Les systèmes d'éclairage pour les entrepôts frigorifiques

Présentation des différents systèmes d'éclairage pour des entrepôts frigorifiques à température négative. (en anglais)
Various types of lighting exist for below 0°C temperature cold stores including mercury vapor (MV) lamps, high pressure sodium (HPS) and light-emitting diodes (LED).

MV lamps are the least efficient (50 lumens/watt) of the so-called high-efficiency discharge (HID) lamps but have a white and blue white light and limited color rendition. They are currently considered poorly adapted due to low lifespan and environmental unfriendliness.

HPS lamps are the most efficient in the commonly used HID family (60-120 lumens/watt) but their orange light and limited color rendering can make them unsuitable or even dangerous in certain applications when the identification of the colors of electric wires, liquids, smoke or objects is necessary.

LEDS, on the other hand, have better efficiency (160 lumen/watt); their light covers the full color spectrum and radiates spherically. As they are illuminated solely by the movement of electrons in a semiconductor material and don’t rely on a filament, they have high energy efficiency and a longer lifespan.
La lumière sur l’éclairage des chambres froides, RPF March 2013