ITC Thermographer Level III case studies
ITC Thermographer Level III · Put your knowledge to work in context.
The ITC Level III Thermographer certification is the program-management tier of the Infrared Training Center's thermography certification ladder, positioned above Level I and Level II. The ITC describes it as the route by which a thermographer becomes their company's thermography program manager. The ITC Thermographer Level III case studies are 5 cases and about 3,450 words.
1Low-Emissivity Busbar Anomaly in a 13.8 kV Substation
A Level III reviews an electrical survey at a 13.8 kV substation. A technician imaged bare copper busbar connections with the camera emissivity set to 0.95 and reported a 47 °C apparent temperature rise on one phase relative to the other two.
743 words, about 4 min2Setting Severity Criteria for 480 V MCC Buckets
A plant is formalizing its electrical thermography program. A contractor surveys 480 V MCC buckets at about 70% load, ambient 36 °C, and reports one starter line-side lug at 82 °C while the adjacent phases read 58 °C and 57 °C.
684 words, about 3 min3Roof Moisture Survey: Daytime and Nighttime Images Conflict
A 1,200 m² low-slope EPDM roof over an occupied office is surveyed for moisture. The first survey is at 15:30 on a clear August day with ambient 29 °C, wind 5 m/s, and strong solar loading.
673 words, about 3 min4Lens Selection for 10 mm Fuse-Clip Terminals
A Level II thermographer plans to inspect 10 mm wide fuse-clip terminals inside 600 V MCC buckets through infrared windows. The camera is 320×240 with a 25° lens and an IFOV of 1.3 mrad.
679 words, about 3 min5Steam Trap Diagnosis from Downstream Temperature Alone
A plant surveys steam traps on a 150 psig saturated steam header, where saturation temperature is about 198 °C. An inverted-bucket trap on a drip leg has a downstream pipe reading of 120 °C at 0.5 m from the trap and 95 °C at 2 m.
671 words, about 3 min