【教えて下さい】「宝物はどん底にしかな...」の英訳

To provide a car for an elevator capable of protecting a passenger in the car from flood and escaping to the outside of the car even when a drive equipment of the elevator is failed by flood damage, feeding of electricity is stopped and the passenger is shut up in the car.
水害によりエレベータの駆動機器が故障、給電が停止し、乗かご内に乗客が閉じ込められた場合でも、乗かご内の乗客を浸水から守るとともに、乗かごの外へ脱出できるエレベータの乗かごを得る。 -

http://ejje.weblio.jp/sentence/content/shut+up+and+drive