There are two basic types of rules int the NEC; what are they? ✔️✔️Mandatory rules and permissive
rules.
Mandatory rules contain the words_____ ✔️✔️Shall or Shall not, and must be adhered to
Permissive rules identify _____ ✔️✔️Actions that are allowed but not required and typically cover
options or alternative methods.
Permissive rules are indicated by the phrases_____ ✔️✔️shall be permitted or shall not be required.
NEC Chapters 1, 2, 3, and 4 ...... ✔️✔️Present the rules for the design and installation of electrical
systems. They generally apply to all electrical installations.
NEC Chapters 5, 6, and 7 ....... ✔️✔️are concerned with special occupancies, equipment , and
conditions. Rulles in these chapters may modify or amend those in the first four chapters.
NEC Chapter 8 ...... ✔️✔️covers communications systems, such as the telephone and television
receiving equipment.
NEC Chapter 9 ...... ✔️✔️contains tables that are applicable when referenced by other chapters in the
NEC
What word or phrase best describes the NEC requirements for the installation of electrical systems?
✔️✔️Minimum
Mandatory and permissive rules are defined in ____ ✔️✔️NEC article 90
Examples of branch circuit calculations can be found in ______ ✔️✔️NEC Informative Annex D