| 摘要 |
The invention relates to safe transfer of electric power from power source to load at enterprises with explosion-dangerous atmosphere, in particular to remote control of identifiers of automated systems of basic account (ASBA) registering time of lowering and departure of miners at ore-mining enterprises and coal mines, with ones dangerous by gas and dust included. Spark-safe system of remote power supply of identifiers of basic registration systems has power source, to its live wires at the beginning of each of cable communication lines restricting resistors are connected, stabilitron, current stabilizer, the first and the second optrons, control block for data exchange, and at the end of each cable communication line first and second transistors are installed, optron, first and second resistors, restricting stabilitron, collecting capacitor and identifiers. Use of the system provides possibility of information interchange between identifiers and control blocks by same cable lines with spark-safe lower supply of identifiers under conditions of spark-dangerous atmosphere.
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