Electrical Safety Terminology

I need someone to answer the below terms. Very simple 13 terms I need definitions for them. NOTE: each definition should be briefly cited (from where did you get the definition). The citation should be after the definition not on a sperate page. Just write the book name and page number, or the name of the website. No Wikipedia, only academic sources. USE NFPA 70E book and you can find all the term there if you can access the book. If you can't access the book use any other academic resources that are available online. Keep it simple and clear. I need this as soon as possible.

1) Electrically Safe Working Condition
2) Qualified Person
3) Fuse
4) Grounded
5) Ground-Fault Circuit Interrupter (GFCI)
6) Risk Assessment
7) Circuit Breaker
8) Category IV Rating on texting equipment
9) Category III Rating on texting equipment
10) Category II Rating on texting equipment
11) Category I Rating on texting equipment
12) Simple Lockout/Tagout Procedure
13) Energized Work

What is "Blind Reaching" and why is dangerous?