What are the key steps involved in a Lockout/Tagout (LOTO) procedure on a WEC?

A Lockout/Tagout (LOTO) procedure on a Wave Energy Converter (WEC) is a critical safety process to prevent the unexpected energization or startup of equipment during maintenance or servicing. The first step is preparation, which involves identifying all energy sources (electrical, hydraulic, pneumatic, mechanical) that need to be isolated and understanding the specific control procedures for the equipment. Second, notification is required. All affected personnel must be informed that the equipment will be shut down and locked out. Third, shutdown involves de-energizing and shutting down the equipment using normal operating procedures. Fourth, isolation is crucial. All energy-isolating devices (circuit breakers, valves, disconnect switches) must be located and operated to isolate the equipment from the energy source. Fifth, lockout involves applying lockout devices (locks) to each energy-isolating device. Each authorized employee performing the maintenance should apply their own lock, ensuring that only they can remove it. Sixth, tagout is applied in conjunction with lockout. A tag is attached to each lockout device, identifying the employee who applied the lock and the reason for the lockout. Seventh, stored energy must be relieved. Any stored energy, such as compressed air in accumulators or potential energy in springs, must be safely discharged or restrained. Eighth, verification is the final and most critical step. After all lockout and tagout devices have been applied, the equipment must be tested to verify that it is completely de-energized and cannot be started up. This may involve attempting to start the equipment or using test instruments to verify the absence of voltage or pressure. The equipment can only be considered safe for maintenance after this verification has been completed.