hospital grade(Cords used with North American medical equipment must be hospital-grade. What makes the cord hospital grade: the plug. Commonly known as hospital-grade plugs, they are subject to special requirements contained in the following standards: Medical equipment standards: UL 60601-1 and CAN/CSA C22.2 no 60601-1; Power supply cord standards: UL 817 and CAN/CSA C22.2 no 21; Attachment plug standards: UL 498 and CAN/CSA C22.2 no 42. elfhawk)
mechanical power efficiency(measures the effectiveness of a machine in transforming the energy and power that is input to the device into an output force and movement Millie)