Energy Isolation Details
Ask the Control of Work Administrator to show that accurate details of the Energy Isolation are recorded in the Control of Work Log?
Ask the PPW to explain the reason for the isolation; where the equipment / system has been isolated: and what level of Energy Isolation is in place?
Ask the PPW to show where the Energy Isolation Certificate is available at the worksite; and if it is a Level 1 Isolation; where else it is being held?
Rig Specific Procedures Includes (ask RP or the PPW)
To explain where the level of Isolation is defined.To explain where the RSP identifies any auto, remote or pressure or temperature start functions, and ask what would happen if they were activated.
To show the points of isolation on the as built drawing, diagram or schematic.
Ask if there are verification of any stored commands, fail safe positions, reset and / or re-start sequence or indexing upon re-energizing equipment and systems with a Programmable Logic Controller (PLC) in this task
Electrical Energy Isolation (ask the Electrical CP)
To demonstrate that all Electrical Energy Isolations are in place at the specified points and as per the methods stated on the Energy Isolation Certificate?
Verify that the Electrical Isolation was conducted by a designated "Competent Person" for the equipment / system isolated as per the OIM's approved list at the COW Center.
Mechanical Energy Isolation (ask the Mechanical CP)
To demonstrate that all Mechanical Energy Isolations are in place at specified points as per the methods stated on the Energy Isolation Certificate?
Verify that the Mechanical Isolation was conducted by a designated "Competent Person" for the equipment / system isolated as per the OIM's approved list at the COW Center.
Hierarchy of Isolation Control (ask the CP or the RP)
Ask for an explanation of the Energy Isolation Hierarchy of Control and based on it, what consideration was made to determine the type of isolation /s that they put in place.
Ask for an explanation of how lock boxes, individual padlocks, and tags have been applied for the Energy Isolation conducted?
Ask to be shown the Energy Isolation tags and check they are suitably secured and clearly state: (name of CP; date/time of isolation; isolation certificate number; department and number of Lock Out padlocks (s) in use; status of the switch / breaker / valve; confirmation of initial "Try to Operate")
Try To Operate: (ask the CP, RP or PPW)
Ask for an explanation of how the equipment / system isolated had been proven to be de-energized on initial isolation by "Try To Operate" at all control points, where the control points are, and was this witnessed by the CP, RP, and PPW?
Ask if "Try To Operate" has been performed for any other reason and if so where has this been recorded? (Following function testing; following handover of task; on re-start of work if previously in Long Term Energy Isolation; on return to the worksite when tag out only has been possible).