Safe Distances from Electrical Hazards: (NFPA 70E) The first and most important thing to consider when being around electrical systems is to determine if a hazard is present. There are two major hazards associated with electrical systems : - Arc Flash. - Electric Shock. There are two major shock boundaries when qualified people are working on or near exposed energized equipment : - Limited Approach Boundary (LAB): identified as the “distance from an exposed energized electrical conductor or circ