MI Journeyman Electrician case studies
MI Journeyman Electrician · Put your knowledge to work in context.
The Michigan Journeyman Electrician credential is a skilled-trades license administered through the Michigan Department of Licensing and Regulatory Affairs (LARA) and its Bureau of Construction Codes. Applications, renewals, license lookups, and complaints are handled through LARA's online licensing portals rather than through a separate electrical board website. The MI Journeyman Electrician case studies are 5 cases and about 4,716 words.
1Panelboard Working Space and Dedicated Space in a Remodeled Mechanical Room
A restaurant remodel installs a new 400 A, 208Y/120 V, 42-space panelboard in a 12 ft by 14 ft mechanical room. The enclosure is 36 in wide and 39 in tall, mounted with its bottom 30 in above the finished floor (top at 69 in) on a wall with a plain gypsum board surface opposite, 4 ft 2 in away.
843 words, about 4 min2Service Capacity for a Heat Pump and EV Charger Addition
A 2,400 sq ft single-family dwelling has a 200 A, 120/240 V single-phase service with 4/0 Al service-entrance conductors and a 200 A panel with six open spaces. The owner adds a 48 A (11.52 kW) hardwired EVSE in the garage and replaces a gas furnace with a heat pump: outdoor unit nameplate 4,800 VA, plus 15 kW of electric auxiliary heat.
903 words, about 5 min3Detached Garage Feeder: Ampacity, Burial Depth, and Protection
A 100 A feeder leaves a 200 A dwelling panel and runs to a detached garage. Route: 130 ft of 1-1/2 in PVC Schedule 40 buried 12 in deep across the lawn, 40 ft of EMT through an attic that reaches 130 F in summer, then a riser down the inside of the garage wall with no expansion fitting.
936 words, about 5 min4Replacement Rooftop Unit on an Undersized-Looking Existing Circuit
A three-ton rooftop package unit is replaced with a larger unit. Nameplate: MCA 41.2 A, MOCP 60 A, compressor RLA 28 A, LRA 145 A, fan FLA 2.2 A, 208/230 V single-phase.
930 words, about 5 min5Plastic Water Service and a Detached Shop With Voltage on the Enclosure
A 200 A, 120/240 V single-phase service on a house is fed with 4/0 Al service-entrance conductors. The grounding electrode conductor is 6 AWG copper clamped to the copper water service pipe at the point of entry; the pipe ran 60 ft underground to the main and there was no bonding jumper around the meter.
1,104 words, about 6 min