Planning and Design of Underground Garage Lighting
In the underground parking lot, when it comes to the lighting design of the parking lot, it is inevitable to complain for a while. Some underground garage cars are driven in and the lights are turned off.
It should be known that in the electrical design of civil buildings, the lighting design of the underground garage is an indispensable part. Although its design is relatively simple, its workload is large, and the engineering design cycle is short, resulting in some designs in the lighting design of the underground garage. Irregular phenomena, such as unreasonable selection of the location of the power distribution room, unsatisfactory power supply radius, unreasonable selection of lamps, illuminance and lighting power density values that do not meet the requirements, inconvenient control, unreasonable wiring, etc.
Garage Lighting Design Practical:
Garage conditions: the installation height of lamps is 3.2 meters; the width of the driveway is 6.5 meters; the size of the parking space is 5 × 2.5 meters.
Lane lighting arrangement: a single row in the center of the lane, the lighting distance (middle-middle) is 2.8~3.0 meters.
Arrangement of parking space lamps: The lamps are placed according to the parking spaces, facing the gap between every two cars.
Before designing the energy-saving lighting of underground parking lot, we need to know the relevant provisions of the national standard "Architectural Lighting Design Standard GB50034-2013":
Residential building: garage floor illumination 30 lx; current value of lighting power density ≤ 2.0W/m²; target value ≤ 1.8W/m²;
Public buildings: garage floor illuminance 50 lx; current value of lighting power density ≤ 2.5W/m²; target value ≤ 2.0W/m².
According to relevant regulations, let's take a look at several problems existing in the current urban underground parking lot lighting:
1. The lighting cost is expensive. Generally, garage lighting needs to work 24 hours a day without interruption, and the annual electricity bill is quite large;
2. The number of garage lights is large, and the replacement and maintenance workload is large, which is a difficulty in property management;
3. Due to the consideration of operating costs, underground garage lighting generally only lights up a small number of lamps, as shown in the figure below. Makes the light dim and crowded
The amount is very small, which often provides favorable conditions for criminals and is a weak area of security management.
So how to achieve not only environmental protection and energy saving, but also ensure the brightness of parking lot lighting, to ensure the safety of car owners?
Blindly turning off the lights to save electricity saves money, but if there is a safety problem, it is not just an embarrassing problem.
We know that when choosing lamps, we should try to choose energy-saving lamps, and the distance and height should be reasonable when arranging.
In addition to this, we can also solve this problem in an intelligent control manner.
The intelligent lighting control of the parking lot automatically controls the number of lights on and off. The different illumination modes of the control area are achieved for lighting, so that the lighting of the lights is effectively used, and the waste of electric energy is greatly reduced, the lamps are protected, and the service life of the lamps is prolonged.
To install a smart sensor system in a luminaire:
Provide 100% lighting brightness when there are people in the area;
When there is no one in the area, the lighting brightness is automatically reduced to 10%;
If no sign of activity is detected, the luminous flux will be reduced to 5% for a certain period of time, and the lamp will be turned off completely after a few minutes. It not only meets the requirements of security monitoring lighting, but also greatly saves electricity.
The benefits of intelligent control of parking lot lighting:
1. Drivers can find empty parking spaces accurately, safely and efficiently through the eye-catching guide screen;
2. Reduce the operating cost of the parking lot and greatly improve the social and economic benefits;
3. Improve the utilization rate of the parking lot and better manage the parking lot;
4. For shopping malls or shopping centers, it can also improve a good shopping environment and improve customer satisfaction;
5. Improve the grade of underground parking lot.
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