admin 84Subscribers View Profile About Discussions Reaction score: 78 Subscribe #29 22:27 Annual Subscription Program 92% 0 ElectricalExclusive VideosNational Electrical Code6 months ago NEC 220.86 Optional Method School Calculation Welcome to our in-depth tutorial on how to perform service and load calculations for a school using the optional method as outlined i... 0 comments 1.4K views