A section goes dark at night with no fault before.
Learning Track · Module 7: Failure library · Step 59 of 101
| Symptom | A section goes dark late at night. Pole doors or pull boxes are open. Solar panels or batteries are missing. |
|---|---|
| Cause | Theft of copper cable, luminaires, nodes, batteries, or panels. |
| Check | Make safe: cut ends may be live. Record what is missing and photograph it. |
| Fix | Replace and secure. Report to the police for the record. |
| Prevent | Security screws, locked doors and pull boxes, aluminium cable where permitted, and alarms on sudden offline events. |
Related across the playbook: Theft and illegal connections: Signs in the data before someone reports it.
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.