Motors

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billdozier

Senior Member
Location
gulf coast
Hey guys I know there is like a six step rule for sizing motors,over current protection and wire size. Can you guys help me find these steps in 2008. I have article numbers for 02 but can't find anything on new article numbers due to changes in 05 and later versions thanks again
 

don_resqcapt19

Moderator
Staff member
Location
Illinois
Occupation
retired electrician
Hey guys I know there is like a six step rule for sizing motors,over current protection and wire size. Can you guys help me find these steps in 2008. I have article numbers for 02 but can't find anything on new article numbers due to changes in 05 and later versions thanks again
What section numbers are you using? I don't think that the section numbers for those rules have changed between the 2002 and 2008 codes.
 

Twoskinsoneman

Senior Member
Location
West Virginia, USA NEC: 2020
Occupation
Facility Senior Electrician
I've always found following the provided outline in 430 to be helpful.
430outline.jpg
 

elohr46

Senior Member
Location
square one
Hey guys I know there is like a six step rule for sizing motors,over current protection and wire size. Can you guys help me find these steps in 2008. I have article numbers for 02 but can't find anything on new article numbers due to changes in 05 and later versions thanks again

I use these articles, assuming combination starter.
430.6
430.110
430.52
430.22
430.32
 
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