Branch Circuits & WiringQuestion 140 of 521
Along its length, liquidtight flexible metal conduit (LFMC) must be supported at intervals not exceeding what distance?
a.4.5 ft
b.6 ft
c.8 ft
d.10 ft
Explanation
Section 350.30(A) requires LFMC to be supported at intervals not exceeding 4.5 ft (1.4 m) along the run, in addition to fastening within 12 in of boxes. 6, 8, and 10 ft all exceed the maximum support spacing for this flexible raceway.
Law Reference: 2023 NEC §350.30(B)Practice all 521 questions free — no signup required.
Related questions on this topic
- After the required fastening near boxes, EMT must be supported at intervals not exceeding what distance?
- Between pull points (for example, from box to box), the total number of bends in one run of EMT must not exceed the equivalent of how many degrees?
- Liquidtight flexible metal conduit (LFMC) must be securely fastened within what distance of each box, cabinet, or fitting where the conduit is not fished?
- Rigid metal conduit (RMC) must be securely fastened within what distance of each outlet box, junction box, or termination?
- For 1/2-inch through 3/4-inch trade size rigid metal conduit (RMC), what is the maximum spacing between supports on a straight horizontal run per Table 344.30(B)?
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