CONTROLLED ENVIRONMENTAL VAULT TO BE SUITABLE FOR INSTALLING ELECTRONIC EQUIPMENTS

摘要

PURPOSE: A controlled environmental vault is provided to maintain the proper environment for operating the electronic equipments. CONSTITUTION: A controlled environmental vault comprises a case(10) to store electronic equipments for transmission inside a manhole(1); a conduit(2) extended toward the side of the case by penetrating the manhole to connect the manholes; many leakage discharging holes(13) located between the side wall of the manhole and the side wall of the case; and an entrance(12) in the case for a worker. A pumping device(15) is installed inside the manhole. An air purifier is installed inside the case to maintain a proper temperature. Thereby, electronic equipments are installed safely inside an underground structure.