Principles of thermography and thermal properties possessed by each material to properly configure the TI32 Fluke thermal camera and identify problems in electrical substation building 1, Block B-BB, 0-P0 floor. It based on the theory of thermal imaging diagnosis was made at the electrical substation and an analysis of each image captured for image analysis SmartView computational package was used, which shall include the thermal camera Fluke TI32, each of these images has a number of information supplied to make a qualitative analysis of the electrical substation.