Conduit Fill Chart is a reference to check how many maximum conductors of cables can be put in one single size conduit. If cables exceed the maximum of allowed number then they could struggle when first pulling work and higher potential to mechanical damage.
Below is the Conduit Fill Chart for THWN and THHN cable type in EMT, IMC, and GRC of conduit type. The Cart refers to table C of NEC.
Read: Explosion Proof Junction Box, Engineer Shall Understand What It Is.
