T TJK Member Dec 15, 2010 #1 Table 250.122 sizes equip. grds. by overcurrent device. How do you size equip. grd. for motor ciicuit using table 430.52 for overcurrent device?
Table 250.122 sizes equip. grds. by overcurrent device. How do you size equip. grd. for motor ciicuit using table 430.52 for overcurrent device?
augie47 Moderator Staff member Location Tennessee Occupation State Electrical Inspector (Retired) Dec 15, 2010 #2 Take a look at 250.122 (D)
electricman2 Senior Member Location North Carolina Occupation Retired Electrical Contractor Dec 15, 2010 #3 Also note 250.122(A) which points out that in no case is the EGC required to be larger than circuit conductors supplying the equipment.
Also note 250.122(A) which points out that in no case is the EGC required to be larger than circuit conductors supplying the equipment.