So here scenario. Have 277/480V temp switchboard that we are to pull power from. Have about (35) 100W temp fixtures that will be fed with 277V. The fixtures are in a long corridor. The first fixture is about 500’ form the temp switchboard and the last about 1000’ away. I would like to install a 277/480 panelboard fed from the temp switchboard to feed the lights along with some other 277V welders in the area of the lighting. I don’t think it makes sense to mount the branch panelboard near the temp switchboard as doing voltage drop calcs I would need more than #’8’s to feed the lights all the way. Maybe I should mount/figure the panelboard closer in the area of the light fixture and run a 277/480v temp feeder from the temp switchboard to the branch panelboard…say about 500’ away. Does this make sense? Thanks a lot for any feedback.