At my DC panel, between my PV disconnect and between components on the panel, (charge controller, battery, DC loads, all with appropriate breakers), all runs less than 6 feet, I want to use (L)FMC (Liquid Tight)Flexible Metal Conduit, to meet the NEC 2020 requirement that all inside DC circuits must be in metal raceway/conduit. 690.31.
There is an amperage limit in 348.60 (referring to 250.118) of 20A for FMC, and 60A for LFMC. BUT, I think that is ONLY for when the (L)FMC is used as an equipment grounding conductor (EGC). If I am not using the (L)FMC as an EGC, or am running a separate wire for EGC, am I good to go with running my max 40A charge controller wiring in FMC, or even my AWG 2 battery cables in FMC?
Is my interpretation correct? Thanks.
There is an amperage limit in 348.60 (referring to 250.118) of 20A for FMC, and 60A for LFMC. BUT, I think that is ONLY for when the (L)FMC is used as an equipment grounding conductor (EGC). If I am not using the (L)FMC as an EGC, or am running a separate wire for EGC, am I good to go with running my max 40A charge controller wiring in FMC, or even my AWG 2 battery cables in FMC?
Is my interpretation correct? Thanks.