Electrical & PPE第 78 / 100 题
What does 'stored energy' refer to in lockout/tagout?
a.Energy in batteries only
b.Backup generators
c.Residual energy such as in capacitors, springs, hydraulics, or elevated parts that must be released or restrained
d.Solar panels
解析
Stored energy is residual or potential energy that remains after the main source is disconnected, such as in capacitors, compressed springs, pressurized hydraulics, or raised machine parts. This energy must be released, blocked, or restrained before servicing. Overlooking stored energy can cause unexpected and dangerous movement.
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