Currently, the medical institutions pay great attention to the quality and safety of electric power supply. This happens because the modern medical equipment is highly sensitive to voltage failures — spikes and slumps. The imported equipment produced in compliance with the other than Russian standards is also often used. Besides, the equipment of surgery and intensive care units frequently appears to be unprotected from power outage. In this case, the problems with electric power supply can result in serious harm to patients. Accordingly, UPS is an integral part of a modern hospital.
- The UPS used to power medical equipment (CT scanners, US and X-ray machines) must be characterized by the high quality of workmanship, which is to be confirmed by the manufacturer’s test certificates provided to the customers.
- The UPS for medical devices should differ in small sizes as this provides for the convenient transportation and placement thereof in a specially designated room.
- A monitoring system is required that collects information on all emergencies and transmits it to an operator.
- A UPS construction must feature an isolating transformer that ensures galvanic separation between the load and the UPS.
- The interference filters are required to protect the powered equipment from the interferences occurring during its operation.
It should be noted that the overload capacity of an integrated UPS unit must be at least 150% for 60 seconds.
A double conversion UPS is the best option. The power source of this type has a zero transfer time at a supply voltage dip that allows medical devices to continue normal operation. The software failures and damage to the equipment boards can also be avoided. Besides, the shortage of conventional UPS units is that they produce a sawtooth voltage, which means they can cause harmful interference to equipment.