In study the OCS reliability, we define OCS as the comprehensive system which comprises of contact suspension, Structure and Assembly, Rgistration Assembly, mast and base, Termination Equipment.

• 在接触网系统可靠性研究中，本文将接触网视为由接触悬挂、支持装置、定位装置、支柱及基础、补偿装置串连而成的综合系统。