O Introduction
With the development of GMP clean technology at home and abroad in recent years, the production environment of the pharmaceutical industry is becoming more and more demanding, and the design of clean plant is becoming more and more important. In order to implement the national guidelines and policies and the "Quality Management Standards for Pharmaceutical Production" in the design of clean factory buildings in the pharmaceutical industry, to achieve advanced technology, economical application, safety and reliability, quality assurance, and meeting the requirements of energy conservation and environmental protection, the country re-established in 2008. GB50457-2008 "Design Code for Cleanroom of Pharmaceutical Industry" was issued. The cleanliness of the cleanliness of the pharmaceutical industry is divided into 100 grades, 10,000 grades, 100,000 grades and more than 100,000 grades (equivalent to 300,000 grades). The process is complex and the environment is complex. The electrical design needs to closely cooperate with the process and warm. By specializing in the profession, how to design electrical lighting in accordance with the cleanliness requirements of pharmaceutical production? The following is a brief discussion of the electrical lighting design in the clean room of the pharmaceutical industry.
1 Lighting design of clean workshop
1.1 Illumination and Illumination Uniformity According to the study of visual function, the illuminance function when comparing the change of sensitivity is effective to improve the contrast sensitivity before reaching a certain contrast sensitivity value. The clean room of the pharmaceutical industry is a closed workshop. The interior is mostly a windowless room (area). The International Lighting Commission (CIE) "Indoor Lighting Guide" stipulates that the illumination of a windowless factory building should be at least 500lx. According to the current power level in China, it should be based on the basic requirements of lighting. When the minimum illumination is 150lx, it can basically meet the physiological and psychological requirements of workers. In order to improve production efficiency, Article 14 of China's GMP (1998) stipulates that “the illumination of the main studio is declared as 300lx; the production site with special requirements may be provided with local illuminationâ€. As for the auxiliary studio, corridor, air lock chamber, personnel purification and material purification room, considering the light and dark adaptation problem with the production workshop, the illuminance should not be lower than 150lx.
Illumination uniformity refers to the ratio of the minimum illuminance to the average illuminance on the specified surface. When the illuminance ratio is appropriate, the fatigue can be reduced and the concentration can be concentrated, so that there is no dark feeling in the room. In the main studio of the medical clean room (area), the uniformity of illumination illumination should not be less than 0.7, which is generally satisfied in engineering design.
1.2 Selection of light source The clean room of the pharmaceutical industry is naturally less ventilated. Generally, air vents are provided in the rooms and corridors of the purification area, and the air is sent out by the air conditioner. The increase in the number of air outlets and the installation location limits the number of luminaires and the installation location of the luminaires. This requires minimizing the number of luminaires under the same illuminance conditions. A highly efficient light source should be used as the source of the purification zone (chamber). The luminous efficiency of high-efficiency fluorescent lamps is generally several times that of incandescent lamps, and the light source is a cold light source, which is not easy to generate heat. This not only satisfies the requirements for efficient lamps, but also reduces the energy consumption of air conditioners and meets energy-saving requirements.
The pharmaceutical industry naturally has less natural light. In working hours, the lamps generally need to be in working state for a long time, which requires the working light source to be closer to the natural light source. The spectral distribution of the source of the fluorescent lamp is close to that of natural light, which can meet the requirements of the light source. At present, medical clean rooms (areas) with high requirements for comparison are generally used as fluorescent light sources at home and abroad.
1.3 Lamp Selection The function of the luminaire is to protect the light source and to work in a variety of environments and to meet appropriate safety standards.
Since there is a certain requirement for air cleanliness in the clean room, the production of the drug needs to be disinfected regularly. Therefore, the lamps in the clean room (area) should be simple, difficult to dust, easy to wipe, easy to disinfect and sterilize. .
1.4 Installation of lamps The clean room (zone) is different from the environment on the ceiling. The installation of lighting fixtures will directly affect the clean room (zone) from the ceiling. The cleaning room (area) lamps generally have two installation methods: ceiling mounting and in-ceiling concealing. The in-ceiling installation increases the opening area of ​​the ceiling, which not only makes it difficult to seal the opening on the roof during the construction process, but also the roof. The opening of the opening of the opening is easy to be walked by the maintenance personnel during the maintenance of the equipment on the hanging item, causing the opening of the opening to break and form a communication with the clean room (zone), causing pollution to the clean room (area). Although the lighting fixture is not the main source of dust in the clean room (area), if it is not properly installed, the dust particles will seep into the clean room (zone) through the lamp. Moreover, the embedded ceiling mounted lamps have a relatively large investment and relatively low luminous efficiency. Practice has proved that in a non-unidirectional flow clean room, the choice of lighting fixtures will not reduce the air cleanliness level. In view of the above reasons, the lamps in the general clean area (room) should be ceiling mounted. If the installation of the luminaire is subject to the height limitation and the special requirements of the process, it must be concealed. The size of the opening should be accurate. It must be sealed to prevent dust particles from penetrating into the clean room (zone).
1.5 Selection of emergency luminaires Emergency lighting is lighting that is activated by the failure of normal lighting power. Emergency lighting includes evacuation lighting, safety lighting, and backup lighting.
If the lighting of the clean room of the pharmaceutical industry is cut off due to power failure, some pharmaceutical products will be scrapped, and some will cause fire, explosion and poisoning accidents, which will bring danger and loss to personal safety and property. In case of accidents and situations, emergency lighting should be set up in the clean room of the pharmaceutical industry. The illumination of the alternate lighting should be the minimum illumination for the operation of the desired location or location. In the main working surface of the fire control room, emergency generator room, power distribution room and telephone room, the illumination of the standby lighting should not be lower than the illumination value of the normal lighting.
The clean room of the pharmaceutical industry is a closed factory building with many internal partitions. The internal personnel flow path is complicated, and the access passage is roundabout. In order to facilitate evacuation of personnel in the event of accidents and fire fighting during fire, the clean room should be equipped with emergency lighting for evacuation. . Marking lights are installed at the corners of the installation exit, emergency exit, evacuation port and evacuation passage to facilitate evacuation of the direction of the evacuation and rapid evacuation of the accident site. Red emergency lights are set at the special fire exits so that firefighters can enter the factory in time to extinguish the fire.
Emergency lighting systems generally recommend the use of lamps with built-in battery energy storage. Each area is evenly distributed according to 25% to 30% of the total number of lamps. The shape of the emergency lamps is the same as that of normal lamps. Usually, as part of normal lighting, the battery is in a state of charge. When there is a sudden power outage, it automatically switches to the battery power supply state, and the lamps with energy storage start working for the operator to deal with before the departure. It is also possible to use a part of the luminaire with a special lighting line to be powered by EPS or diesel generators, depending on the specific conditions of the project.
1.6 The choice of lighting fixtures for hazardous areas in explosion-proof areas and the installation of medical clean rooms (areas) with explosion-proof requirements, the selection and installation of lighting equipment should first comply with the current national standard GB50058 "Explosion and fire hazard environment power device design The relevant provisions of the Code, while considering the requirements for cleanliness.
This article refers to the address: http://
0-10V Dimmable LED Driver,use 0-10V dimmer,Waterproof IP65 Aluminum housing series, 1-300W CE/ROHS/SAA/ETL/TUV/EMC,Input voltage can be both 110V and 220V,Wattage can be 1-80W, DALI/TRIAC/0-10V/PUSH dimmable and non dimmable, flicker free,noise free,load free, Perfect dimming curve, PF>0.95,constant current 350mA 700mA 900mA 1200mA,constant voltage 12V 24V 36V, parameters can be customization,OEM/ODM is supported,Same appearances but different sizes, forming a perfect product line,Use for led panel light,led strip light and other indoor led lights
IP65 0-10v Dimmable Led Driver
0-10V Driver,240W 0-10V Driver,24V Dimmable LED Driver
HAURUI LIGHTING CO.,LTD , http://www.huaruileddriver.com