Cover type FTU portable fault detection box

The invention provides a cover-type FTU portable fault detection box, and relates to the technical field of power system equipment, and the detection box is connected with an FTU and a pole-mounted switch through the outer plugging end of an aviation plug; inner side leads of the aviation plugs are respectively and correspondingly connected with the wiring terminals on the terminal strip in sequence, and are used for realizing voltage or current detection by contacting the two probes of the measuring meter with the wiring positions of the corresponding terminals. By arranging the detection box, the voltage or the current can be rapidly measured by respectively switching the universal meters on the wiring terminals of the terminal strip on the basis of not changing the original wiring modeof the cover type FTU and the pole-mounted switch, so that the troubleshooting time is effectively shortened, and the working efficiency is greatly improved; and the detection box adopts a detachableinstallation design, can b