The high-pressure sodium lamp emit a golden white light, with luminous efficiency, significantly less electrical power consumption, extended services existence, through fog and luring etc. strengths. Widely used in street, highway, airport, dock, dock, station, square, street intersection, industrial and mining enterprises, parks, garden lighting and plant cultivation. Substantial shade high-pressure sodium lamp is primarily used in gymnasium, exhibition hall, amusement parks, department retailers and hotels and various destinations lighting. High pressure sodium lamp discharge materials vapor pressure is quite high, namely large atomic density of sodium, sodium atoms and electron collision between the quantity of regular, the resonance radiation broadening of spectral lines and other noticeable spectrum of radiation, so the high-pressure sodium lamp light color is better than that of reduced pressure sodium lamp. High pressure sodium lamp is actually a kind of high intensity fuel discharge lamp. Because of the negative resistance traits of fuel discharge lamps, when the lighting alone acquired the energy grid, the functioning state is unstable, together with the discharge procedure continues, it is going to lead to the circuit existing rises indefinitely, until the final light or circuit components and elements is movement burned V-I qualities.
High pressure sodium lamp together with other fuel discharge bulb, operate is arc discharge state, V-I characteristic curve towards the negative slope, i.e. lighting recent rise, and also the voltage applied to a bulb dropped. Under the ailment of frequent energy, in order to be certain the secure function of lighting, the circuit ought to be in series with optimistic resistance characteristics of your circuit parts to balance the negative resistance characteristics and steady operating latest and also the elements identified as ballast or restrict flow for. Resistors, capacitors, inductors, and so forth., are willing to be restricted to movement. Resistive ballast has the benefits of smaller size, cost low-priced, and high pressure sodium lamp supporting use will arise is difficult to start off, work resistance generates a higher heat, have larger room for heat dissipation and consumption electrical power is incredibly big, it is going to make the circuit lighting efficiency decreased. It can be generally used in the DC circuit, the usage of a hundred AC circuit within the light of your phenomenon of evident.
Magnetic ballast despite the fact that not as resistive ballast its consumption power, temperature rise is low, in the low frequency energy provide, charging the capacitor, pulse peak latest, lead to good harm for the electrode, lights flashing, affect the service daily life of your lamp bulb; perform in higher frequency circuit, voltage fluctuation can reach the ideal state, develop into an excellent ballast. Inductance ballast reduction is tiny, stable impedance, the impedance bacteria primality modest deviation, extended support daily life, stable lighting than resistive ballast good, present and high pressure sodium lamp supporting use of ballast are inductive ballast. Its down sides are larger than benzene and large charges. Moreover, electronic ballast has begun to appear, at current the selling price highly-priced, dependability is just not and the high-voltage sodium lamp is matched, except for particular events, under usual conditions are hardly ever used. Consequently, high pressure sodium lamp and lamp ballast series must be corresponding specifications in advance of use. High pressure sodium lamp lighting circuit is usually a nonlinear circuit, electrical power component is minimal, so inside the network contemplate a compensation capacitor is linked, so as to increase the energy factor of the network. Arc tube operation, large temperature and higher pressure sodium vapor corrosion is particularly strong,enerally sodium resistant glass and quartz glass are usually not competent for. As well as the translucent polycrystalline alumina ceramic tube arc tube entire body perfect. It not only has great resistance to substantial temperature and corrosion habits of sodium vapor and antibiotics, fantastic visible light through the potential. In addition, single crystal alumina ceramic tube on the overall performance of substantial temperature resistance, antibiotics sodium vapor corrosion and transmittance had been are superior to individuals of polycrystalline palpation of the alumina ceramic tube; due to the fact the price tag is expensive, so you’ll find rarely made use of. An arc tube is definitely the electrode, polycrystalline palpable aluminum ceramic this, cap, solder ring assembly with each other, adding sodium amalgam into sealing furnace sealing; with the identical time filled with a smaller volume of xenon, so that you can enhance the startup traits in the lighting.
Electrodes with large pure tungsten wire is coiled right into a spiral type, during the screw hole is inserted to the core rod, impregnation electron powder, then with the electrode core rod and the niobium tube closed ends are welded right into a whole. The polycrystalline alumina ceramic tube (HAT) is made from polycrystalline alumina ceramic powder by mixing powder, fountain spray drying, etc.. High pressure sodium lamp light, electrical parameters and arc tube diameter and arc length (distance in between the 2 electrodes) are closely linked,the porcelain lamp holder model is: E27 socket, E40 lamp holder.