Electrician Exam Blog
Study guides, NEC code breakdowns, and exam tips to help you pass the Texas journeyman electrician exam on the first try.
Every article is written by people who took the test, not by an SEO factory. We focus on the NEC articles that show up most on the PSI exam, the calculations students fail most often, and the Texas-specific paperwork that trips up first-time applicants. Posts run long because the exam covers a lot of ground - skim what you need, save the rest for your next study session.
What we cover
- NEC code articles broken down by exam frequency
- Calculation walkthroughs (load, voltage drop, conductor sizing, motors)
- Texas-specific licensing, application steps, and PSI exam logistics
- Study plans for first-timers and retakers
- Codebook tabbing and the open-book exam strategy
All posts
How to Calculate Voltage Drop: NEC Method, Formulas + Free Calculator
Calculate voltage drop with the NEC formula: VD = (2 × K × I × D) ÷ CM. Works for single-phase and three-phase. Free calculator + 5 worked examples.
Texas Electrician License: Requirements, Cost & Application Steps
Need a Texas electrician license? You need 8,000 hours, a TDLR application, and a passing exam score. See the full steps, fees, and timeline here.
Motor Calculations for the NEC Exam: FLC, Conductor, and OCP Sizing
Step-by-step guide to motor calculations for the journeyman electrician exam. Covers FLC tables, conductor sizing, overcurrent protection, and overload sizing.
I Failed the Texas Electrician Exam - Here's My Study Plan to Pass
Failed the Texas journeyman electrician exam? You are not alone. Here is a concrete 6-week study plan to pass on your next attempt.
NEC Article 250 Study Guide — Grounding & Bonding for the Exam
Confused by grounding vs bonding? This visual guide breaks down GEC sizing, EGC sizing, and electrode systems so you pass the exam. Free 2026 study guide.
Load Calculations for the Journeyman Electrician Exam (Step-by-Step)
Master dwelling unit load calculations for the journeyman electrician exam. Step-by-step walkthrough of NEC Article 220 with examples and demand factors.
NEC Table 310.16 Explained: Conductor Sizing Made Simple [2026 Guide]
How do you size conductors with Table 310.16? Start with ampacity, apply correction factors, then check terminal ratings. Full walkthrough with examples.
How to Tab Your NEC Codebook for the Texas Electrician Exam
Step-by-step guide to tabbing your NEC codebook for the Texas journeyman exam. Includes which sections to tab, color coding, and speed navigation tips.
Conduit Fill Calculator: NEC Chapter 9 Rules + Free Tool
How much can you fill a conduit? NEC allows 40% fill for 3+ wires. Use Chapter 9 Tables 4 and 5 to calculate — or try our free conduit fill calculator.
Electrical Wire Sizing: NEC Table 310.16 + Free Calculator
What size wire do you need? Start with the load amps, check Table 310.16, apply derating, then verify voltage drop. Free wire size calculator inside.
HP to Amps Conversion: Formula, Chart + Free Calculator
Convert horsepower to amps with the formula I = (HP × 746) ÷ (V × Eff × PF). Includes NEC FLC tables, conversion chart, and free HP to amps calculator.
NEC 2023 vs 2026: Every Change That Affects Your Texas Exam
Texas switches to the 2026 NEC on September 1. Here are the biggest changes to articles, tables, and calculations that will show up on your exam.
Ohm's Law for Electricians: Formulas, Examples + Free Calculator
What is Ohm's Law? V = I × R. Enter any two values to solve the rest. Full formula wheel, worked exam examples, and free calculator for electricians.
Transformer Sizing Guide: Calculations, NEC Rules + Free Calculator
How do you size a transformer? Calculate kVA from the load, then size OCPD per NEC 450.3(B). Step-by-step guide with worked examples and free calculator.
Free Journeyman Electrician Practice Test (Texas, NEC 2026)
Take a free journeyman electrician practice test with NEC 2026 questions, category breakdowns, and full explanations. No signup required to start.
Texas Electrician Exam Calculations: The Complete Breakdown
Master every calculation type on the Texas journeyman electrician exam. Step-by-step examples for conductor sizing, load calcs, voltage drop, and more.
10 NEC Articles That Appear on Every Texas Journeyman Exam
The 10 most tested NEC articles on the Texas journeyman electrician exam. Know what to study, where to find it, and how each article is tested.
How to Study for the NEW 2-Part Texas Journeyman Electrician Exam
A proven study plan for the new 2-part Texas journeyman electrician exam. Covers NEC Knowledge, Calculations, study timelines, and the best resources.
Frequently asked questions
- Who is this blog written for?
- Apprentices and journeyman candidates studying for the Texas journeyman electrician exam, plus working electricians who want a refresher on NEC articles and calculations. Most articles also apply to journeyman exams in other PSI-administered states.
- Is the content based on the current NEC?
- Yes. Articles use the 2023 National Electrical Code, the version Texas adopted on November 1, 2023. Where the upcoming NEC 2026 changes a rule, we call it out so you can study the right answer for your exam date.
- Are the practice questions in these posts on the real exam?
- No. We do not republish PSI exam questions - that would violate exam confidentiality and would not help you learn. Practice questions in posts are written by us to mirror the format, difficulty, and NEC sections the actual exam covers.
- How often is the blog updated?
- New posts go up as we add NEC topics and answer common student questions. Existing posts are revised whenever Texas adopts a new code cycle, the PSI exam format changes, or readers flag something out of date.