JJC型接触网检修作业车由两台牵引车和十台作业车组成。该车最高运行速度120km/h，顶部安装有175m长的贯通升降作业平台，该车集贯通平台作业、牵引、弓网取电、发电、材料存储和加工、备件和工具储放、食宿、会议、现场办公等功能为一体，主要用于电气化铁路接触网设施的集中检修和日常检查、保养，也可用于检修作业中物料、工具、人员的运输。
Model JJC OCS working car consists of two traction cars and ten working cars. Its maximum traveling speed is 120km/h. The top of it is mounted with a 175m-long through lifting operation platform. The vehicle integrates the functions such as through platform operation and traction, pantograph catenary power receiving, power generation, material storage and processing, storage of the spare parts and tools, accommodation, meeting and on-site office. It is mainly used for centralized maintenance and daily inspection and maintenance of OCS facilities of the electrified railway. It can also be used for materials, tools and personnel transport during maintenance operation.
