A row of lights goes dark during the day’s work.
Learning Track · Module 7: Failure library · Step 50 of 101
| Symptom | Many neighbouring lights go dark together. The cabinet protection may trip. Often near new excavation. |
|---|---|
| Cause | Excavation by another utility or contractor without a locate. |
| Check | Walk the route between the last working and the first dark pole. Look for fresh digging. |
| Fix | Make safe. Joint the cable with a correct kit. Test insulation before you restore. |
| Prevent | Keep accurate cable records on the map. Respond to utility locate requests. Recover the repair cost from the party at fault. |
Sources
- IEC 60364-6 Verification of low-voltage installations
- IEC 61643-11 Surge protective devices
- IEC 60598-2-3 Luminaires for road and street lighting
- Maker installation and maintenance instructions
Changes: 30 October 2026: First publication: guides for Europe, the Middle East, South Asia, and the USA; failure library; tender clause library; comparisons; tools; downloads. See the changelog. Found a mistake? Report it.