Patent ID: 8214005

Claim:
Method for operation of an arrangement having at least one superconducting cable, which is surrounded by a cryostat which consists of two metallic tubes, which are arranged concentrically with respect to one another and enclose vacuum insulation between them, and which cryostat ( 2 ) surrounds not only the cable but also a cavity ( 8 ) for a pressurized coolant to pass through, said method comprising the steps of: arranging at least at one end of the cryostat, a reservoir area, which is connected to the cryostat, for the liquid coolant; using a pump which forces the coolant into the cryostat during operation of the arrangement; and arranging, at least in the supply path of the coolant from the reservoir area to the cryostat, a valve which is open during operation of the arrangement, is connected to at least one unit monitoring the soundness of the cryostat and is blocked when a signal which corresponds to a fault message is present from the monitoring unit, in order to interrupt the supply of the coolant to the cryostat.