Drawing

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K.9
Cable/Conduit Beam/Purlin Hangers/Hanging
Systems
Stud Wall Communication/
Low Voltage
Dry Wall Acoustical Miscellaneous Index
Sizing Information
Reference
Codes & Standards
Reference
to a distance of 1.5m (5 ft.).
(3) Where approved, conduit shall not be required to be securely
fastened within 900mm (3 ft.) of the service head for above-the-
roof termination of a mast.
(B) Supports. IMC shall be supported in accordance with one of
the following:
(1) Conduit shall be supported at intervals not exceeding
3m (10 ft.).
(2) The distance between supports for straight runs of conduit
shall be permitted in accordance with Table 344.30 (B)(2), provided
the conduit is made up with threaded couplings and such
supports prevent transmission of stresses to termination where
conduit is de ected between supports.
344.30 Securing and Supporting. RMC shall be installed as a
complete system in accordance with 300.18 and shall be securely
fastened in place and supported in accordance with 344.30 (A)
and (B).
(A) Securely Fastened. RMC shall be securely fastened within
900mm (3 ft.) of each outlet box, junction box, device box, cabinet,
conduit body, or other conduit termination. Fastening shall be
permitted to be increased to a distance of 1.5m (5 ft.) where
structural members do not readily permit fastening within 900mm
(3 ft.). Where approved, conduit shall not be required to be securely
fastened within 900mm (3 ft.) of the service head for above-the-roof
termination of a mast.
(B) Supports. RMC shall be supported in accordance with one of
the following:
(1) Conduit shall be supported at intervals not exceeding
3m (10 ft.).
(2) The distance between supports for straight runs of conduit
shall be permitted in accordance with Table 344.30 (B)(2),
provided the conduit is made up with threaded couplings and
such supports prevent transmission of stresses to termination
where conduit is de ected between supports.
348.30 Securing and Supporting. FMC shall be securely
fastened in place and supported in accordance with 348.30 (A)
and (B).
(A) Securely Fastened. FMC shall be securely fastened in place
by an approved means within 300mm (12 in.) of each box, cabinet,
conduit body, or other conduit termination and shall be supported
and secured at intervals not to exceed 1.4m (4 1⁄2 ft.) .
(B) Supports. Horizontal runs of FMC supported by openings
through framing members at intervals not greater than 1.4m (4 1⁄2
ft.) and securely fastened within 300mm (12 in.) of termination points
shall be permitted.
358.30 Securing and Supporting. EMT shall be installed as a
complete system in accordance with 300.18 and shall be
NFPA 70; National Electric Code; 2011 Revision
(continued)