HIGH-VOLTAGE APPARATUS AND VEHICLE

The present invention provides a high-voltage apparatus capable of quickly detecting the entry of water into a housing. According to the invention, the high-voltage apparatus includes a battery unit,a case that includes a circumferential wall section in which a cable insertion port that opens sideways is formed and that is configured to accommodate the battery unit, and a water detection sensor that is disposed at a portion located adjacent to the circumferential wall section below the cable insertion port inside the case and that is configured to detect water that has entered the case. 本发明提供一种能够迅速地检测水向壳体内的进入的高电压装置。本发明的一方案的高电压装置具备：蓄电池单元；壳体，其具有形成有向侧方开口的线缆插入口的周壁部，并收容蓄电池单元；以及水检测传感器，其在壳体内配置于线缆插入口的下方，且配置于位于靠近周壁部的位置的部分，来检测进入到壳体内的水。