¿When monitoring isolated power systems in hospitals, what role do remote indicators play?

There are several different types of power failures, the most common of which is an unexpected interruption in a surgical process, the paralysis of a critical area, or the outage of power in general areas. The interruption can last seconds, minutes, or even hours depending on the scope of the damage.

This is why the use of isolation monitors is crucial within the isolated power system; critical areas, for example, must have an isolation board, which allows the connection of electromedical equipment through its branch circuits. Ideally, these monitors should be placed as close to the operating rooms as possible or even inside them to reduce leakage currents, as well as having remote indicators on the line isolation monitor to indicate the system’s status.

In addition to providing real-time visualization of the equipment, continuous monitoring systems provide the ability to make key decisions to prevent outages, reduce costs, and protect the lives of patients and medical staff.

Designed for use with insulation monitors, the remote indicator displays the system’s insulation or ground fault status through an external mounting device. Isolation fault monitoring provides advance warning of faults which can be essential for several procedures.

The devices that perform this task measure the resistance of the connected circuit. The main function of the monitor is to monitor the leakage current of the system. An impedance measurement is continuously performed between the insulated lines and the ground by the Monitor. From the value obtained, the monitor calculates the total hazard current present in the system. If the value exceeds 2 mA or 5mA, an audible and visual signal lights up, indicating a fault in the system. However, this does not mean that a serious danger poses a threat to the patient’s or medical staff’s safety.

In what ways can isolation fault monitoring be used? A remote device is used in those areas where there is no direct line of sight with the line isolation monitor of isolated power systems, i.e. if an isolated power system is located in another corridor or room and the nursing station has no direct line of sight with it, a remote monitor must be installed.

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