The important role of emergency lighting and the present situation and problems

Emergency lighting, like fire extinguishers and smoke detectors, is essential to commercial, industrial and public buildings and facilities, it can provide service for the building personnel in the event of an emergency. National, state, and local laws and regulations guiding effect to the practical application of emergency lighting. To understand the relevant laws and regulations must first understand the 'national electrical regulations' ( NFPA 70) And the life safety rules and regulations ( NFPA 101) 。 Should pay attention to the very important point: rules only reflect the minimum standard requirements. 法规要求一个应急光源应至少连续照明90min ( For example: fluorescent lamp lighting device for emergency ballast or use generator) 。 Local or state building codes can be for lighting in some cases, additional requirements; 应急光源必须在常规电源断开后10s 之内开始工作。 It is suitable for the light from a light source ( Such as conventional light source) Conversion to another source ( Such as battery power supply of the fluorescent light source system for emergency ballast or use generator) The situation; 法规要求清晰地标出安全通道方向的变化; 国家法规要求( According to the current interpretation) Emergency lighting should be able to at least a foot on the ground of the safe passage of candle average initial illuminance ( The beginning of 90 min working hours) 。 Channel of the ground illumination minimum and average relative ratio of 011 foot candle. According to the local or state laws and regulations, this value can be different in some area. Secure channel is guide the staff of the building through the path of the building to safe location. Most people think safe passage within the building. In fact, safe passage can include building outside to public roads ( Such as street) The area. Channel called the outdoor channel extends to the building. In recent years, outdoor channel become more important in regulations and emergency lighting plan area. 检测是法规的另一重要要求。 Emergency light should be carried out every 30 days a 30 s detection. For a battery-powered device, each year must test the 90 min. Emergency lighting devices must have the function of continuous testing, and must keep written records of the results. 1 inspection and maintenance due to emergency lighting device used only in case of an emergency, so in order to ensure the device is functioning correctly at any time, often irregular, basic, testing and subsequent maintenance is very important, care for the peace of the residents is one of the most important, but the responsibility is still a problem, especially when the liability problem, the correct detection and maintenance can provide evidence. In addition, the emergency light source is a kind of important investment, should guarantee the maintenance of it; Have all kinds of rules and regulations must be tested and maintained. Despite the regulations require experience and common sense, but not all emergency light source detection and maintenance on a regular basis. Unqualified, usually involves two time and cost factors; But when testing easy, can reduce the two concerns. Emergency lighting usually consists of a variety of ways. The most common source of emergency lighting power supply is fluorescent emergency ballast ( 2月) 。 FEB 具有以下优点:提供可靠的照明,并且可独立于其他应急照明装置工作。 If a FEB fails, the fault has no effect on other FEB. However, if a generator system failure, the failure is easy to have important effect on life safety system; 对建筑和照明设计进行补充。 But not influence the aesthetic effects; Only when needed, can see emergency lighting; 产生和正常光源相同的光; 节省安装时间和费用; 因为FEB 隐藏在灯具内部或附近,所以不会成为故意破坏者的目标。 2 intelligent ballast that sells on the market there are many kinds of emergency ballast, from only products that meet the regulatory requirements to intelligent high-end products, intelligent high-end products can make the structure of the owner and the user's life easier. Intelligent ballast on the detection and maintenance and normal ballast are quite different.