- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
The question is based on the use of tie wraps. Art. 330.30 allows tie wraps for MC cable. The nec also allows it for other cables like AC etc. I don't see it specifically mentioned for LFMC. So how does one support a piece of LFMC from a disconnect to a heat pump or an ac unit if tie wraps are not allowed? This was asked of me by a member. I use tie wraps all the time and tie it to the refrigerant lines-- never been an issue and of, course, I use the black wraps that are rated sunlight resistant
330.30 Securing and Supporting.
(A) General. Type MC cable shall be supported and secured
by staples, cable ties, straps, hangers, or similar fittings
or other approved means designed and installed so as
not to damage the cable.
350.30(A) Securely Fastened. LFMC shall be securely fastened
in place by an approved means within 300 mm (12 in.) of
each box, cabinet, conduit body, or other conduit termination
and shall be supported and secured at intervals not to
exceed 1.4 m (41?2 ft).