Substation infrared thermography explained: how a longwave IR camera finds hot connections on energized equipment, how NETA Table 100.18 grades delta-T findings, and what NFPA 70B 2023 now requires for annual inspections.
How often to test high-voltage circuit breakers: NETA MTS-2023 intervals for SF6, vacuum, and oil designs, the core tests (contact resistance, insulation, time travel), and how utilities are shifting from time-based to condition-based maintenance.
How SF6 leak imaging works in 2026: cooled IR cameras tuned to 10.55 micrometers, real-world sensitivity limits, and the five-step field workflow our team runs on live 12 kV through 500 kV substation equipment.
How SF6 and methane leak detection differ in 2026: cameras, methods, and field workflow.