| 1. | All kinds of special pipes and conduits ( ditches ) , ash storage sites , wells , pumping stations , water cooling towers , oil depots , dikes and dams , railways , roads , bridges , docks , fuel loading and unloading equipment , lightening arresters , fire - fighting equipment and other related ancillary equipment outside power plants and power transformation stations
（三） 、水力发电厂使用的水库、大坝、取水口、引水隧洞（含支洞口） 、引水渠道、调压井（塔） 、露天高压管道、厂房、尾水渠、厂房与大坝间的通讯设施及附属设施。 |
