Lineman's Reference - URD
Digital Apprentice LLC Education iPhoneiPadiPod touch
Lineman's Reference - URD is a paid Education app for iPhone and iPad by Digital Apprentice LLC. Rated 4.5/5 from 67 ratings. Requires iOS 12.1.
- Rating
- 4.5
- 67 ratings
- Price
- 9.99 USD
- on the App Store
- Size
- 193 MB
- Age 9+
- Updated
- Sep 7
- 2026 · v1.5.0
Screenshots
About Lineman's Reference - URD
Lineman's Reference - URD is the latest app from Digital Apprentice that will teach linemen and apprentices the basics of underground distribution systems. Learn how to: - Isolate bad cable sections - Hipot cable sections - Isolate and change bad pad-mounted transformers - Troubleshoot underground outages - Switch Underground Distribution Loops Primary Training Labs: - Fault Indicators - Cable Isolation - Hipotting - Transformer Isolation Troubleshooting Labs (with optional quizzes): - Beginner (Single Phase) - Intermediate (Single Phase) - Advanced (Three Phase & Single Phase) Devices Labs - Break down and inspect the components of URD equipment: - Single Phase Padmount - Three Phase Padmount - Load-Break Elbows
Ratings & reviews
4.5
67 ratings
What’s new
Version 1.5.0 · Updated September 7, 2026
Bug fixes. • Random Loop Phasing: closing the N.O. on a loop that is IN phase no longer blows your cutouts. Out of phase still does — check your phasing before you close. • Sound, Vibrate, Fault Indicator and Random Loop Phasing settings stick between sessions. • Memory no longer piles up as you move between labs.
App privacy
The developer, Digital Apprentice LLC, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.