![]() Thermostat Wire: Used in heating and A/C systems. Wire sizes of 16 mm 2 cross-sectional area (CSA) are available with the outer sheath covering the cores. ![]() MC Cable: Metal clad cable is heavily used in commercial work, for running through concrete or other commercial environments. two NM-B cables) because 2 'wires' are allowed. This is particularly punishing when there are 2 'wires' (i.e. The restriction is that it takes a mighty bite out of conduit fill, because the NM-B cable must be treated the same as a round conductor of the wide dimension. It’s often used for lighting and outlet circuits. It is permissible to run the entire, jacketed NM-B cable through the conduit.
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