Locking a manual disconnect in the ON position

[Vinniem]

Is it a violation of the NEC to lock a manual disconnect in the ON position, and if not, could someone please tell me the code reference, I can't seem to find it.



Thank you

 

[electricguy61]

Is it a violation of the NEC to lock a manual disconnect in the ON position, and if not, could someone please tell me the code reference, I can't seem to find it.



Thank you

In some cases it would be an OSHA violation unless there's another means to shut it off in an emergency.

 

[480sparky]

In some cases it would be an OSHA violation unless there's another means to shut it off in an emergency.

Disconnects are not e-stops anyway.

 

[iwire]

Disconnects are not e-stops anyway.

I agree.

As long as someone can do LOTO when the time comes I think OSHA would be satisfied.

 

[Rewire]

In some cases it would be an OSHA violation unless there's another means to shut it off in an emergency.

I have seen it in the electrical specs to lock breakers in the on position for equipment like fire alarm panels

 

[480sparky]

I agree.

As long as someone can do LOTO when the time comes I think OSHA would be satisfied.

To add to this: Sometimes, the device is required to be energized at all times, and the disconnect is there only for servicing the thing. It would be unsafe if the thing were accidently shut off, so the disco is locked in the closed position.

 

[Fulthrotl]

I agree.

As long as someone can do LOTO when the time comes I think OSHA would be satisfied.

and there is a disconnecting means, and a padlock on it so some nimrod
doesn't shut off the hydrocracker or something....

so whoever want's to play with it has to get permission first, before they
can create an unsafe situation by turning a critical process off.