New member Tom
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Re: Generator lockout

Lockout requirements depend on the type of service activity being performed on the gen set.  The typical minimum lockout points would include the following:

  1. Battery disconnect (to prevent engine from being started)
  2. Generator main breaker or downstream disconnect (although the gen set is usually connected to an ATS, the ATS can't be considered a LO point)

Depending on the configuration, the following additional lockout points might need to be considered:

  1. Heaters (likely to be fed from normal power source)
  2. control and or monitoring power (that control starting relay)

Hope this helps!


Accepted Solution

Generator lockout

What's the best method to lock out a generator set for maintenance purposes?