Lockout and tagout devices must be standardized and classified by any of these criteria except

Lockout and tagout devices must be standardized and classified by any of these criteria except

• A. Energy source
• B. Location
• C. Mechanism
• D. Magnitude

Answer: (C)

The essential idea is that lockout/tagout devices are standardized to ensure they properly fit the energy isolating device and reliably prevent energizing during service. They are classified by the type of energy source involved, where the energy isolating device is located, and the amount of energy that could be released (the magnitude). The specific internal mechanism of the lockout device isn’t used as a criterion for classification—two devices with different locking mechanisms can still be appropriate as long as they fit the isolating device and match the energy source and its potential energy. That’s why mechanism is the exception.

The essential idea is that lockout/tagout devices are standardized to ensure they properly fit the energy isolating device and reliably prevent energizing during service. They are classified by the type of energy source involved, where the energy isolating device is located, and the amount of energy that could be released (the magnitude). The specific internal mechanism of the lockout device isn’t used as a criterion for classification—two devices with different locking mechanisms can still be appropriate as long as they fit the isolating device and match the energy source and its potential energy. That’s why mechanism is the exception.