Chapter 4 Electrical Prints, Specifi cations, and Codes 51 Copyright Goodheart-Willcox Co., Inc. Chapter 3 provides rules governing wiring methods. Chapter 4 covers cords, cables, fi xtures, fi xture wires, motors, compressors, and battery-operated electric vehicles. The table in Figure 4-13 lists the articles found in these chapters. • Special installations—Chapters 5–7. Chapter 5 is concerned with areas where spark generation by electrical equipment may cause fi re or explosion due to volatile atmosphere or material. Chapter 6 covers electric sign wiring, outline lighting, cranes, hoists, elevators, escalators, and moving sidewalks. It also covers welding machines, sound recording equipment, X-ray equipment, and machine tool wiring. Chapter 7 deals with emergency lighting circuits. See Figure 4-14. • Communications—Chapter 8. This section contains the requirements for communication circuits, radio and television equipment, and antenna distribution systems. See Figure 4-15. 4.3.1 National Electrical Code The National Electrical Code (Code or NEC) gov- erns nearly all electrical construction performed in the United States. No national law requires electrical construction to conform to the Code, but most building codes mandate Code compliance. The fi rst Code was prepared in 1897. In 1911, the Code became more formally organized under the administrative sponsorship of the National Fire Protection Association (NFPA). The present format, set up in 1959, uses article numbers preceding section numbers. A revised edition is issued every three years. Code Content and Arrangement The Code consists of an introduction and nine chapters. These chapters are divided into four sections: • General installations—Chapters 1–4. Chapter 1 defi nes terms you will need to know to understand the Code. Chapter 2 discusses wiring design and protection. Goodheart-Willcox Publisher Figure 4-12. Division 26 of the CSI MasterFormat addresses electrical work. The division is further divided into specifi c sections. MasterFormat Division 26—Electrical 26 00 00 ELECTRICAL 26 01 00 Operation and Maintenance of Electrical Systems 26 05 00 Common Work Results for Electrical 26 06 00 Schedules for Electrical 26 08 00 Commissioning of Electrical Systems 26 09 00 Instrumentation and Control for Electrical Systems 26 10 00 MEDIUM-VOLTAGE ELECTRICAL DISTRIBUTION 26 11 00 Substations 26 12 00 Medium-Voltage Transformers 26 13 00 Medium-Voltage Switchgear 26 15 00 Medium-Voltage Enclosed Bus Assemblies 26 16 00 Medium-Voltage Metering 26 18 00 Medium-Voltage Circuit Protection Devices 26 20 00 LOW-VOLTAGE ELECTRICAL DISTRIBUTION 26 21 00 Low-Voltage Electrical Service Entrance 26 22 00 Low-Voltage Transformers 26 23 00 Low-Voltage Switchgear 26 24 00 Switchboards and Panelboards 26 25 00 Low-Voltage Enclosed Bus Assemblies 26 27 00 Low-Voltage Distribution Equipment 26 28 00 Low-Voltage Circuit Protective Devices 26 29 00 Low-Voltage Controllers 26 30 00 FACILITY ELECTRICAL POWER GENERATING AND STORING EQUIPMENT 26 31 00 Photovoltaic Collectors 26 32 00 Packaged Generator Assemblies 26 33 00 Battery Equipment 26 35 00 Power Filters and Conditioners 26 36 00 Transfer Switches 26 40 00 ELECTRICAL PROTECTION 26 41 00 Facility Lightning Protection 26 43 00 Surge Protective Devices 26 50 00 LIGHTING 26 51 00 Interior Lighting 26 52 00 Safety Lighting 26 54 00 Classifi ed Location Lighting 26 55 00 Special Purpose Lighting 26 56 00 Exterior Lighting