How To Design The Different Lighting Areas Of The School?
December 11,2021
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School lighting should ensure that the light environment of each classroom is not only sufficient and uniform, but also minimize glare to protect students' eyesight. Truly provide students with a healthy, comfortable, and green classroom light environment.
So what are the types of school lighting fixtures? How to design different lighting areas in the school? How to buy school lighting lamps? If you want to know the answer, just read on!
Types of school lighting fixtures
Fluorescent lamps
The area of the ordinary classroom is small. To make its illumination distribution uniform and save energy, single tube fluorescent lamps should be used. Open lighting lamps with a certain protection angle and an efficiency of no less than 75% should be selected for ordinary classrooms, and naked lamps and box fluorescent lamps should not be used.
Grating lamps
Lamps with high brightness or full mirror light control cover should not be used, and lamps with low brightness, diffuse, or semi mirror light control cover should be used. Qualified classrooms can adopt lamps with grille or diffuse cover, and the efficiency of lamps should not be less than 60%.
Batwing light intensity distribution lamps
Lamps with batwing light intensity distribution generally have a large protection angle, good light output diffusion, large lamp spacing, and uniform illumination, which can effectively limit glare and light curtain reflection, and is conducive to improving classroom lighting quality and saving energy.
Indirect or semi-indirect lighting lamps
If the classroom space is high and the ceiling reflection ratio is high, indirect or semi-indirect lighting lamps can be hung. In addition to downward illumination, more light is projected onto the ceiling to form indirect lighting and create a more comfortable and pleasant light environment.
Lighting design in different areas of the school
?Ordinary classroom
Lighting mode: the desks in ordinary classrooms are arranged regularly, and the general lighting mode of evenly distributing lights on the ceiling should be adopted.
Lighting requirements: to ensure the uniformity of illumination, the distance height ratio (1 / h) shall not be greater than the maximum allowable distance height ratio of the selected lamps.
?Blackboard
Lighting mode: the vertical illumination on the blackboard is very low and the uniformity is poor. Therefore, special lamps are set under the blackboard for lighting.
Lighting requirements: the protection angle of the lamp on the student side should be greater than 40°, and the hanging height of the lamp and the distance from the blackboard wall should be reasonably determined.
?Ladder classroom
Lighting mode: lamps with good glare limiting performance should be selected and installed by the ceiling or embedded.
Lighting requirements: the location of the projection screen should be separated from the blackboard. The projection screen should be as far away from the blackboard lighting area as possible and have an inclination angle with the ground.
?Library
Lighting requirements: in addition to meeting the illuminance standard, the lighting design shall strive to improve the lighting quality, especially pay attention to reducing glare and light curtain reflection.
Precautions: pay attention to safety and fire prevention in the selection, installation, and layout of lamps and lighting equipment.
?Campus landscape
Lighting mode: LED lighting should be adopted. LED has gorgeous colors and rich shapes. At the same time, it is also very energy-saving and environmental protection.
Design scheme: set the lamps next to the building, so that the light can shine on the surface of the building, making the outline more three-dimensional. In addition, lamps of different colors are set next to plants to render the surrounding environment.
Purchase of school lighting lamps
Efficiency of lamps
Lamp efficiency is the percentage of luminous flux emitted by the whole lamp in the luminous flux emitted by all light sources of the lamp. It is one of the important parameters to measure whether a lamp is energy-saving.
The higher the efficiency of the lamp, the more effective the lamp can use the luminous flux of the light source; On the contrary, the lower the efficiency, the more energy is wasted.
Light distribution shape of lamps
At present, the commonly used classroom lamps include small grid lamps and large grid lamps. The light distribution shape of general small grid lamps is cosine light distribution. The maximum light intensity of this lamp is basically under the lamp, the light intensity shooting around is very low, and the luminous flux is concentrated under the lamp.
If you want to achieve the high illumination uniformity required by the standard, you can only increase the number of lamps, otherwise, there will be bright and dark in the classroom and low illumination uniformity.
The light distribution shape of lamps with a large grid can be made into bat wings. These should be considered according to the specific situation of the classroom.
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