Ordinance 531-78 - Laserfiche WebLink

• • . : • • 1 • 1 Section 44. That Section 230-71 of the National Electrical Code, 1978 Edition, 2 as herein adopted, be and is hereby amended by adding a new Subsection "C": 3 4 "All main service panels supplying electric furnaces shall be main breaker type." 5 Section 45. That Section 310-5 of the National Electrical Code, 1978 Edition, 6 be and is hereby amended to read as follows: 7 "MINIMUM SIZE CONDUCTORS": 8 a. Commercial-Industrial Buildings: Whether solid or stranded, 9 conductors shall not be smaller than No. 12 copper or No. 10 aluminum or copper clad aluminum. 10 "Exception No. 1": For flexible cords as permitted by Section 400-12. 11 "Exception No. 2": For fixture wire as permitted by Section 410-23. 12 "Exception No. 3": For fractional hp motors as permitted by Section 430- 13 22. 14 "Exception No. 4": For cranes and hoists as permitted by Section 610-14. 15 "Exception No. 5": For elevator control and signaling circuits as permitted by Section 620-12. 16 "Exception No. 6": For Class 1, Class 2 and Class 3 circuits as permitted 17 by Sections 725-16, 725-37, and 725-40. 18 "Exception No. 7": For fire protective signaling circuits as permitted by Sections 760-16, 760-27, and 760-30. 19 b. Residential: Whether solid or stranded, conductors shall not be 20 smaller than No. 14 copper or No. 12 aluminum or copper clad aluminum. 21 "Exception No. 1": For flexible cords as permitted by Section 400-12. 22 "Exception No. 2": For fixture wire as permitted by Section 410-23. 23 "Exception No. 3": For fractional hp motors as permitted by Section 430- 22. 24 "Exception No. 4": For cranes and hoists as permitted by Section 610-14. 25 "Exception No. 5": For elevator control and signaling circuits as 26 permitted by Section 620-12. 27 "Exception No. 6": For Class 1, Class 2, and Class 3 circuits as permitted by Sections 725-16, 725-37, and 725-40. 28 "Exception No. 7": For fire protective signaling circuits as permitted by 29 Sections 760-16, 760-27, and 760-30. 30 31 32 - 43 -