This Audel classic -- updated to cover the 1996 National Electrical Code RM -- provides complete preparation for Apprentice, Journeyman, and Master electricians' exams.The smaller of the two can be omitted (see NEC, Section 220-21). ... With a density of illumination of 3 watts per square foot for the store and 200 volt- amperes per linear foot for the show- window, calculate: (a) ... (b) the minimum number of branch circuits required and sizes of wire; (c) the minimum size of feeders (or service conductors) required. ... Therefore, a 100-amp service would be used with No.
|Title||:||Questions and Answers for Electrician's Examinations|
|Publisher||:||Audel - 1993-04-09|