I had a conversation with a code committee member yesterday and I was told:
1. 430.102 only applies to rooftop HVAC units.
2. If a company has a lock out tag out policy then exception B applies.
3. Local disconnects are hazardous.
Not exactly what I expected, but now the expert has spoken so I will comply. :jawdrop:
I suggest that the panel member has no idea of what he is talking about.I had a conversation with a code committee member yesterday and I was told:
1. 430.102 only applies to rooftop HVAC units.
The (b) subsection of the of the Exception to 430.102(B)(2) only applies in industrial installations. It does not apply anywhere else even if they have a written lockout policy.2. If a company has a lock out tag out policy then exception B applies.
How are they hazardous?3. Local disconnects are hazardous.
You have an opinion from one "expert". That does not mean anything more than you have an opinion. It is no more valid that the opinions you will find on this forum, and in this case the "expert" is just plain wrong.Not exactly what I expected, but now the expert has spoken so I will comply. :jawdrop:
How are they hazardous?
Note HV motors are not mentioned - although they could be. "...motors rated in excess of 100 hp..." and "motors located in hazardous (classified) locations" are the big ones in my opinion. Whether the disconnects should be used as controllers or not, people start pulling any switch they can find.Some examples of increased or additional hazards include, but are not limited to, motors rated in excess of 100 hp, multimotor equipment, submersible motors, motors associated with adjustable speed drives, and motors located in hazardous (classified) locations