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⚡ Electrical Blog

⚡ Electrical Guides & How-Tos

Every article below solves one real job with real numbers — then hands you to the calculator to run your exact dimensions.

4 guides

🧮 Electrical · Open calculator 📖 All Guides

¿Qué calibre para circuito de 20A?

Cobre 12 AWG en 20A: ampacidad, regla del 80% y cuándo subir.

Caída de tensión en 100 pies: solución

Fórmula 2KIL/CM para 100 pies a 120V, reglas y umbral de 60 pies.

¿Cuántos cables en tubo PVC 3/4"?

Regla del 40%: áreas THHN por calibre, derrateo y cuándo subir.

¿Mi panel 200A está sobrecargado?

Carga actual 80A más circuitos nuevos vs servicio 200A y factores.

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Worked guides grouped by calculator — pick your trade.

🏗️ Concrete 🎨 Painting 🔧 Plumbing 🏠 Flooring 🛖 Roofing 🧱 Masonry ⛏️ Excavation 💡 Ceiling 🪨 Gravel 🏜 Sand 🪜 Stairs ⬜ Drywall 🚧 Fence 🔩 Rebar 🪓 Lumber 🌡 Insulation 🪵 Decking 🟧 Pavers 💨 HVAC 🚰 Water Tank 🐜 Anti-Termite 🪟 Shuttering 🚚 Backfill 🖌 Plastering 💧 Waterproofing 🌿 Landscaping ☀️ Solar Panel 🚽 Septic Tank 🏛 Beam/Column ✂ Tile Cutting 🔨 Wall Framing 📐 Rafter Length 🪚 Board Foot 🧶 Carpet 📜 Wallpaper 🛣️ Asphalt 🍂 Mulch 🪴 Topsoil 🌱 Sod & Turf ⬛ Block Wall