| 摘要 |
The invention relates to an apparatus and methods for operation in relatively high radiation fields to remotely switch signal devices through a shared single main umbilical signal cable. The invention is particularly suitable for use in a nuclear reactor, such as a boiling water reactor, and in difficult to access areas in the reactor pressure vessel. One or more main umbilical cables (24) connect a control station (25) to an enclosure (10) housing a signal switching device. The signal switching device allows several signal generating/receiving devices (28), such as cameras and ultrasonic probes, to be controlled by the one or more main umbilical cables (24). |
