Study on pipeline interference from stray current of DC light railway
R&D Center of PetroChina Pipeline Company
Corrosion & Protection Technoloogy Research Institude
physical addresses: 51# Jingguang Road Langfang
Hebei 06500 P.R.China
Tel: 86-316 2170727
The stray current interference may cause pipeline corrosion and environment
pollution, even affects safe production and reduces pipeline service life. This paper
describes the results of a systematic field investigation of the stray current
interference from DC Light railway. To mitigate the stray current interference,
drainage by grounding technique and cathodic protection unit have been adopted.
So far, the stray current effects were greatly reduced.
Keywords: buried pipeline; DC stray current; interference; cathodic protection;
drainage by grounding