High efficiency standby power system for emergency evacuation lifts

By: Power Systems International Limited  05/01/2011
Keywords: Hospitals, medical, Stand by power systems for emergency evacuation lifts

This innovative purpose built system provides standby power to dedicated emergency evacuation lifts installed in schools, libraries, hospitals and other public buildings. The unit is extremely cost effective and eco-friendly consuming hardly any energy in its quiescent mode.

The compact dimensioned power system is built in a steel enclosure comprising a high performance intelligent rectifier battery charger, maintenance free battery and an inverter with automatic bypass feature.

In an emergency evacuation situation or when the public power supply fails, an authorised person controls the EPS at the externally located “emergency power” switch by using a remote control key, like the ignition switch in a car. The “emergency power” switch is usually installed adjacent to the call button for the lift or on the control panel in the lift car, and once activated powers the lift hoisting system from its internal inverter and batteries independent of the mains power. The “on emergency power” button illuminates to signal power is being provided to the lift traction system from the EPS system.  It is then possible for the authorised person to operate the lift for a prescribed number of journeys which can be as many as 10 upward and 10 downward journeys within the one hour period as stipulated in the EN-British Standard specification.

Keywords: Hospitals, medical, Stand by power systems for emergency evacuation lifts

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