Preventing Arc Flash

How do you protect against arcing faults?

Unfortunately, it is impossible at this time to devise an electrical system that is completely "flash-proof", although significant efforts have been made.

However, personnel working on a system can take precautions to help protect themselves from the hazards associated with an arcing fault.

The National Fire Protection Agency (NFPA) requires that before a worker approaches exposed electrical conductors or circuit parts that have not been placed in an electrically safe work condition, a flash analysis must be performed. This analysis is to determine the flash protection boundary and the level of personal protective equipment that the worker must wear.


Complete the Quiz Me activity below.


Figure 1: Use Proper Level of PPE

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What level of PPE is the worker shown in Figure 1 wearing according to NFPA 70E 2015 standards?