LOTO actions
This section shows the LOTO actions that must be carried out, as part of the safety actions, every time
the equipment is started or stopped.
It is responsibility of the customer to carry out maneuvers at the low voltage facility network and on the
post to guarantee a safe scenario for maintenance and operation routines inside the charger.
Follow the indications on “Commissioning” or “Safe stop” sections before applying any LOTO action.
After all these actions, status 2 is reached on the charger.
Disconnect all charging processes following the safe stop
instructions or wait until all charging sessions are finished.
Then, limit the access to the charger, so no one can start a
new charging process.
Disconnect and lock with padlocks all LV facility network
connections to eliminate power completely before the
The customer is the one who disconnects and locks the LV
supply connections, all keys must to be stored in a locked
box and Power Electronics will keep one of the opening
keys.
Once the equipment is stopped, wait until the different
storage buses are discharged (4 or 5 min).
Check with the software visualization application that the
input voltage and equipment’s power are zero.
Open all the circuit breakers.
Although the supply to the AC switch was removed, this step
confirms and locks it, then reconnection is not possible until
the LOTO actions are removed.
Follow the “check points for absence of voltage”.
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