Procedure and sampling system for obtaining a sample of the atmosphere in a reactor containment building of a nuclear installation

摘要

Nuclear installation with a reactor containment building (2) and with a sampling system (1, 1 ') designed to obtain a sample of the atmosphere in the reactor containment building (2), in which the sampling system (1, 1 ') comprises a sampling conduit (8) connected to a depression system (12) and an analysis system (14) and which flows into the reactor containment building (2), characterized in that a device for throttling (30) is connected before the sampling line (8) on the gas side in case of reconnection of the gas with the atmosphere in the reactor containment building (2).