RMS Voltage - The range of usable voltage + or - 170 VAC.
Pulse Current - A periodic current drain of higher than normal drain rates.
Safety Vent - A venting mechanism designed into a cell which activates under specific conditions of abuse to relieve internal pressure.
Noise level - Acoustical decibel level of a source of noise, measured according to the applicable ISO standard.
Midpoint Voltage - The voltage of a battery midway in the discharge between the start of the discharge and the end voltage.
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.
Micro-outage (or micro-interruption) - Total loss in the supply of power for 10 ms.