2023 NEC Changes: Feeders, Load Calculations, and Services

By the end of this course, you will be able to: 

• Recall when barriers are required for feeder supplied equipment in 215.5 
• Discuss the surge protection requirements in 215.18 and 225.42 
• Explain the new reorganization of Article 220 
• Discuss how square footage must be included for load calculations in 220.5 
• Recognize the revised calculations for schools and sports arenas in table 220.42 
• Identify the restricted use of demand factors in 220.53 for dwelling unit appliances 
• Recognize the new load calculations for electric vehicle supply equipment in 220.57 
• Explain the clarification to the noncoincident load allowances of 220.60 
• Recall the new allowances for energy management systems in 220.70 
• List the new demand factors for hospitals in section 220.110 
• Discuss the separation requirements of 230.7 
• Recall the sealing requirements of 230.8 and 225.27 for raceways 
• Explain the revised clearance requirement in 230.24 
• List the permitted wiring methods in 230.30 and 230.43 for service conductors 
• Discuss the requirements for barriers in the service equipment in 230.62 
• List the locations where 230.67 requires surge protection 
• State the changes for the multiple disconnecting means allowed in 230.71 
• Recall the marking requirements in 230.75 for neutral disconnect links in switchgear or switchboards 
• Discuss the emergency disconnect requirements in 230.85 and 225.41 for dwellings 
• Recall the scope of the new Article 235