Repair of copper cables after a flooded utility chamber
Court-appointed expert report on the source of the water and the repair costs of telephone network infrastructure.
Background
A telecom operator's underground chambers flooded and the copper cables were damaged. The operator claimed repair costs from a third party, and both the source of the water and some invoice items were disputed.
What I was asked
To analyse the technical aspects of the repair, the justification for the internal costs charged and the position of the chambers relative to nearby utility ducts.
How it was analysed
- On-site inspection of the chambers and their surroundings.
- Comparison of levels between chambers and with nearby drinking-water manholes.
- Analysis of the repair work carried out by the contractor.
- Technical justification of the operator's management and supervision costs.
Report findings
Internal management and supervision costs can exceed 10% of external labour and it was correct to include them. Water ducts were also found very close by and at a higher level than the affected chamber.
Key takeaway
In infrastructure damage claims, an on-site inspection provides objective data (levels, distances, ducts) that is often missing from the paperwork.
Related service: Telecommunications expert reports: carriers, networks and services
Anonymised case. Personal data, the parties and procedural references have been omitted or altered to preserve confidentiality.