Developed a spreadsheet with each power wire listed (other than those limited to the panel), including starting and ending point, wire size, and breaker size.
Assigned a wire number to each wire in the above table, with prefix that denotes circuit general function and suffix that denotes function type and number.
Entered each wire number above into an Avery address label template, entering each number twice and adjusting font size based on wire size. Printed the labels and cut them down to approximate size in preparation for installing them on wires.
Will paste the label onto the wire and then cover with a clear heat shrink tube.
