... coupon riser corrosion time integration stray current interference Houston integration current density discharge current dynamic dc stray current interference Corrosion Behavior of Buried Pipeline under Dynamic DC Stray Current Interference Huimin Qin, Yanxia Du , Jie Liu Institute...

... texas 77084 foreign pipeline Pipeline Corrosion cathodic protection system stray current interference carrier pipe riser corrosion Publication Division coating test station installation materials and corrosion AC voltage pipeline construction PIPELINE NEW CONSTRUCTION CHALLENGES Eric S...

... ABSTRACT In order to control corrosion of sub-high-pressure natural gas pipeline which is caused by dynamic DC stray current interference, a series of cathodic protection related parameters were tested, including pipe-to-soil potential, soil resistivity, sacrificial anode performance...

... coating defect An Application of ECDA to a buried pipeline affected by Stray Current Interference Jinyun Zhao PetroChina Pipeline R D Center No.51 Jinguang Road LangFang,HeBei, 065000 China Yanping Teng PetroChina Pipeline R D Center No.51 Jinguang Road LangFang,HeBei, 065000 China Feng Zhang...

... and commissioning of CP system of electrically isolated new pipeline sections, with special emphasis on DC stray current interference due to existing anode ground beds and existing pipelines crossing/parallelism. Case studies are included, with discussions on results of interference testing, interference mitigation...

... ABSTRACT: In cities, stray current interference on underground pipelines caused by metro systems may be a serious issue due to their construction and limited urban space. The sacrificial anode cathodic protection (SACP) system, usually used as an external corrosion control method for the city...

... ABSTRACT Severe pipe-to-soil potential swings, indicating DC stray current interference, were observed on the natural gas distribution system in Phoenix, Arizona during the startup and initial operation of the Valley Metro Rail (VMR) system. Cooperative testing involving VMR and the area s gas distribution...

... INTRODUCTION ABSTRACT: Use FFT (Fast Fourier Transform) data signal processing method for the detection and characterization of oil & gas pipeline's alternating voltage stray current interference. The results showed that this method is capable of distinguishing power frequency AC...

... INTRODUCTION ABSTRACT: Presents an actual case history of stray current interference from a LRT system on a three circuit 69kV pipe-type cable system, the corrective action taken, and its results. Construction of the Dallas Area Rapid Transit (DART) light rail transit (LRT) starter...

... are solely those of the author(s) and are not necessarily endorsed by the Association. Printed in the U.S.A. DYNAMIC STRAY CURRENT INTERFERENCE TESTING AND MITIGATION DESIGN FOR A 90-INCH WATER MAIN Rogelio de las Casas Ron Turner Kristi Roe EN Engineering 7135 Janes Avenue Woodridge, IL 60517 ABSTRACT...

... ABSTRACT Stray current interference may cause pipeline corrosion resulting in environmental pollution, unsafe operations, and a reduction of pipeline service life. This paper describes the results of a systematic field investigation of the stray current interference from a DC Light railway...

... ABSTRACT In presence of stray current interference due to DC transit systems, CP is operated at so-called "constant potential" condition. This technique consists of a continuous measurement of the pipeline potential by a fixed reference electrode, and the use of such measured potential...

... stray current interference Houston INVESTIGATION OF STRAY CURRENT FROM DC SUBWAY SYSTEM IN KOREA Yoon-Cheol Ha, Dae-Kyeong Kim, Jeong-Hyo Bae, Tae-Hyun Ha, and Hyun-Goo Lee Korea Electrotechnology Research Institute 28-1, Seongju-dong Changwon, 641-120, Korea ABSTRACT The stray current from DC...

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