EngiLoop https://engiloop.com/ Practical technology and engineering explainers, how-to guides and free calculators that show their working. Clear, accurate and written for readers worldwide. en Sun, 01 Nov 2026 17:23:48 GMT 720 Single-Phase vs Three-Phase Power, Explained Clearly https://engiloop.com/engineering/single-phase-vs-three-phase-power/ https://engiloop.com/engineering/single-phase-vs-three-phase-power/ Sun, 01 Nov 2026 17:23:48 GMT Himanshu Amdavadi Engineering Power systems Electrical fundamentals Motors Why homes get single-phase and factories get three-phase, how 120/240 V split-phase fits in, and the simple math that makes three-phase so efficient. RCD, GFCI, RCBO and AFCI: How Protective Devices Keep You Safe https://engiloop.com/engineering/rcd-gfci-rcbo-afci-explained/ https://engiloop.com/engineering/rcd-gfci-rcbo-afci-explained/ Sun, 01 Nov 2026 17:23:33 GMT Himanshu Amdavadi Engineering Electrical safety Home electrics Standards & codes Breakers protect cables; RCDs and GFCIs protect people; AFCIs and AFDDs protect against fire. How each device works, where codes require it and what its limits are. Excel for Engineers: 9 Habits That Make Calculation Sheets Trustworthy https://engiloop.com/apps-software/excel-habits-for-engineering-calculations/ https://engiloop.com/apps-software/excel-habits-for-engineering-calculations/ Sat, 31 Oct 2026 17:43:51 GMT Himanshu Amdavadi Apps & Software Spreadsheets Engineering software Separate inputs from formulas, carry units, name cells, add checks and record sources: nine habits that make engineering spreadsheets easy to review and hard to break. Earthing, Grounding and Bonding: What Each One Actually Does https://engiloop.com/engineering/earthing-grounding-and-bonding/ https://engiloop.com/engineering/earthing-grounding-and-bonding/ Sat, 31 Oct 2026 17:43:20 GMT Himanshu Amdavadi Engineering Electrical safety Home electrics Standards & codes Grounding (earthing) and bonding are not the same thing. Here is what each one does, how US and UK systems differ, and why both are needed to keep you safe. Voltage Drop Calculator: Formula, Worked Examples and Limits Worldwide https://engiloop.com/calculations/voltage-drop-calculator/ https://engiloop.com/calculations/voltage-drop-calculator/ Sat, 24 Oct 2026 15:27:56 GMT Himanshu Amdavadi Calculations Cable sizing Electrical fundamentals Power systems Cable voltage drop for single-phase, three-phase and DC circuits in sq mm or AWG, with limits from 15 national codes, resistance tables and worked examples.