The horsepower rating of three-phase motors is about 150% greater than for single-phase motors. Lots of Workshops and Factories have 3-phase equipment. Forklift Battery Loaders, Compressors, Hydraulic Pumps, Machinery with Motors are in most case powered by 3-phase Voltage/Current.
We do all 3-phase tests, so your company is in Compliance with Work Health & Safety. We have special adapters to test 4-pins and 5-pins and all currents (10A, 20A, 32A, ...)