As far as I understand you only ever use the trefoil table if the question specifically uses the word trefoil.
I read this as three cables layed flat touching on a perforated cable tray.
I would think this is another error in the answer key and it slipped by because the values are the same on both tables for that cable.
I read this as three cables layed flat touching on a perforated cable tray.
I would think this is another error in the answer key and it slipped by because the values are the same on both tables for that cable.