Repair capacity is the practical ability to detect a fault, reach damaged infrastructure, and restore it to service. For submarine cables, this depends on trained crews, repair ships, equipment, spare parts, permits, funding, and coordination among operators and authorities.
It matters because a cable’s resilience depends not only on preventing damage, but also on limiting disruption when damage occurs. In a real outage, operators must locate the fault, arrange access to the site, and carry out repairs; remote or difficult conditions can make each step slower. Defenders and infrastructure planners assess repair capacity alongside route diversity and fallback connections, so users can remain connected while repairs are underway.