Micro-outage (or micro-interruption) - Total loss in the supply of power for 10 ms.
Load power - Apparent power Pu that the UPS inverter supplies under given load conditions. It is less than or equal to the rated output Pn. The ratio Pu/Pn defines the % load of the inverter.
Power source (safety) - Power source for loads defined as critical by applicable safety regulations. This supply must not be affected by a mains failure and is generally separate from other supplies.
Hourly Rate (also see C-Rate) - A discharge rate, in amperes, of a battery which will deliver the specified hours of service to a given cutoff voltage.
IR Drop - A voltage drop associated with the electrical resistance (R) of a battery or current flow (I). The voltage drop is the product of the current (in amperes) and the resistance (in ohms).
Noise level - Acoustical decibel level of a source of noise, measured according to the applicable ISO standard.
Current Collector - An inert structure of high electrical conductivity used to conduct current from or to an electrode during discharge or charge.