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Category: Electrician careers, career change & licensing

NEC 440 Part VII Room Air Conditioners for the Journeyman Exam: The 80 and 50 Percent Rules, Cord Length and the Plug as Disconnect

2026 NEC 440.60 to 440.65 room air conditioners: branch-circuit 80 and 50 percent limits, plug as disconnect, cord length, and leakage-current detection.

Updated 2026-10-15 · Read the article ›

NEC 310.10(G) Parallel Conductors for the Journeyman Exam: The 1/0 Minimum, Matching Sets and Sizing Large Feeders

2026 NEC 310.10(G) parallel conductors: 1/0 AWG minimum, what each set must match, ampacity adjustment, and 240.4 sizing above and below 800 A.

Updated 2026-10-15 · Read the article ›

NEC 250.146 and 250.148 for the Journeyman Exam: Grounding Receptacles and Boxes, and Replacing Two-Prong Outlets

2026 NEC 250.146 and 250.148: bonding receptacles to boxes, self-grounding devices, isolated ground, EGC splices, and two-prong replacement options.

Updated 2026-10-15 · Read the article ›

NEC 250.110 to 250.119 for the Journeyman Exam: Which Equipment Must Be Grounded and How to Identify the Grounding Conductor

2026 NEC 250.110 to 250.119: when fixed and cord-connected equipment must be grounded, double-insulated tools, and green, bare and reidentified EGCs.

Updated 2026-10-15 · Read the article ›

NEC Article 240 Fuses and Circuit Breakers for the Journeyman Exam: Plug Fuses, Type S, Interrupting Ratings and Slash-Rated Breakers

2026 NEC Article 240 fuses and breakers: plug fuse limits, Edison base and Type S, cartridge fuses, interrupting ratings, slash ratings and series ratings.

Updated 2026-10-15 · Read the article ›

NEC Article 230 Underground Service Conductors and Service-Entrance Conductors for the Journeyman Exam: Size, Wiring Methods and Protection

2026 NEC Article 230 underground service and service-entrance conductors: minimum size, one set per service, approved wiring methods, protection and support.

Updated 2026-10-15 · Read the article ›

NEC 210.4 Multiwire Branch Circuits for the Journeyman Exam: Shared Neutral Current, Handle Ties and Grouping

2026 NEC 210.4 multiwire branch circuits: shared neutral current math, simultaneous disconnect, handle ties, line-to-neutral loads and grouping.

Updated 2026-10-15 · Read the article ›

NEC 680 Spas, Hot Tubs and Fountains for the Journeyman Exam: Emergency Switch, Indoor Distances, GFCI and Bonding

2026 NEC 680.40 to 680.54: spa emergency switch, outdoor and indoor hot tub rules, receptacle and luminaire distances, GFCI, and fountains.

Updated 2026-10-15 · Read the article ›

NEC 230.24 for the Journeyman Exam: Overhead Service Clearances, Point of Attachment and Service Masts

2026 NEC 230.9, 230.24 and 230.26 to 230.29: clearances over roofs and grade, distance from windows, point of attachment height, service masts and drip loops.

Updated 2026-10-15 · Read the article ›

NEC 300.25 Ducts and Plenums for the Journeyman Exam: Firestopping, Ceiling Support and Air-Handling Spaces

2026 NEC 300.13, 300.22, 300.23 and 300.25: support above suspended ceilings, induced currents, firestopping, and wiring in ducts and plenums.

Updated 2026-10-15 · Read the article ›
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Not a licensed Professional Engineer in Texas or any U.S. state. Does not offer engineering services. Exam-prep education only.