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