Is this install code compliant ? I have a 225 kva transformer with secondaries feeding a panel on the same wall about 15 inches away.I came out the top left of the panel with a 8x8 trough 90 , ran trough parallel with the panel down the wall, installed a 4" piece of greenfield about 10 inches long to a 8x8 trough on the floor that goes from the wall to the front of the transformer and then a chase nipple in back trough to the transformer. Does the trough have to be larger. I installed the flex because i have never hard piped into a transformer. I guess I wondering if i have to make the trough on the bottom 24 " wide.(6x4")