Lineman's Reference - URD
Digital Apprentice LLC
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About this app
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
What's new
Version 1.5.0 · Sep 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.
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