Spark Learn
The Spark learning center
Everything here is written plain and checked against the way the work is actually done. 17 guides, a glossary of 69 terms and seven calculators.
For the person who owns the house
How the Power in Your Home Actually Works
From the pole to the outlet, in the order the power travels.
How to Read Your Own Electrical Panel
What the numbers mean, what a bad panel looks like, and what to leave alone.
GFCI, AFCI and What Keeps Tripping
The three kinds of protection in a modern home and how to tell them apart.
Wire Size, Amps and Why It Matters
Why a 20 amp breaker on thin wire is the most dangerous shortcut in a house.
How to Hire an Electrician Without Getting Burned
Check the license, read the quote, and know which questions get honest answers.
Permits and Inspections in Los Angeles County
What needs a permit, who pulls it, and why unpermitted work costs more later.
Electrical Safety Around the House
The handful of habits that prevent almost every household electrical fire.
Adding a Car Charger, a Heat Pump and an Induction Range
Three big new loads, one panel, and how to fit them without spending twice.
For the person doing the work
Getting into the trade, the certification path, passing the exam and running a shop. 9 guides plus licensing for all fifty states.