Application of 600W high-efficiency high-pressure sodium lamp and accessory electrical appliances in high pole lighting
Abstract: Import and export lighting for highways, overpass lighting and urban centers Lighting such as roads and plazas are heavily illuminated by high pole lights. This paper introduces a new type of energy-saving light source and electrical appliances - 600W high-efficiency high-pressure sodium lamp and supporting electrical appliances on high pole lights.
Keyword: High-pressure sodium lamp lighting accessory
High-pressure sodium lamp is the third-generation energy-saving light source, which is widely used in roads with its high luminous efficiency, long life and high performance price ratio. Lighting places such as squares. Usually, we
concentrate multiple luminaires on a lighthouse that is more than 20 meters above the ground. It is called high-pole lighting. Because of the large distance between the illuminant and the light source, it is generally suitable. p>
Use a light source luminaire with a height equal to 1KW, but we will observe carefully that the light source and luminaire used in many high-beam lighting in China are 400W power, why should it be used?
The design has the following reasons:
Light source problem
The high-light sodium illumination lamp with a high power of 400W is a high-pressure sodium lamp. Its life and quality are very high. It is difficult to reach the nominal value of the manufacturer, especially some manufacturers with small scale and low technical level. The problems such as loose head and arc extinction are serious, and the service life is short, which cannot meet the actual use requirements of users. Although some reasons are caused by improper use of electrical appliances and improper use, it is an indisputable fact that the 1KW high-pressure sodium lamp has a low quality level relative to the high-pressure sodium lamp of 400W or less.
Supporting lamps and electrical problems
The operating current of 1KW high-pressure sodium lamps is 10.3A, which is 2.2 times that of 400W. Therefore, the requirements for lamps are particularly high. At present, a large number of cheap lamps are sold in the domestic market. There are fewer special lamps designed for 1KW high-pressure sodium lamps, and a large number of lamps are used for the American standard 1KW metal halide lamps (M47) (due to the introduction of eight American standard gold halides in China) Lamp production line), although the lamp power is 1KW, the lamp current of the M47 metal halide lamp is only 4.1A, which is less than the lamp current of the 400W high-pressure sodium lamp. Therefore, the requirements of the lamp holder for the lamp holder are relatively low, usually M47 metal halide. There is no problem with the use of such lamps, but when such lamps are used with 1KW sodium bulbs, the failure of the lamp holders to be burnt due to high temperature and high current is repeated, and the faults and their associated appliances are also For larger relationship, the M47 type metal halide lamp should be equipped with CWA type (LC peak lead type) ballast to work normally. The ballast has good steady current performance. When the power supply changes ±10%, the lamp power changes less than 10%. The high-pressure sodium lamp ballast is equipped with an inductive ballast. When the power supply voltage rises to +10%, the lamp power rises by 24-26%, and the linear difference ballast can reach 28-30%. Electricity High places, 1KW high pressure sodium lamps appear extinction, short-lived, burning lamp holder phenomenon is not surprising. Due to the above reasons, the failure rate of the 1KW high-pressure sodium lamp in the high-pole lighting application is high, the user can not accept it, and even the high-bar lighting design that has been put into operation changes, and the 1KW lamp is replaced by the 400W lamp, which not only increases once. Sex investment also increases operating costs, because 400W high-pressure sodium lighting efficiency is only 120lm / w, and 1KW can reach 130lm / w, 2.7 盏 400W can replace a 1KW high-pressure sodium lamp to ensure the original design illuminance, this is a kind The way you can't do it.
A new type of light source--600W high-efficiency high-pressure sodium lamp is used as a high-beam illumination source. The lamp is produced by large companies such as Philips and Oslo GE. The main parameters are shown in Table (1). From the table (1) It can be seen that the luminous flux is up to 90,000 lm, the luminous efficiency is up to 150 lm/w, and the average life is 28,000 hours. The luminous efficacy and average life are much higher than the ordinary 1 KW high-pressure sodium lamp, the luminous flux is close, and the lamp operating current is only 5.8A. 1KW lamps and better 400W lamps (600W lamps with the same dimensions as 400W) can be installed and used without the above mentioned problems, which is more in line with China's national conditions. Table (2) is a comparison table of the power consumption cost of high-pole lighting operation using various light sources and different electrical appliances. It can be seen from Table (2) that 600W high-efficiency high-pressure sodium lamp is used as the high-beam illumination source under the same illumination. Operating electricity costs are the lowest, compared to the design with a 400W light source. It can save 6700-7000 degrees per year and reduce electricity costs by 2700-2800 yuan, which has good social and economic benefits. In Table (2) we recommend two kinds of 600W matching electrical appliances, NG600Z-F type ordinary inductive 600W high pressure sodium lamp ballast, ND600×2XL is a type of two-lamp JLZ600×2L ballast (LC lead The electric box of the peak type ballast) has the following advantages: the steady flow performance is good, because it is a CWA type ballast (LC peak lead ballast), so when the power supply voltage changes by ±10%, The lamp power variation is ≤15%, which is much superior to the inductive variation of ±26%, which is beneficial to ensure and extend the service life of the lamp. Light weight: NG600 ±2L ballast weight is about 9.0kg, while NG600Z-F is 6.5 kg, two ballasts are 13 kg and NG600±2L weighs about 4kg. It can save a lot of copper, iron materials and transportation packaging costs. . Energy saving: As can be seen from Table (2), the power consumption of the ND600±2L ballast is about 80W, the power consumption of the NG600Z-F is about 50W, and the second one is 100W, which can save about 20% of power, and if it is matched with a piece The smart board, NDND600±2L electrical box can automatically switch to the single lamp working state when a certain lamp is damaged, and automatically identify the damaged bulb, which is convenient for maintenance.
In short, the use of high-efficiency 600W high-pressure sodium lamp source in high-beam lighting is a kind of energy-saving and economical design, which will bring huge social and economic benefits.
