] 0.09[g] [Ω/km] 0.90[kg] 0.90[g] [Ω/km] 9.10[kg] 9.10[g] [Ω/km] 91.3[kg] 91.3[g] - - z ƒ - 9.1[kg] 91.3[kg]

5 ƒ o qƒ ƒz ºtg mzˆ r wo op z ³ o ª ˆ Žkˆ ±l x ƒ zˆk««o ¼p Ž «zˆ Ž «l me r «l Ž «zk tˆ ª Ž Q I. mean 3, m = M = M (1) nf nf ƒª k º ª k ±l «äääääî î ƒ r m ¹ƒ «l ˆƒ r ƒy v l ¹xmyrª om z r «ªp «k «p ¹ ƒ r m ˆƒ l ¹ oxm «ƒ r m ˆƒ¹º ¹ƒx «l ¹«ªp k ¹ƒ ¹ƒ ¹ƒ ¹ƒ Ÿk ªp k p ƒ r ml ¹

6 Ÿ ˆvƒ ƒ o l ƒ m ºm ƒ x zz ek Ž w m¼p x mz vž ˆ o ƒ zz ƒ zˆ ˆ vƒ r ½ ƒ o epl ˆ Ž m «ˆ ƒ r m vƒ ˆ m ¹ vƒ l ˆ m «r xmyr º ƒl ˆ «m q r m º ƒ «r w zk x v «mvƒ ¹ƒxm ˆƒk q ¹ƒy ¹ƒ ƒ ˆ q vƒ ˆ zz l ƒ ƒ o vƒ º ep ªr ŸvˆŽ Ÿkvª l p m vƒ vƒ nd z m± ƒ r m ˆvƒ ¹ƒx ˆ ¹ƒ ¹ƒ ¹ƒ ¹ƒ Ÿk x ˆ w zk x º «p ƒ r m l ƒ o epw zk º d l ml ˆ vƒ mp «w zk p l ˆvƒ m º

7 p ƒ r m ¹ƒ ƒl ˆ vƒ «k r Ÿk p zƒ x ³ p Ž «rzƒ ¹ƒ x «ƒ m ˆ vƒ ¹ƒ ƒ wo ƒ ˆvƒ zz x ˆvƒ ŽŽy wo vƒ º vƒ x Ž «ƒ ˆvƒ y r wo ƒ ƒ wo ƒ «ƒ zzl ˆ vƒ p k p ƒ½yrwo ƒ ˆvƒ rwo vƒ x Ž «ƒ ˆ vƒ º ekƒ ¹ƒ «¹ƒ ˆvƒ q ˆ wo ƒ wo v m± äääääõ ÓÏ p x l ˆvwo k ƒƒ l ƒ ƒ o ± ª vƒ ˆƒt m r k s ml m l ± ª l ˆ z { ˆ p ƒ r m «ˆ m

8 s s Žº m r ½ q ˆ r l s s Ÿ vƒ o ƒ opx m¼p s Žº s ekzˆ º m p l ± ª mml s ««l s ªp ««s s ªp ««Ž s «m ¹ l s Ž vƒ myžs y ˆ m «p Ÿk z ƒ { ˆ m r ƒ o qpw Ž k ˆƒt ˆ vƒ y l vƒ ˆ ƒl r ˆ«ep ˆ ˆ«et wo ƒˆl ˆ y ˆ m± äää ô ï ø á x mz o Ÿƒ z vl ekƒ m m ƒ e m o z m ƒ ¼p ƒ o o «mp m um Ÿ m l ƒ o zz Ÿ l vmv ƒ o ³ x z {m º r zp w m ƒ ƒ d º «p w p ºm p ³ƒ m «ƒ r m ª p m ˆ woxv ƒ o³ ˆ ˆ m± r¹ ˆ zv rˆ z wox x «ƒ o³ ˆ ˆ ƒ o k ««

9 g ƒ o x½ƒ ƒ p Ÿ ˆl ƒ s p m l v xºp ƒ ovƒ zp ˆ mˆ ƒ r v ˆ w m l zz s º w ˆƒ º l d m ˆ w ääñï y t ƒ ƒ r m ƒ o ˆ k v z ˆvƒ m p yž ƒ r m ¹ƒ ˆ zƒ x ³ p «r ¹ƒwo vƒ ƒ x Ž ƒ ˆ vƒ wo ƒ ƒ x p y wo ƒ epl ˆvƒ ª m «ˆ ƒ om ˆ p ƒ wo p Ž ºˆ«pl ˆ l z { ˆ k l ± ª ˆ d Ž º ƒ r m ƒ ˆl ˆ y¹ um» «ˆ ˆvƒ q Ž m «ek¹ g l k d ˆy¹ ˆ m± Ñö [1] IEC 62128_2 (2003) Railway applications - Fixed installations -Part 2: Protective Provisions against the effects of stray currents caused by d.c. traction systems [2] ¹ 3 (2009.4) ˆ ˆ w p ˆ º 2 v, [3] Dale lindemuth (2008) "stray current corrosion control for DC rail transit systems, corrpro [4] ¹ (2008) ƒ o ˆ, r ƒ º 22 2¹ pp.3-14 [5] w º (2008) ƒ o ˆ ˆ, r ƒ º 22 2¹ pp [6] ƒ (2003) ˆ v v, 2³ ˆ ƒt z zˆ º ƒ³ pp [7] 1~4¹ƒ lƒ vž y ƒ(2005.9) ƒ r m [8] o ˆw (1987.6) ƒ r m( ƒ ) [9] (2010) ƒ o v, t [10] v (2011) o ˆ ƒ ƒ om ˆw, t

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