Caso De Estudio
Páginas: 3 (705 palabras)
Publicado: 11 de julio de 2012
C
n g Edu i u ca n i t Controls and Control Wiring t i o n o
MODULE 1 History and Introduction to the National Electrical Code
n
Produced and written by Gerald Newton
NEC History 101Who and When? 1897!
Various insurance companies in a united effort developed the orignal Code in
Who should learn the NEC?
Anyone requiring installation rules, manufacturing rules, and designrules for electrical installations.
What about the NFPA? 1911!
The National Fire Protection Association started acting as the sponsor of the NEC in
How often is the NEC revised?
The NEC isrevised about every three years.
Is the NEC difficult to learn?
Yes!!!!!! The NEC is not an instruction manual for untrained persons, has a reading level of about 16 years of school, and is extremelycondensed.
How to Read the National Electrical Code
here are specific rules for read ing the National Electrical Code that must be followed when applying the NEC, or interpretations may becomevague and contradictory leading to many arguments.
1 2
Chapters 1 through 4 apply generally except as modified or amended by Chapters 5 through 7. Chapter 8 on communications systems (telephone,telegraph, radio and television equipment, and community antenna systems) is a standalone chapter and is independent of the other chapters except where they are specifically referenced in chapter 8.When a chapter is divided into parts, Part A - General applies to all the other parts which are independent of each other. When sections are referenced always read the title to the section. The sectionrules apply within the scope of the heading or subheading only. Also, exceptions apply only to the subheading which they follow. Article 110, requirements for electrical installations applies to allother articles of the code. Fine print notes, [FPN], are explanations and are not mandatory rules. Mandatory rules are worded with shall. Where the word May is used the authority having...
n g Edu i u ca n i t Controls and Control Wiring t i o n o
MODULE 1 History and Introduction to the National Electrical Code
n
Produced and written by Gerald Newton
NEC History 101Who and When? 1897!
Various insurance companies in a united effort developed the orignal Code in
Who should learn the NEC?
Anyone requiring installation rules, manufacturing rules, and designrules for electrical installations.
What about the NFPA? 1911!
The National Fire Protection Association started acting as the sponsor of the NEC in
How often is the NEC revised?
The NEC isrevised about every three years.
Is the NEC difficult to learn?
Yes!!!!!! The NEC is not an instruction manual for untrained persons, has a reading level of about 16 years of school, and is extremelycondensed.
How to Read the National Electrical Code
here are specific rules for read ing the National Electrical Code that must be followed when applying the NEC, or interpretations may becomevague and contradictory leading to many arguments.
1 2
Chapters 1 through 4 apply generally except as modified or amended by Chapters 5 through 7. Chapter 8 on communications systems (telephone,telegraph, radio and television equipment, and community antenna systems) is a standalone chapter and is independent of the other chapters except where they are specifically referenced in chapter 8.When a chapter is divided into parts, Part A - General applies to all the other parts which are independent of each other. When sections are referenced always read the title to the section. The sectionrules apply within the scope of the heading or subheading only. Also, exceptions apply only to the subheading which they follow. Article 110, requirements for electrical installations applies to allother articles of the code. Fine print notes, [FPN], are explanations and are not mandatory rules. Mandatory rules are worded with shall. Where the word May is used the authority having...
Leer documento completo
Regístrate para leer el documento completo.