I have done experiments, and after a slight increase in the backup power capacity, the emergency light can maintain a night's brightness, enough to meet the special needs of our archives. In order to improve the brightness of emergency lighting, some emergency lamps use a cold cathode fluorescent tube, which has a brightness greater than that of the light source, and has a service life lower than that of the xenon source. In practice, due to the non-linear characteristics of the human eye and the light perception, the cold cathode fluorescent tube does not have a feeling of increasing brightness.
In order to improve the luminous efficiency of the emergency light, the electronic energy-saving tube is gradually popularized as an emergency lighting source. It has higher brightness, longer service life and lower energy consumption than the fluorescent light source, and is an ideal choice for emergency lighting. Electronic energy-saving lamps do not have a starter, which improves safety. There are many choices for emergency lighting. The emergency lights installed in the archives warehouse should be selected according to different occasions and different purposes, in order to give the greatest advantage of emergency lighting.
The JUK universal screw terminal block series has the typical features which are decisive for practical applications:
l The universal foot allows the terminal blocks to be easily snapped onto the NS35 or NS32 DIN Rail with G shape.
l Closed screw guide holes ensure screwdriver operation perfect.
l For terminal block with different wire cross-sectional areas, complete accessories are available, such as end plates, partition plates, etc.
l Potential distribution achieved by fixed bridges in the terminal center or insertion bridges in the clamping space.
l Same shape and pitch Grounding Terminal Blocks as the JUK universal series.
l Adopt ZB marker strip system,achieve unified identification.
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