Ambient Humidity - The average humidity of the surroundings.
Earthing system TN - Earthing system in which the exposed conductive parts are interconnected and connected to the neutral. The neutral is connected to the earth. The installation must be de-energized immediately in the event of an insulation fault.
RMS Voltage - The range of usable voltage + or - 170 VAC.
Reversal - The changing of the normal polarity of a battery due to overdischarge.
UPS (single) - A UPS made up of one single UPS unit (rectifier/charger, inverter and bypass) and a battery.
Battery cells - The interconnected battery elements that supply electrical power created by electrolytic reaction.
Energy Density - The ratio of the energy available from a battery to its volume (Wh/L) or weight (Wh/kg).
