Luminaire light distribution is classified as semi-cutoff when the candlepower per 1000 lamp lumens does not numerically exceed 50 (5.0%) at an angle of 90 degrees above nadir (horizontal), and 200 (20%) at a vertical angle of 80 degrees above nadir. Thi
The decrease in the state of charge of a battery or cell, over a period of time, due to internal electro-chemical losses.
Cells that are free from routine maintenance and can be operated without regard to position.
Substation Control System.
Substation Control Point. HMI computers at substation level allowing the operators to control the substation.