Arc Flash Labeling Alternative Number 2 – Complex Systems/Multiple Configurations

Jim Phillips discusses the new exception added to the 2018 Edition of NFPA 70E. 130.5(H) Exception No. 2 provides an alternative method for arc flash labeling of complex systems that have many different configurations. What do you put on the label? Worst case? Multiple labels for each case? Neither is an ideal option.  Exception No. 2 provides another option.