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Description
Power Checker is a field utility that combines a voltage-drop calculator with a NEMA/IEC plug quick reference.
From conductor data, run length, and load, it computes ΔV, drop rate, terminal voltage, return loop resistance (DC), adopted conductor temperature, and recommended cross-section (mm²) in real time. It also shows GOOD / CAUTION / NG ratings with one-line explanations, likely causes, improvement suggestions, and risk notes.
The plug reference lets you verify representative NEMA (5/6, L5/L6) and IEC (C5/6/7/8/13/14/15/16/19/20/21/22) models via cards and search.
Features — Voltage Drop (Calculate)
Inputs: conductor cross-section (mm²), material (Cu/Al), insulation (PVC70/XLPE90/PVC105), ambient temp (°C), run length (m), supply voltage (V)
load current (A) or load power (W), circuit type (DC / single-phase 2-wire / three-phase 3-wire), power factor (PF), reactance use and X (Ω/km), allowable drop (%), optional conductor temperature (°C)
Outputs (real time): ΔV, drop %, terminal V, loop R (DC), adopted conductor temp, recommended cross-section (mm²)
Evaluation: GOOD / CAUTION / NG badges with short explanation, likely causes, improvement ideas, and risk notes
Behavior: debounced auto-calculation; clear warnings for large drop, temperature overrun, or low terminal voltage
Features — Plug Quick Reference (Plugs)
Card list of representative NEMA (5/6, L5/L6) and IEC (C5/6/7/8/13/14/15/16/19/20/21/22)
Local images shown in parallel (P = plug, R = receptacle) to confirm model, voltage, current, and connection class
Cross-model search bar
Quick tables, abbreviation guide, and credits/license info
Common / UI
Language switch (JA/EN) in the header
Clear, mobile- and web-friendly UI (Expo Router + React Native Web)
Error handling and fallbacks (e.g., image load failures)
Use Cases
On-site checks for allowable drop and terminal voltage
Estimating conductor size candidates for comparison
Fast verification of NEMA/IEC plug models for documentation and communication
Notes
This app is a design aid. Final decisions must follow applicable laws/regulations and standards (IEC/NEMA/JIS, etc.) and your internal policies. Actual values vary with wiring method, environment, temperature rise, cable bundling, and reactance settings.
Information
Developer
Categories
Version
1.0
Size
25.5 MB
Game Center
No
VPP Device Licensing
Yes
Rating
Rated: 4+
Compatibility
iOS 15.1 or later
Devices
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3rd generation), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17, iPhone 17Pro, iPhone 17ProMax, iPhone Air, iPad (5th Generation) Wi-Fi, iPad (5th Generation) Wi-Fi + Cellular, iPad (6th generation) Wi-Fi, iPad (6th generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9.7-inch), iPad Pro (9.7-inch) (Cellular), iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad Pro (10.5-inch), iPad Pro (10.5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (3rd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5th Generation), iPad mini (5th Generation) Wi-Fi + Cellular, iPad (7th generation) Wi-Fi + Cellular, iPad Pro 11-inch (2nd generation), iPad Pro 11-inch (2nd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (4th generation), iPad Pro 12.9-inch (4th generation) Wi-Fi + Cellular, iPad Air (4th Generation) (Wi-Fi), iPad Air (4th Generation) (Wi-Fi + Cellular), iPad (8th generation) Wi-Fi, iPad (8th generation) Wi-Fi + Cellular, iPad Pro 11-inch (3rd generation), iPad Pro 11-inch (3rd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (5th Generation), iPad Pro 12.9-inch (5th Generation) Wi-Fi + Cellular, iPad (9th Generation), iPad (9th Generation) Wi-Fi + Cellular, iPad mini (6th Generation), iPad mini (6th Generation) Wi-Fi + Cellular, iPad Air (5th generation), iPad Air (5th generation) Wi-Fi + Cellular, iPad Pro 11-inch (4th generation), iPad Pro 11-inch (4th generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (6th generation), iPad Pro 12.9-inch (6th generation) Wi-Fi + Cellular, iPad (10th generation), iPad (10th generation) Wi-Fi + Cellular, iPad Air 11-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi + Cellular, iPad Pro 11-inch (M4) Wi-Fi, iPad Pro 11-inch (M4) Wi-Fi + Cellular, iPad Pro 13-inch (M4) Wi-Fi, iPad Pro 13-inch (M4) Wi-Fi + Cellular, iPad mini (A17 Pro) Wi-Fi, iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16) Wi-Fi, iPad (A16) Wi-Fi + Cellular, iPad Air 11-inch (M3) Wi-Fi, iPad Air 11-inch (M3) Wi-Fi + Cellular, iPad Air 13-inch (M3) Wi-Fi, iPad Air 13-inch (M3) Wi-Fi + Cellular, iPad Pro11M5, iPad Pro11M5Cellular, iPad Pro13M5, iPad Pro13M5Cellular, iPod touch (6th Generation), iPod touch (7th generation)
Languages
English
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