Safety, Code Administration, and Permit/Inspection Requirements
What you must understand
Candidates must know the electrical safety fundamentals: lockout/tagout, personal protective equipment, arc-flash awareness, approach boundaries, and safe work practices. Understand the code administration process: permits, plan review, inspections, and the authority having jurisdiction. Know how to read and apply the adopted electrical code and how local amendments affect it. Recognize the inspection sequence (rough-in, final) and what inspectors look for at each stage. Understand the roles of the contractor, the journeyman, and the apprentice on the job site.
Traps
Questions often test who may obtain a permit and when a permit is required versus when it is not. Another trap is confusing the roles of the AHJ and the contractor. Safety questions frequently test the hierarchy of controls and the requirement to de-energize before working. Watch for inspection questions where the answer depends on whether the work is concealed or complete.
Rule of thumb and worked example
Rule of thumb: de-energize, verify, and lock out before working on any circuit. Example: before replacing a panelboard, the electrician must open the upstream disconnect, apply a lock and tag, verify the absence of voltage with a tester rated for the voltage, and use appropriate PPE. If the circuit cannot be de-energized, the work requires energized-work procedures and additional PPE.