NEC 358.30
EMT Support Spacing and Fastening: NEC 358.30, Straps, Hangers, and Strut Clamps
NEC 358.30 EMT support spacing (3 ft from boxes, 10 ft intervals, the two exceptions), rigid/IMC intervals by size, and how to choose between one-hole straps, two-hole straps, conduit hangers, and strut clamps.
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