Installation, Maintenance, Inspection, and Safety
Domain 6 - Installation, Maintenance, Inspection, and Safety
This domain tests field execution and worker protection: temporary traffic control, lockout/tagout, fall protection, testing, and the inspection items that predict failures.
Core rules
- Work in or near traffic requires a MUTCD Part 6 temporary traffic control setup; PPE, high-visibility apparel, and a spotter are common requirements.
- De-energize, lock out, tag out, and verify absence of voltage before servicing. Bucket-truck work requires fall protection and stability checks.
- Inspect anchor bolts, grout, pole verticality, handhole covers, luminaire security, lens condition, and corrosion. Torque terminations to the manufacturer’s values.
- Test insulation resistance with a megohmmeter before energizing; verify grounding and polarity. Clean lenses and luminaires on schedule; LED luminaires still need thermal-path and surge inspections.
- Keep records of photometric measurements and maintenance so degradation can be distinguished from a design defect.
Worked example
An inspection finds a pole with cracked grout, a missing handhole cover, and corroded anchor nuts. The correct reasoning is not “replace the luminaire.” The defects affect the structural and electrical enclosure: moisture entry and corrosion can reduce anchor capacity. The action is to barricade or flag the pole, perform a structural and electrical inspection, replace hardware to specification, and recheck torque and grounding before return to service.
Traps that cost marks
Treating LED as maintenance-free, working without verified LOTO, replacing breakaway hardware with rigid bolts, ignoring water intrusion at handholes, and documenting only the luminaire while missing support and foundation defects.