Layout and Arrangement of NEC
Chapter 1—General
Chapter 2—Wiring and Protection
Chapter 3—Wiring Methods and Materials
Chapter 4—Equipment for General Use

These chapters apply generally to all electrical installations

Chapter 5—Special Occupancies
Chapter 6—Special Equipment
Chapter 7—Special Conditions

These chapters can supplement or modify Chapters 1 through 4

Chapter 8—Communications Systems

Chapter 8 is independent and Chapters 1 through 7 only apply where referenced within Chapter 8

Chapter 9—Tables

Applicable as referenced

Appendix A through D

The appendixes are for information only and are notmandatory

Plan of IEC 60364: Electrical Installations of Buildings

Part 1 : Scope, object, and fundamental principles
Chapter 11 - Scope
Chapter 12 - Object
Chapter 13 - Fundamental principles

Part 2 : Definitions
Chapter 21 Guide to general terms

Part 3 : Assessment of general characteristics
Chapter 31 - Purposes, supplies, and structure
Chapter 32 - Classification of external influences
Chapter 33 - Compatibility
Chapter 34 - Maintainability
Chapter 35 - Safety services

Part 4 : Protection for safety
Chapter 41 - Protection against electric shock (protection against direct and indirect contact)
Chapter 42 - Protection against thermal effects (of equipment during normal operation)
Chapter 43 - Protection against overcurrent (for conductors and cables)
Chapter 44 - Protection against overvoltage
Chapter 45 - Protection against undervoltage
Chapter 46 - Isolation and switching
Chapter 47 - Application of protective measures for safety
Chapter 48 - Choice of protective measures as a function of external influences

Part 5 : Selection and erection of electrical equipment
Chapter 51 - Common rules (e.g., principles for selection and erection)
Chapter 52 - Wiring systems
Chapter 53 - Switchgear and controlgear
Chapter 54 - Earthing arrangements and protective conductors (also equipotential bonding conductors)
Chapter 55 - Other equipment
Chapter 56 - Safety services (selection and erection of the equipment for safety services)

Part 6 : Verification
Chapter 61 Initial verification (prior to commissioning of the installation)

Part 7 : Requirements for special installations or locations
NOTE
Part 7 deviates from Parts 1 to 6 in that it is not divided into chapters but into sections, in order to have more than nine sections available for these additional regulations
Section 702 - Swimming pools
Section 703 - Location containing sauna heaters
Section 704 - Construction and demolition site installation
Section 705 - Electrical installations of agricultural and horticultural premises
Section 706 - Restrictive conducting locations
Section 708 - Electrical installations in caravan parks and caravans
Section 709 - Electrical installations in marinas and pleasure craft
Section 710 - Medical locations and associated areas
Section 711 - Electrical installations in exhibitions, shows, stands, and fun fairs
Section 712 - Not allocated
Section 713 - Furniture
Section 714 - External lighting installations

Source:
ELECTRICAL INSTALLATION REQUIREMENTS
A Global Perspective
National Electrical Manufacturers Association
By Underwriters Laboratories Inc.
Principal Investigator: Paul Duks
April 1999