Mike Dolt Enterprises
Mike Dolt Enterprises
User: Davisholyoke, Location: New Jersey
Asked on: Sunday, April 3, 2011 at 7:08 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:42 am EDT
Question: I was wondering their is a 4" EMT that goes from a basement 100' then 90s up to 8th floor (over 80')to another 90 elbow and goes another 200' does 300.19 apply on the vertical run. Their are 4 600mcm and a ground in pipe
Yes, 300.19 applies to the vertical run of the 4" EMT.According to 300.19(A), conductors installed in raceways shall not be subject to physical damage. Since the vertical run of the 4" EMT is over 80 feet, it is subject to physical damage due to its length. Therefore, 300.19(A) requires that the conductors be secured within the raceway.The Exception to 300.19(A) for raceways installed underground or embedded in concrete does not apply, since the EMT is not installed underground or embedded in concrete.Therefore, the conductors must be secured within the 4" EMT on the vertical run over 80 feet. Flag for review