What are the basics needs for an Electrical Engineer (power and communications) who has to know about field works?

I think that  Classic Control + AutoCad +Electric machinery

I beleive that all the basic needs are included in the academic courses, and they are completed with the trainings.

check these skill https://cdn.ncees.org/wp-content/uploads/2012/11/PE-Ele-POW-Apr-2009-21.pdf

in here NECEES they list the skill required too e known for the person entering their exam. These skill are exppect with 4 years experience  

I am sorry this is out of my specialist