Articles · Topic
Articles about Electrical
10 articles across 2 sections
Section
Self-Reliance
Home Repair Basics
The home repairs every household encounters. Plumbing, electrical, drywall, weatherization, and knowing the line between DIY and calling a professional.
Home Maintenance Systems
HVAC, plumbing, electrical, and structural maintenance. The seasonal checklist that prevents expensive failures and the judgment for when to call a professional.
Burns & Electrical Injuries: First Aid from Minor to Severe
First aid for burns and electrical injuries, what to do, what to never apply, when to call 911, and why electrical injuries are deceptive even when they look minor.
Charge Controllers and Inverters for Off-Grid Solar
Where array output becomes usable power. Sizing a controller from array watts and bus voltage, why MPPT recovers energy that PWM discards, the cold-morning voltage that sets a controller's rating, and the surge behaviour that decides whether a well pump starts.
Controlling a Hydro System
A hydro turbine cannot be unplugged. Remove the electrical load and it runs away within seconds; close the valve quickly and water hammer can turn 26 psi into 94. How diversion loads resolve both by never interrupting anything, and a precise account of what the electrical code does and does not say about redundant control.
Controlling a Wind System
Why an unloaded rotor runs away rather than coasting to a stop, what a diversion load does, the second independent overspeed protection the electrical code requires, and the three kinds of brake used to stop a machine for service.
Electrical Basics, Fix, Skills
Basic household electrical skills, resetting breakers, GFCI outlets, panel labeling, and safe outlet and switch replacement. Three skill levels with strict thresholds for licensed electrician work.
How Your Vehicle Works, Automotive Basics
Eight systems that keep your vehicle running: engine, lubrication, cooling, transmission, steering, suspension, braking, and electrical. What each system does, how to spot trouble, and when to call a
Wiring, Disconnects and Code
What an off-grid system demands electrically and why the work is licensed. DC arc behaviour, battery fault current and interrupting ratings, voltage drop, disconnects, and the permit and inspection path. Explains the requirements without publishing conductor sizing or installation procedure.