| 摘要 |
PROBLEM TO BE SOLVED: To provide a disaster prevention board capable of performing efficient retest.SOLUTION: A disaster prevention board 21 is electrically connected with many fire detectors 1 to be installed in a tunnel to monitor states of the fire detectors 1. The fire detectors 1 have a plurality of fire detection parts 3, have test means 7 for performing performance tests of the fire detection parts 3. The disaster prevention board 21 is connected with the fire detectors 1 by a feed wiring system, has test instruction means 27 for transmitting a test signal for instructing the start of a test to the fire detectors 1 via feed wiring. The test instruction means 27 has: whole test instruction means 29 for instructing a whole test for sequentially executing tests of all the fire detectors 1; and individual test instruction means 31 for instructing an individual test by individually specifying the fire detection parts 3 of the fire detectors 1. |
