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After being exposed to more than 10 years of sunlight, this wiring method is ready to be replaced. When installing equipment outdoors, you should pay attention to requirements like the ones shown below.
As noted in the scope of Art. 350, "This article covers the use, installation, and construction specifications for liquidtight flexible metal conduit (LFMC) and associated fittings." The definition for LFMC reads as follows: "A raceway of circular cross section having an outer liquidtight, nonmetallic, sunlight-resistant jacket over an inner flexible metal core with associated couplings, connectors, and fittings for the installation of electric conductors."
Section 350.10 lists where LFMC can be installed and how it shall be protected.
"350.10(1) Where conditions of installation, operation, or maintenance require flexibility or protection from liquids, vapors, or solids
350.10(2) As permitted by 501.10(B), 502.10, 503.10, and 504.20 and in other hazardous (classified) locations where specifically approved, and by 553.7(B)
350.10(3) For direct burial where listed and marked for the purpose"
Section 350.12 outlines where LFMC shall not be used.
"(1) Where subject to physical damage
(2) Where any combination of ambient and conductor temperature produces an operating temperature in excess of that for which the material is approved."