Title :
Lightning disturbance to West Rail and enhancements to the earthing design
Author :
Cheung, H. ; White, R.D.
Author_Institution :
MTR Corp. Hong Kong, Hong Kong
Abstract :
In a storm lasting 5 hours on the night of 20 July 2005, the KCRC West Rail network suffered approximately 9500 lightning strikes which resulted in a significant number of electrical systems failures, particularly to the axle-counter systems. Atkins and KCRC Engineers investigated the failures, and proposed modifications and enhancements to the 25kV earthing on West Rail. These modifications were implemented by KCRC before the summer 2006 rainy season, and have ensured that during 2006 West Rail had significantly improved system reliability by reducing the susceptibility of the axle counters to lightning disturbance.
Keywords :
earthing; fault diagnosis; lightning protection; Atkins Engineers; KCRC Engineers; KCRC West Rail network; axle-counter systems; earthing design; electrical systems failures; lightning disturbance; voltage 25 kV;
Conference_Titel :
Railway Engineering - Challenges for Railway Transportation in Information Age, 2008. ICRE 2008. International Conference on
Conference_Location :
Hong Kong
