Signal light unit
The power supply is introduced from the combination cabinet to control the display status of the signals, directly issuing train operation commands to the railway personnel. The correct display of various signals is directly related to the safety of train operation. Therefore, the signal light circuit must be a safe circuit with strictness and reliability. Because it has cable lines for indoor and outdoor communication, the design of the signal light circuit must have phase-loss protection and cross-wiring protection measures. Y-series circuit breakers are selected
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