60 Modern Commercial Wiring Copyright Goodheart-Willcox Co., Inc. Copyright Goodheart-Willcox Co., Inc. Apply and Analyze 1. What is the intention of building codes? 2. How often is a revised, updated edition of the Code issued? 3. Briefl y defi ne the terms labeled and listed as they pertain to electrical equipment, devices, and materials. 4. Compare the terms shall and should, as used in the Code. Critical Thinking 1. Determine what offi cials in your area are the “authority having jurisdiction” for approval of equipment, materials, and procedures used in electrical installations. 2. Explain how reviewing framing prints would help you, as an electrician, plan your work. Know the Code Refer to the National Electrical Code to answer the following questions. 1. Use the contents of the Code to determine which article in Chapter 5 contains information regarding the installation of electrical systems at state fairs. 2. How many exceptions follow Section 725.46? 3. Use the index of the Code to determine which articles contain information regarding bowling alleys. 4. Use the contents of the Code to determine which article in Chapter 4 contains information regarding the installation of lamp holders. 5. What does the informational note following Section 430.61 reference? 6. Use the index of the Code to determine which section contains the minimum sizes of overhead service conductors. 7. Which article contains defi nitions of the terms used throughout the Code? 8. Part 5 of subheading (A) of Section 210.8 [referred to as Section 210.8(A)(5)] states that ground-fault circuit-interrupters are required for receptacles in unfi nished basements. The exception allows a receptacle to be excluded from this requirement. What types of receptacles are excluded? 9. Use the index of the Code to determine which section contains the defi nition of neon tubing. 10. According to the exception to Section 550.17(A), what type of mobile home devices do not need to be subjected to a dielectric strength test?