General Civil Engineer: What courses should I take to learn power distribution and electrical wiring

Hi All,I am new to this forum. I am a registered civil engineer, and I would like to take some courses to learn electrical power distribution for my smaller projects with relatively simple electrical needs.  Looking for advice on the courses I should start with that are practical for my needs.  I have a basic understanding from an introductory electrical engineering course, but I would like to understand how to size and design for the various types of electrical service (i.e. 3phase, 4wire, 2 wire loop, etc.).  I would also need to prepare basic site plans and wiring diagrams for easier projects.  For larger projects, I would hire a consultant.
I have researched the different electrical courses, but I am hoping for advice on the most practical courses (and least amount) I can take in the most logical sequencing.  For example, small electronics would not be practical for me to take for the work I am doing. 
Thank you for your suggestions.

helloi am suzanne, you can subscribe to this website :https://www.electricaltechnology.org/2013/09/electrical-wiring.htmlit helps me a lot  as an electrical engineer.i also recently found this great course on udemy: https://www.udemy.com/learn-electrical-wiring-for-houses-and-buildings-415-v-220v/hope it helps.

Wiring harness and Cabling Design is the course offered for electrical design..And if you are looking for Online courses then  CAD/CAM are the best Online electrical Design courses..Hope this will helps you.All the best