An insulator for a test clip is described. The insulator includes a first clip cover configured to removably attach to a top portion of a test clip. The test clip comprises a top portion and a bottom portion pivotally attached to the top portion along a pivot axis. The insulator also comprises a second clip cover configured to removably attach to the bottom portion of the test clip. Each of the first and the second clip cover comprises one or more retaining elements configured to secure the clip cover to its respective portion of the test clip. In some implementations, each of the first and the second clip cover comprises one or more cantilevered retaining segments configured to extend over a portion of the test clip in order to secure the first and the second clip covers to the test clip.