Power Cable Sections With Different Temperature Qualification

The patent applies local quality by allowing different cable sections to have different highest allowed conductor temperatures based on their local conditions. Sections with hotspots (higher thermal resistivity, external heat sources, deeper burial) are qualified for higher temperatures than sections without these conditions. This enables each section to operate at its local capacity rather than being constrained by the most restrictive section, thereby increasing overall cable system capacity.

The patent changes the temperature parameter qualification for different cable sections based on their thermal conditions. Instead of implementing physical cooling measures or thermal backfill, the solution modifies the operational temperature parameters allowed for each section. Sections with hotspots are qualified for higher temperatures, eliminating the need for expensive cooling infrastructure or thermal management materials while maintaining safe operation.

The patent applies local quality by segmenting the cable system into sections with different temperature qualifications. Rather than increasing the overall cable size to accommodate the most restrictive section, each section is qualified according to its local thermal conditions. This allows the use of smaller, more cost-effective cable sizes in sections without hotspots while maintaining appropriate temperature management where needed.