METHOD FOR AUTOMATIC FIRE PREVENTION FROM sincere in electrical networks or installation, AND DEVICE FOR ITS IMPLEMENTATION

摘要

1. A method for automated fire prevention of arcing in electric or electrical networks, which is measured in the total electric current passing from the mains into the protected circuit, characterized in that the filtering by the sum current measured protected circuit suppresses low-frequency components of the spectrum up to a frequency of several hundred kHz, the magnitude of the received signal without accumulation is compared with a predetermined value and when this value exceeds each formed pulse of fixed duration ti somewhat less half cycle of the mains, which is subjected to integration in the accumulator is compared with a threshold that obtained when entering the drive several pulses in a row or a minimum interval, when the signal level in storage means of the threshold signal is formed, disconnecting the protected circuit Electrical from the mains, and (or) issuing a warning signal at a pulse rate less than the predetermined Incoming razryazhaetsya.2 drive. Apparatus for automated prevent fire in the electrical network or an installation, consisting of a measuring unit (sensor), the block forming RF spectrum storage unit, the comparator unit, forming unit commands and actuator body, characterized in that the output signal from the block forming RF spectrum coupled with a further set input comparator unit, the output of which is connected to the input of the additional command generation unit, and the output from the command generating unit connected to the input unit Nako captivity.