Thermography measures surface temperatures by using infrared video and still cameras. These tools see light that is in the heat spectrum. Images on the video or film record the temperature variations of the building's skin, ranging from white for warm regions to black for cooler areas. The resulting images help the auditor determine whether insulation is needed. They also serve as a quality control tool, to ensure that insulation has been installed correctly.
Utility Plant Solutions has a number of applications for Thermography, including: -Steam trap surveys -Inspections of electrical equipment identify excess heat on apparatus and detect electrical issues such as loose connections, faulty fuses, defective breakers, damaged switches, overloaded or imbalanced circuits and other problematic electrical conditions.
Example: Motor Starter
The diﬀerence in temperatures of the lugs between each phase indicates a potential fault. The 'A' phase lug temperature to ambient temperature diﬀerence is within an acceptable range. The 'C' phase lug shows indication of minor concern. The 'B' phase lug shows indication of a potentially major concern.
Isolate the motor starter and inspect the condition of each electrical connection. Verify the wires are in good condition, the conductors are clean and in good condition, and that the lugs are tightened to the proper torque speciﬁcation.