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1,2,2,2,3,1,1(1.,200333;2.,232089;3.,200005):1986,600MW,,18,WuZi,:;;;;:TG174.41:B:10052748X(2007)06200020DESIGNOFDISTRICTDEEPWELLANODESFORCATHODICPROTECTIONSYSTEMOFUNDERGROUNDPIPELINEINPINGWEIELECTRICPOWERPLANTWUlie1,DONGGong2jun2,ZHUYu2bi2,ZHAOGui2fang2,ZHUEr2chang3,SHENCheng1,ZHOUYong2chao1(1.ShanghaiCenterforCorrosionandProtectionofMetals,Shanghai201202,China;2.ChineseElectricPowerPingweiFactory,Huainan232089,China;3.EastChinaElectricPowerDesigninstitute,Shanghai200005,China)Keywords:Deepwellanode;Cathodicprotection;Systemexamination;Appraisal;Projectdesign180,J.F.Tatnm1986,600MW,273mm,,,;,ThermofitPermarad8018,,20031120042,:20062082181:(1),,,,510,15,,;,,(2),18,,2,,,,(3),,,30328620076CORROSION&PROTECTIONVol.28No.6June20071(),m,955V043E/IE05314515-0.81,-0.98,-0.7635V/11A-0.8424515-1.29,-1.16,-1.2620V/12A-0.7831#451545V/50A-0.9544451525V/1.5A-0.5545220kV4515-1.48,-1.15,-0.9958V/0.2A-0.6436500kV4716-1.254,-0.78,-0.9442V/0.1A-0.6472#4013-1.14,-1.08,-0.9742V/58A-1.208500kV4515-1.02,-1.43,-1.4353.4V/23A-0.918,,,,,(4),,8101112,15,,2005373.9%,18,,(5),,,2,,,,,,21986,30.6m,,:323,5002,m1074#()33.9122500kV16.3283020#31.41641#16.328524.5003,-V1034#0.61720.59432#0.5934220kV0.5845220kV0.5946075#0.6047500kV2.24080.7309500kV0.462101#0.58111013#0.62712020#0.596132#0.690141#0.62115065#0.619kV,-2.24V,,33.1:::60mm8mm40mm4mm,15km403:44GB156-1993GB191-1990SYJ97-1999SYT36-1989SYJ/4006-1990NACERPO169-1996BS7361-1991GB4208NACERP-05-72-85GB50054-1995GBJ149-1990GBJ50150-1991GB50217-1994SYJ23-1997SYJ17-1996SY/T0087-1995DL/T5137-2001SYJ99-2000Q/NWHA01-2002WZY21Q/NWHA02-2002WZAH21Q/NWHA03-2002WZT2122233.2(1)(2)25(3)-0.85-1.50V(/)(4)100%(5),,90%(6)3.33.3.118,,:(1),,,,(2)45m,23,(3),,,18(4),,,,,3.3.2WUZI,,,,,WUZI,:,,;,;;;,,,;(A)3,3,503:13.3.380,LIDA,,3.4,:WUZI15(4550m,WZY21,);15(50V/40A);,,15;1/5min;15;24;18;22;54,54;,12:1,4,,,,,:[1]600MW[Z].,,1989.[2][Z].,2004.[3][C]//JF.Tantum.NACE.1985.[4],.[P].ZL96228997.3.1997-6.[5],.[P].ZL97232551.4.1997-11.(302),,,,,;,,;,,,,3,,,,,,,,,:[1].[M].:,1998.[2].[J].,2001(5):7-11.[3]2003[J].,2004(1):63.[4].[M].:,2004.[5]GB/T732-2005,[S].603: