High-voltage system, comprising: at least one high-voltage component; and a safety device having a coupling device which switchably couples high-voltage components of the high-voltage system to external components and which is designed to electrically isolate the high-voltage components from the external components as a function of the operation of a safety switch, and having a discharge circuit which is designed to electrically discharge the high-voltage components as a function of the operation of the safety switch, characterized in that the safety device comprises a monitoring device which is designed to monitor electrical parameters of the discharge circuit or the high-voltage components and to release the locking of a housing for the high-voltage components when at least one of the electrical parameters of the discharge circuit or the high-voltage components falls below a predetermined threshold value, wherein the high-voltage system further comprises: a housing which protects the at least one high-voltage component against access from the outside; a locking mechanism which lockably closes the housing; a safety switch which is coupled to the coupling device and the discharge circuit; and an operating device which is coupled to the locking mechanism and the safety switch and which is designed to be operated in order to unlock the housing, wherein the operating device has a service disconnect switch which can be operated by a maintenance key. at least one high-voltage component; and a safety device having a coupling device which switchably couples high-voltage components of the high-voltage system to external components and which is designed to electrically isolate the high-voltage components from the external components as a function of the operation of a safety switch, and having a discharge circuit which is designed to electrically discharge the high-voltage components as a function of the operation of the safety switch, characterized in that the safety device comprises a monitoring device which is designed to monitor electrical parameters of the discharge circuit or the high-voltage components and to release the locking of a housing for the high-voltage components when at least one of the electrical parameters of the discharge circuit or the high-voltage components falls below a predetermined threshold value, wherein the high-voltage system further comprises: a housing which protects the at least one high-voltage component against access from the outside; a locking mechanism which lockably closes the housing; a safety switch which is coupled to the coupling device and the discharge circuit; and an operating device which is coupled to the locking mechanism and the safety switch and which is designed to be operated in order to unlock the housing, wherein the operating device has a service disconnect switch which can be operated by a maintenance key. a housing which protects the at least one high-voltage component against access from the outside; a locking mechanism which lockably closes the housing; a safety switch which is coupled to the coupling device and the discharge circuit; and an operating device which is coupled to the locking mechanism and the safety switch and which is designed to be operated in order to unlock the housing, wherein the operating device has a service disconnect switch which can be operated by a maintenance key.