Cat Fan
Member
- Location
- Phoenix, Az, USA
Table 130.5(C) Estimate of the Likelihood of Occurrence table states, "Operation of a CB or switch the first time after installation or completion of maintenance in the equipment. likelihood yes. Since they added that in 2021 I have seen many different interpretations in the field. Some companies follow it diligently with electricians donning a 40 cal. suite for energizing 20 amp, 120V circuits, low incident energy breakers. Other companies for the higher incident energy, don the suit but for the smaller ones, wear leather protectors and make sure they stand off to the side, and finally the group that ignores it all and just does whatever they want. Was it the intent of NFPA70E team to group all breakers into this regardless to incident energy rating? I am currently working in a building where the distribution panels are energizing and compliance with the statement as written would involve approximately 1000 breakers. There is no exposed bussing for these panels, all dead fronts and panel covers are in place. All panels have incident energy labels installed.