ECN Forum Forums Code Related Discussion NEC & other Code issues Common Practice When to Use LFMC, LFNC

348.10 FMC does not speak specifically to being used in situations requiring flexibility. Therefore it is allowed to be connected to equipment that does not necessarily move or vibrate. From that, I would conclude that LFMC, although designed to withstand some movement and vibration, does not require such an environment for it's use.