Residential Electrical Wiring – fundamentals of home electrical systems, wiring methods, and
safety concepts
PP&E - ✔✔Personal Protection & Equipment
OSHA - ✔✔Occupational Safety and Health Administration
AWG - ✔✔American Wire Gauge - determines sizes of conductors
NEC - ✔✔National Electrical Code
OSHA recognizes 4 types of Electrical Injury - ✔✔electrocution
shock
fall - causing one to lose balance or footing
burn - arcflash
arcflash - ✔✔when you touch a grounded wire to a live wire
2 types of overcurrent devices - ✔✔fuse
circuit breaker
continuous load - ✔✔a load where the maximum current is expected to continue for 3 hours
or more
branch circuit - ✔✔the conductors between the final overcurrent device and the outlet(s). the
branch circuit includes the overcurrent device & the outlets.
safety concepts
PP&E - ✔✔Personal Protection & Equipment
OSHA - ✔✔Occupational Safety and Health Administration
AWG - ✔✔American Wire Gauge - determines sizes of conductors
NEC - ✔✔National Electrical Code
OSHA recognizes 4 types of Electrical Injury - ✔✔electrocution
shock
fall - causing one to lose balance or footing
burn - arcflash
arcflash - ✔✔when you touch a grounded wire to a live wire
2 types of overcurrent devices - ✔✔fuse
circuit breaker
continuous load - ✔✔a load where the maximum current is expected to continue for 3 hours
or more
branch circuit - ✔✔the conductors between the final overcurrent device and the outlet(s). the
branch circuit includes the overcurrent device & the outlets.
