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Re: Generator lockout

I think Tom makes a good point.  If it's got power going to the gen set, it needs to be turned off and locked off.  I think OHSA has some "fancy" wording for it, but that is their intent.

 

 

 

Larry Louree
Florida Registered Electrical Contractor
ER0013091
Apopka, Florida
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!

 

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Generator lockout

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