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

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🧮 Electrical · Open calculator 📖 All Guides

20A 분기회로 전선 굵기는?

20A 차단기의 12AWG 구리: 허용전류, 80% 연속부하, 업사이징.

100피트 배선 전압강하: 굵게 해결

120V 100피트의 2KIL/CM 공식, 업사이징, 60피트 기준.

3/4인치 PVC관에 몇 가닥?

40% 충전율: 게이지별 THHN 면적, 디레이팅, 관 업사이징.

200A 패널 과부하? 계산으로 확인

기존 80A + 신설 회로 vs 200A, 수요율, 업그레이드 기준.

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🏗️ 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