P128, p166 and other pages. It would be great if you could add a little more detail about which NEMA plugs get used for what. Maybe add a few sentences or a table on P166. On p166 You write "The typical household 110v, 15 amp sockets you're used to are NEMA 1-15…" it would be better to say "the typical household two prong sockets are NEMA 1-15 and the three prong grounded sockets are NEMA 5-15…" add more details for 220v etc.
P128, p166 and other pages. It would be great if you could add a little more detail about which NEMA plugs get used for what. Maybe add a few sentences or a table on P166. On p166 You write "The typical household 110v, 15 amp sockets you're used to are NEMA 1-15…" it would be better to say "the typical household two prong sockets are NEMA 1-15 and the three prong grounded sockets are NEMA 5-15…" add more details for 220v etc.