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Infrared electrical inspections have been performed regularly for more than 30 years. They are now conducted in almost every country in this world. Millions, if not billions, of electrical components are inspected each and every year. Despite the level of use there is much misconceived, mistaken and outwardly false information circulating within the industry regarding how to accurately perform an electric inspection. We call these items 'myths' since a myth is a fictitious story or an unfounded belief. Of the many myths being propagated today, the four main ones that unfortunately can still be heard regarding infrared electrical inspections are: (1) Infrared inspections are not necessary because each year all the connections are tightened. (2) Infrared inspection of electrical components can accurately be made through cabinet doors and other covers. (3) It is not necessary to obtain the current flow reading of the electrical system. (4) Temperature measurement is accurate as long as you can 'see' the hot spot. These myths are reviewed one by one.
Ron Newport
"Infrared electrical inspection myths", Proc. SPIE 3056, Thermosense XIX: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (4 April 1997); https://doi.org/10.1117/12.271633
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Ron Newport, "Infrared electrical inspection myths," Proc. SPIE 3056, Thermosense XIX: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (4 April 1997); https://doi.org/10.1117/12.271633