Circuit breaker with composite sleeve provided with a monitoring device.

摘要

The present invention relates to a circuit breaker comprising a cutout chamber (1) with composite insulating material sleeve consisting of a cylinder made from glass fibres impregnated with epoxy resin furnished externally with a polymer coating forming vanes and with metal collars (105, 115) at its ends. The circuit breaker comprises an arc-detecting means consisting of a fluorescent optical fibre (102), one end of which is arranged outside and close to the said cylinder and the other end of which is connected to a photodetector (112). <IMAGE>