Auxiliary supply must be disconnected last and connected first when possible.
Electric shock hazard. Auxiliary supply power layout is a characteristic of each plant and may
vary from one installation to another. Check the latest electrical schematics of the plant and make
sure no voltage is present by confirming with a multimeter.
Electric shock hazard. Wait until all capacitors of the NB 120 are discharged under 30
V. Check it with a multimeter.
Before any maintenance operation, verify that the equipment is completely stopped before
maneuvering any cutting element. This applies to elements with load-breaking capacity (circuit breakers
and switches) as well as those with no capacity (disconnectors). Under no circumstances any of these
components must be manually operated when the NB 120 is energized.
Remove LOTO actions
Follow the LOTO actions in the inverse order.
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