The program provides a clear explanation of the two approach boundaries used for shock protection, the Limited Approach Boundary and the Restricted Approach Boundary, as well as the approach boundary used for arc flash protection, the Arc-Flash Boundary. The definition of a qualified electrical worker is explained in addition to the knowledge and skills required for a qualified electrical worker to cross the Restricted Approach Boundary. Also included are the restrictions and exceptions for unqualified workers related to the various approach boundaries.
After viewing this program, electrical workers will have an understanding of the incident energy associated with an arc flash and how this is used to establish the Arc Flash Boundary distance and select proper arc-rated clothing and PPE. The importance of wearing arc-rated clothing is visually demonstrated by example and the viewer will learn that flammable or meltable clothing such as polyester will worsen any burn injury.
Electrical workers will also learn the conditions that require an electrically safe work condition to be established as well as the step-by-step process of creating and verifying an electrically safe work condition. In addition, the program describes those limited instances when energized work is allowed as well as the safe work practices and procedures that must be followed when performing work involving electrical hazards. This includes the Energized Electrical Work Permit, job planning and job briefing, the establishment of approach boundaries and the selection of arc-rated clothing and PPE.
To assist electrical workers in selecting the appropriate shock and arc-flash protection, the program explains the information that may be found on equipment hazard labels such as the nominal voltage, the Arc-Flash PPE Hazard Category and the incident energy at the working distance. The appropriate arc-rated PPE for each hazard category is also explained. In addition, to assist electrical workers in understanding how approach boundary distances and appropriate PPE are determined, the program explains and references the appropriate look-up tables contained in the regulation.