随着人类社会的不断进步，人们的物质生活和精神生活的完善，现代照明技术已被世界广泛接受的解释和应用的追求{zy1}，在当今社会照明已作为现代文明城市和地区措施其中一个重要标志。根据国家经贸委，建设部，国家质量技术监督局部“关于进一步推动中国绿色照明工程鉴于有关文件的精神”，中国的节能作为一项重要的环保产业政策，绑定到基础设施和改造工程具有重要的现实指导意义。

目前，中国正在迎接绿色奥运，改善在施工期间的医疗环境，及时和高效的绿色照明产品的推出，新，改建项目有效地提高能源效率，保护环境，改善照明质量，现代化和国际化的世界，创造良好的医疗保健，康复环境是必不可少的。医院照明设计和照明产品，选择能够充分发挥医院的职能，服务，直接或间接的医疗工作的目的。在充分考虑医院的特色和照明的环境特点，对照明电器的核心组成部分的重点镇流器后选定的科学，医院使用的照明质量，经营成本，楼宇安全，医务人员，医疗器械和设备的测试效率数据，诊断结果和电网，如人身伤害，污染具有重要影响和作用。医疗检测和以xx和保健的结论直接影响病人的诊断，因此，我们应密切关注。

目前，室内照明，荧光为基础;光灯和电子镇流器的有两种方式电感镇流器。下面，分别高性能电子镇流器和电感镇流器和电子镇流器一般使用做一个全面的比较：

1，比电感镇流器：

1，节能：

电感镇流器工作频率为50HZ，

电子镇流器工作频率为20?50kHz的高频下，灯发光效率比电源频率增加了10％，从而提高亮度比电子镇流器，照明镇流器电感;另一种电子镇流器本身能耗少，如在相同的亮度，在使用电子镇流器电感镇流器功率比约20?30％;一个电感镇流器提高夏季空调室内温度上升的工作，需要冷却的电力空调是不考虑。医院和大约70％的普通照明，采用高性能电子镇流器电感镇流器比高质量的2年节省?3个月的电力，照明成本能够收回的逐步减少物业管理费。

2，舒适：

电感镇流器会产生频闪现象，在这种工作环境，学习视觉疲劳。高速旋转的物体容易造成错觉，对事故隐患的存在。电感镇流器50赫兹同时低频噪音发出的，很容易激动。耳鼻喉科听音室在使用荧光灯，电子镇流器应被用来防止误诊，在荧光灯使用病房，候机大厅，电感镇流器的适当选择，频闪和噪音会导致病人的不适用的主要考虑。在电子镇流器，以xx频闪，保护视力，学生护眼灯销售与使用三基色灯设计和制造电子镇流器配备。高性能电子镇流器无频闪，无噪音，保护眼睛和保护脑，与三色的颜色支持和良好的色彩逼真度利用管，发光效率高，体积小的下降;舒适，净化工作，学习和生活环境;提高工作效率，帮助患者，适用于如照明的地方，尤其是色彩，要求病房，检查室。

3，安全：

电感镇流器由于其功率大，功率为热能，表面温度上升，特别是在电网的电压波动高温可达120?130℃，成为火灾的危险，这种事件发生了。电感镇流器

高于10℃的正常工作，启动，低于-5℃启动困难;电压180V比正常起动困难，因为它不是一个开始，多次启动易损坏灯管阴极灯管寿命缩短。

电感镇流器功率因数低，约0.4?0.6左右，在大幅增加所造成的无功功率的照明线路电流和变压器容量，从而大大增加线路和变压器损失的数量，但也增加了功率损耗，减少照明质量，对同时威胁电网运行。后电容补偿装置，大大增加了谐波电流，因此，电网和其他网络设备破坏和损害。高性能电子镇流器功率因数≥0.97，只有3％，无功功率损失，无功功率超过45％;小，使输入电流波形失真小的谐波含量对电网几乎无污染;并可以降低电力设备增容。宽电压电子镇流器，以适应工作范围，在-10℃?+50℃下正常工作环境，安全性，可靠性高。

高性能电子镇流器对灯，灯的开关频率高达10,000倍，没有明显的发黑灯更符合保障的名义灯泡寿命外，保护作用，而且还延长其寿命1.3?1.5倍。

4，绿色：

电感镇流器作为使用机器而启动，并会产生瞬时的家用电器和其它电器设备的干扰高压脉冲。电感镇流器的使用，电压过高，过低会缩短使用寿命，灯回收废物会造成汞泄漏带来的不利二次污染。高性能电子镇流器，使灯泡寿命，节省了频繁更换灯泡的成本和劳动力，这种经济和环保。

总之，新的和改造工程项目资金，以经济状况的运作，根据许可证的条件，应彻底否定电感镇流器。

其二，一般电子镇流器电子镇流器相比

是在电子“镇流器技术和晶体管”开关电源技术对高技术产品的基础上开发的，与特定产品应用电子学灯，它集光，电，磁等技术，主要技术问题的功能和可靠性，开发符合国家标准，供国内消费水平适合市场的竞争力，以及良好的成本效益的产品难以提高。电子镇流器的要求超过10年的城市，其效率高，节能，无频闪，无噪音共同关心的优势，快速发展，但由于产品的质量，主要的功能和可靠性有很多问题：功率因数低谐波含量高，电磁兼容性差，输出功率低，低灯的亮度，节能，低功耗和温度高，特别是在使用寿命短，大的地区使用的灯组电网的严重污染，有互感自激，导致镇流器损坏，使消费者蒙受巨大损失，严重破坏了电子镇流器的整体形象;对节能电子镇流器不会造成不利影响的保存金钱。近年来，电子镇流器和电子元件的研究和发展的原则，提高生产的整体水平，国内出现了一批优秀的产品。医院已对电磁骚扰设备（包括起博器灵敏度高很多，等），属于一种工业环境电磁环境中，电子镇流器必须具备电磁兼容的设计选择。普通高功率因数电子镇流器的电磁兼容性设计不，高次谐波含量，容易干扰医疗设备，因此不应是可选的。因此，医院使用电子镇流器的选择应注重其功能和可靠性在就是否通过EMC认证的重点是研究的基础上，具有良好的电磁兼容性。电气，电子设备或系统安装的电磁骚扰发射电压限制在允许的电压范围，以实现电磁环境（包括供电网络保护）的电磁兼容性设计，而在电磁环境骚扰并没有减少的能力经营业绩。由电磁敏感性（EMS）和电磁骚扰（EMI）的电磁兼容性构成。电磁骚扰的无线电骚扰，谐波电流，电压波动和闪变，如形成。电磁波沿电源线通过骚扰电网推出后，周围的空间发射波的电磁骚扰骚扰。

Basic knowledge of electronic components: choice of fluorescent lamp ballasts

With the continuous progress of human society, people’s material life and spiritual pursuit of the perfect, brilliant interpretation of modern lighting technology the world has been widely accepted and applied, lighting in today’s society has been as a measure of a modern civilized city and the region one of the important symbols . Under the State Economic and Trade Commission, the Ministry of Construction, National Quality and Technical Supervision, “about to further promote the China Green Lights Program view” of the spirit of the document, China’s energy saving and environmental protection as an important industrial policy, is bound to the infrastructure and renovation project has important practical guiding significance.

At present, China is in the green to greet the Olympic Games, to improve the medical care environment during the construction period, and timely and efficient introduction of green lighting products, for new and renovation project effectively improve energy efficiency, environmental protection, improve lighting quality, and modernization and internationalization of the world, to create a good health care, rehabilitation environment is imperative. Hospital lighting design and lighting products to choose is able to give full play to the hospital functions; Service, directly or indirectly, for the purpose of medical work. Having fully considered the environmental characteristics of hospital characteristics and lighting, the focus on the core components of electrical lighting ballasts Science selected for post-hospital use of lighting quality, operating costs, building safety, the efficiency of medical personnel, medical instruments and equipment test data , diagnostic findings and the pollution of the power grid, such as personal injury has a critical influence and role. Medical detection and diagnosis of patients with a direct impact on the conclusions of the treatment and health; Therefore, we should pay close attention to.

At present, the interior lighting to fluorescent-based; light lamps and electronic ballasts have ballast inductor in two ways. The following, respectively, high-performance electronic ballast and inductive ballast and general use of electronic ballasts to do a comprehensive comparison:

1, compared with Inductance Ballast:

1, energy efficient:

inductance ballast operating frequency is 50HZ,

electronic ballast operating frequency is 20 ~ 50KHZ, lamp luminous efficiency under high frequency than power frequency was increased by 10%, thus electronic ballast lighting ballast inductance than enhance brightness; another electronic ballast itself consumes less, such as in the same brightness, the use of electronic ballast inductance ballasts power than about 20 ~ 30%; one inductor ballast to increase the work of interior temperature rise in summer air-conditioning required to cool the electricity is not taken into account. Hospital and about 70% of the general lighting, using high-performance electronic ballast inductance ballasts than high-quality 2-year savings of ~ 3 months electricity, lighting costs can be recovered gradually reduce property running costs.

2, Comfort:

inductance ballasts will produce stroboscopic phenomenon, in this working environment, study visual fatigue. High-speed rotating objects easy to create the illusion, the existence of hidden causes of accidents. Inductance Ballast 50HZ issued at the same time the low-frequency noise, is easily agitated. ENT listening room when using fluorescent lighting, electronic ballasts should be used to prevent misdiagnosis; wards, waiting hall in the use of fluorescent lamps, the appropriate selection of ballast inductor, the main considerations of stroboscopic and noise will cause the patient’s does not apply. The use of electronic ballasts to eliminate stroboscopic, to protect their eyesight, marketing students护眼灯is equipped with electronic ballasts using trichromatic lamp designed and manufactured. High-performance electronic ballasts no stroboscopic, no noise, eye protection and Conservation brain, with the three color tubes supporting the use of color and good color fidelity; high luminous efficiency; light small decline; comfortable; purification work, study and living environment ; improve work efficiency, enabling patients; applies in particular wards, examination rooms, such as demanding of lighting color of the place.

3, Safety:

Inductance Ballast Because of its large power, power into heat, the surface temperature rise, especially in the power grid voltage fluctuations in high temperature up to 120 ~ 130 ℃, become a fire hazard, such incidents have happened. Inductance Ballast

above +10 ℃ start in the normal work, which is lower than -5 ℃ startup difficulties; voltage 180V difficult than normal starter; because it is not a start, many times to start easy to damage lamp CATHODIC shorten lamp life.

Inductance Ballast power factor low, around 0.4 ~ 0.6 or so, resulting in substantial increases the reactive power lighting line current and transformer capacity, thereby greatly increasing the number of lines and transformer losses, but also increased the power loss, reduce lighting quality, at the same time pose a threat to run the grid. After the installation of the compensation capacitance, significantly increased the harmonic currents, so the power grid and other network equipment to disrupt and harm. High-performance electronic ballast power factor ≥ 0.97, only 3% of the reactive power losses, reactive power for more than 45%; harmonic content of the small, so that input current waveform distortion small, on the power grid virtually pollution-free; and can be reduced for Compatibilization electric equipment. Wide-voltage electronic ballasts to adapt the scope of work, in -10 ℃ ~ +50 ℃ under normal working environment, security, high reliability.

high-performance electronic ballasts have protective effects on the lamp, lamp switching frequency of up to 10,000 times more than no obvious blackening lamp, with the exception of guaranteed nominal lamp life, but also an extension of its Life expectancy 1.3 ~ 1.5 times.

4, green:

Inductance Ballast starter as a result of the use of machinery, and will produce instantaneous high voltage pulse of home appliances and other electrical equipment interference. The use of inductive ballast, voltage too high, too low will shorten the lamp life, lamp recycling waste will cause adverse mercury leaked bring secondary pollution. High-performance electronic ballasts so that the lamp life, saving frequent lamp replacement costs and labor, this economical and environmentally friendly.

To sum up, for new and renovation project, in project funds the operation of the state of the economy under the conditions of the permit should be to completely negate the inductance ballasts.

Second, the general electronic ballasts electronic ballasts compared

are in the electronic “ballast” of technology and transistor switching power supply technology developed on the basis of high-tech products, are lamps with electronic Studies of specific product applications, it combines light, electric, magnetic and other technologies, the main technical problems are the function and reliability, to develop in line with national standards and is suitable for domestic consumption levels, with market competitiveness, and good cost-effective products difficult greater. Electronic ballasts ask the city of more than ten years, its high efficiency and energy saving, no stroboscopic, no noise advantage of common concern, and the rapid development, but because of the quality of the product is mainly the function and reliability has many problems: Power Factor low harmonic content was high, the electromagnetic compatibility is poor; output power low, low lamp brightness, energy efficiency, low power consumption, and temperatures are high, especially in the short service life, large-area group of lamps used in the power grid seriously polluted; and have mutual inductance Self-excited, leading to ballast damage, so that consumers suffered a great loss; seriously damaged the overall image of electronic ballasts; to the power-saving electronic ballasts do not cause adverse effects to save money. In recent years, the principle of electronic ballasts and electronic components research and development, improve the overall level of production, domestic emerged a number of excellent products. Hospital has many of the high sensitivity of electromagnetic harassment equipment (including pacemakers, etc.), belong to A type of electromagnetic environment of industrial environment, electrical lighting ballasts in the choice of design must have the electromagnetic compatibility. Ordinary high power factor electronic ballast without electromagnetic compatibility design, high harmonic content, easy to interfere with medical equipment and thus should not be optional. The use of electronic ballasts for hospital choice should focus on its functionality and reliability on the basis of the study focused on whether or not to pass EMC certification, has a good electromagnetic compatibility. Electromagnetic compatibility design of electrical, electronic equipment or system installation electromagnetic harassment fired voltage limited to permit the voltage range in order to achieve the protection of the electromagnetic environment (including power supply network), while in the electromagnetic environment harassment has not reduced the ability of operating performance . Electromagnetic Compatibility from electromagnetic sensitivity (EMS) and electromagnetic harassment (EMI) constitute. Electromagnetic harassment by the radio harassment, harmonic current, voltage fluctuation and flicker, such as the formation. Electromagnetic wave of harassment along the power line through the launch of harassment power network, the surrounding space launch wave electromagnetic harassment. (07-12-6)