WI Electrician study guide
WI Electrician · Work through your exam, one topic at a time.
Wisconsin issues electrician credentials through the Department of Safety and Professional Services (DSPS). The A-Z Professions List on the DSPS site names a family of related credentials: Electrician, Registered; Electrical Apprentice, Industrial; Electrical Apprentice, Residential; Journeyman Electrician; Journeyman Electrician, Industrial; Journeyman Electrician, Residential; Master Electrician; Master Electrician, Registered; and Master Electrician, Residential. The WI Electrician study guide has 5 sections and about 1,752 words.
01Electrical Trade Knowledge (Journeyman Electrician)
The journeyman exam rewards a working command of Ohm's law and the power relationships, series/parallel circuit behavior, conductor and overcurrent sizing, grounding and bonding, and safe work practices. You should be able to move fluidly between volts, amps, ohms, and watts, compute voltage drop, and read a panel schedule or one-line diagram without hesitation.
374 words, about 2 min02Electrical Trade Knowledge (Master Electrician)
The master exam assumes journeyman fundamentals and adds design responsibility: service and feeder calculations, load diversity, short-circuit current and interrupting ratings, selective coordination, transformer connections, and plan interpretation. Expect calculation-heavy items and questions about supervising work and interpreting code intent.
341 words, about 2 min03Residential Electrical Trade Knowledge (Residential Journeyman/Master Electrician)
Residential questions center on the specific rules for one- and two-family dwellings: receptacle spacing and placement, small-appliance and laundry circuits, GFCI and AFCI protection, bathroom and kitchen requirements, grounding electrode systems, and the optional dwelling calculation method. Knowing where the code is prescriptive (receptacle spacing) versus performance-based (load calc) matters.
371 words, about 2 min04Electrical Trade Knowledge (Industrial Journeyman Electrician)
Industrial questions emphasize motor circuits, motor control, hazardous locations, grounding and bonding of equipment, transformers, and power distribution. You should be comfortable with motor nameplate data, overload versus short-circuit protection, controller disconnects, and the classification of hazardous (classified) locations.
323 words, about 2 min05Electrical Code and Administrative Rules (SPS 316 Electrical)
SPS 316 adopts and amends the National Electrical Code for Wisconsin. The exam tests both the technical code and the administrative rules: licensing, permits, inspections, scope, and the amendments Wisconsin makes to the national model code.
343 words, about 2 min