ADSS cable jacket damage has many causes — electrical tracking, bird pecking, gunshot, installation abrasion, UV degradation, and clamp wear. Each has a distinct visual signature. Identifying the cause correctly determines whether the fix is a local repair or a span replacement.
6 Causes and Their Signatures
| Cause | Visual Signature | Recommended Action |
|---|---|---|
| Electrical tracking | Irregular holes, blackened edges, dendritic carbon patterns | Replace entire span if tracking is widespread |
| Bird damage | Clean round holes (5-15mm), no discoloration | Local repair + bird diverter installation |
| Gunshot | Round entry/exit holes, possible aramid yarn damage | Replace damaged section (3m minimum) |
| Installation abrasion | Linear scratches, flattened jacket surface | Local repair; review installation procedures |
| UV degradation | Chalky surface, circumferential cracking | Monitor; plan replacement within 3-5 years |
| Clamp wear | Localized crushing or abrasion at clamp points | Replace clamp + damaged cable section |
Related Reading: Tracking vs bird damage · Clamp damage · Common problems
Key Takeaways
- Tracking = span replacement. Bird/installation damage = local repair.
- Always photograph damage before repair — the photo is evidence for warranty claims.
- UV degradation is gradual and uniform; tracking is localized and irregular. Don’t confuse them.
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