GKN Aerospace and its manufacturing facility in Trollhättan is currently lacking a generator test bench facility. A generator test rig is therefore to be developed and designed with regards to the possibility of future use of other machines. The generator will be powered by an electric machine. No load will be applied, however, 12000 revolutions per minute is required to be achieved. Hazardous voltage and current levels are expected as a result, and a pre-study focused on electrical safety and mitigation of risks is required. In the thesis work, textbooks, standards, scientific journals and reports have been used as references concerning applicable engineering standards and safety regulations. Applicable standards were used as a foundation of the work. The possible hazards of the test rig wereidentified and actions for risk mitigation implemented. Hazardous current levels, among others, such as high rotational speeds are present during the operation of the test rig. The test rig design resulted in a base plate with a set of rails with carriers and clamping mounts, where two machine mounts are attached, giving both the ability to adjust the distance and lock in place. Mounting of the machines is done using adapters that are machine-specific and can easily be replaced if desired. A machine guard made of polycarbonate and a checklist were produced, to assure safe operation of the test rig