Voltly journal
Pass your trade exam.
In-depth guides for apprentices and journey tradies. Real study plans, real exam questions, plain English.
⚡ Daily challenge
Today: 120V vs 208V vs 240V vs 277V vs 480V
6 quick questions on the voltage systems behind every commercial and residential install. Worked explanations + free signup. ~3 min.
Take the challenge →Calculations · 10 min
Voltage Drop Calculations: NEC & BS 7671 Guide
Voltage-drop formulas for apprentices: single-phase 2LIR, three-phase √3LIR, worked examples, and NEC 3%/5% vs BS 7671 limits.
Study plans · 9 min
Pass Electrical Licence Exam First Time (2026)
A step-by-step study plan, common pitfalls and the exact daily rhythm that gets apprentice electricians through the licence exam on the first attempt.
AS/NZS 3000 · 11 min
AS/NZS 3000 Wiring Rules Exam Guide
Clauses, calculations and concepts that turn up most often on the Australian electrical exam — with worked examples and fast-recall tips.
Apprentice · 12 min
Electrical Apprentice Study Guide
Four-year roadmap for electrical apprentices: what to learn each year, how to study while working full-time, and how to walk into your capstone ready.
Fundamentals · 10 min
120V vs 208V vs 240V vs 277V vs 480V Explained
Plain-English guide to the five voltages every electrician meets — where each is used and the √3 wye maths that ties them together.