How do you control De-Isolation of an equipment for testing purposes?
Say like, the motor is isolated for maintenance, now when the mechanic has completed his job, he wants to run the motor to test it.
Testing fails, the motor doesn’t perform as expected, it needs to be isolated again for another trouble shooting.
How do you control this part, to make aure that the mechanic doesn’t go back to troubleshooting without isolation?
In your inspection and testing plan for maintenance events such as this, I would recommend putting in “inspection intervals” as part of the plan and incorporate this into the permit to work sequence.
You will already have isolation and barriers in place, as well as notification to the rest of the work force. It would be easy to fit in a limited lifting of control measures for the purpose of testing the item of equipment rather than needing to lift all of the control measures that will be in place.
That way you still have control of the equipment and other barriers if testing fails or more maintenance needs to take place