Thanks for the info. In this particular case, it is for multi-sets of 500Kcmil conductors in the chiller starters made by a well-known chiller manufacture. The wire bending space inside the starter is well allocated per NEC; however, shape 90-degree bendings(done by mechinary tool)on THHW...
NEC requires conduit bending radius to be ~6X of conduit diameter. I could not find any bending raduis requirement in NEC for cable/wire rated for 600V and under. Is there any code requirement/recommendation (i.e. NEC, IEEE, UL listing)for 600V, insulated, non-armored type, cable/wire bending...
