| 摘要 |
Installation for monitoring, maintenance and control of an electrical lighting network, comprising light fittings (8) supplied by a line (9), comprising, for each light fitting (8), a monitoring module (14) detecting the flow of a current in the line (9) of the light fitting and the presence of a voltage across the line (9) and measuring the phase shift of the current at the starting head (3), a monitoring unit (15) comprising, for each start (4-7), a voltage detection device which is connected to each module (14) by a data transmission system and which performs cyclic interrogation of each module (14), and a centralised control unit (16) which is connected to each unit (15) by a data transmission system. <IMAGE>
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