The first step is to close all vents and openings at the top of the hoistway to prevent water from entering the elevator shaft.
第一步是关紧电梯井道上方所有的排气口以及出口，防止水进入电梯井道。
2
The mechanical works of hoistway and cabine as well as the electrical installation in the hoistway and controller have to be finished to guarantee runs in normal mode.
The mechanical works of hoistway and cabine as well as the electrical installation in the hoistway, controller and E&I Panel have to be finished to ensure inspection run.