It is still widely used in certain cities like bogota, san diego, and some european cities. High pressure sodium lamp hps lamp the hps lamp is the most ubiquitous lamp for street lighting on the planet. This is a philips low pressure sodium lamp rated at 180 watt and produces 32,000 initial lumens of light. Ges high intensity discharge lamps hids share a number of important. Lowpressure sodium lamp synonyms, lowpressure sodium lamp pronunciation, lowpressure sodium lamp translation, english dictionary definition of lowpressure sodium lamp. Dec 06, 2011 the low pressure sodium lamp is also known as an lps lamp. When a high pressure sodium lamp is to be disposed, it is subject to the current epa toxicity characteristic leaching procedure tclp. Philips 400watt ed18 high pressure sodium hid light bulb 1bulb. Philips ceramalux 150watt high pressure sodium hid light bulb is an efficient lighting solution for industrial applications such as warehouses, post top lights and parking lots. In recent years, increasing competition from other discharge lamps is resulting in a slow decline in its market, but it continues to be specified for new installations. May 22, 20 there are two types of sodium lamps lowpressure lps highpressure son. Lowpressure sodium lighting is a monochromatic source and is often rejected for its deficiency in supporting color. High pressure sodium lamp high power factor electronic ballasts using acac converters article pdf available in ieee transactions on power electronics 223. The type of lowpressure sodium lamp referred to as sox did not appear until the early 1960s.
Lowpressure sodium lamps operate much like fluorescent lamps and require ballast. Low pressure sodium lamp synonyms, low pressure sodium lamp pronunciation, low pressure sodium lamp translation, english dictionary. Standard lumalux standard lumalux lamps are known for high efficacy, long life, and. In a high pressure sodium lamp, a compact arc tube contains a mixture of xenon, sodium and mercury. There is a brief warmup period for the lamp to reach full brightness. Dispose of in accordance with federal, state and local requirements. This design could offer a pfc feature therefore the main advantage of such topology is high reliability due to merging the two. Increasing arc tube pressure improves the colour appearance of reds, blues, and greens. Warnings,cautions and operating instructions for ceramalux high pressure sodium lamps ceramalux high pressure sodium lamps low total cost of ownership long lifeup to 24,000 hours high efficacy up to 140 lpw. Since its commercial introduction in 1932, the low pressure sodium lamp has consistently maintained its enviable position as the most efficient light source available. The lowpressure sodium lamp is also known as an lps lamp. American national standard for electric lamps performance specifications for direct replacement led light emitting diode lamps american national standard for lamp ballastsballasts for highintensity discharge and lowpressure sodium lps. Even though they emit a yellow light, a lowpressure sodium lamp should not be confused with a standard highpressure sodium lamp, which is a high.
Luminaire the luminaires shall be suitable for attachment by means of a. Sodiumvapour lamp, electric discharge lamp using ionized sodium, used for street lighting and other illumination. High pressure sodium lamps or hps lamps electrical4u. There are several differences between low and highpressure sodium lights. A sodiumvapor lamp is a gasdischarge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm two varieties of such lamps exist. Low pressure sodium lamps operate much like a fluorescent lamp and require a ballast. The arc tube of this lamp contains sodium and mercury. The data acquisition and analysis platform is based in compactdaq ni. Highpressure sodium lamps also known as hps lamps or hps lights are a type of sodium lamp that is widely used in industrial lighting and many public outdoor areas. Philips 234047 18watt t15 soxe18 low pressure sodium hid. Because their construction and performance is in many ways different, they are dealt with in two different. Low pressure sodium lamps were invented first in 1920 by arthur h. It arrived safe and sound, very well cushioned in brown paper. High pressure metal halide lamps high pressure sodium.
High intensity discharge hid lamps current ge current. American national standard for electric lampshighpressure. Figure s42 a 500 dekalumen selfstarting low pressure sodium lamp. There are two types of sodium lamps lowpressure lps highpressure son. While these lamps are highly energyefficient they are rarely used because all objects under their light appear to be yellow or yellowgray. Lumalux super and sox lamp ratings are based on measurements at constant input voltage. High pressure sodium lamp is usually a quite high luminous efficiency of the light supply, its efficiency is often up to a hundred lm w, sodium lamp is divided into two sorts of higher pressure and reduced stress sodium lamp. The spectral power distribution of the low pressure sodium lamp 24. Lowpressure sodium lamps have the highest efficacy of all commercially available lighting sources. The following information is provided by osram sylvania as a courtesy to its customers. They are vibration resistant and are ideal for roadways, bridges and tunnels, security lighting, area flood lighting, railway crossings and airport lighting. What are the advantages and disadvantages of high pressure. Satco is a leading supplier of lighting products, with solutions for nearly every lighting market across the commercial, residential and industrial landscape.
Low pressure sodium lamps have the highest efficacy of all commercially available lighting sources. Lowpressure sodium lamps are highly efficient electrical light sources, but. Low and highpressure sodium lights are found in parking lots and areas where security is important. The better color rendering comes with a bit of sacrifice, it has less efficiency than the lps. Lowpressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor lighting, such as street lamps, where they are. The mercury vapor raises the gas pressure and operating. Venture lightings high pressure sodium lamps hps lamps. Figure s37 a 500 dekalumen selfstarting low pressure sodium lamp. Lamptech museum of electric lamp technology sox low pressure sodium.
Low pressure sodium light has a number of very unique properties arising from its spectral output, many of which make it technically the most suitable light source for road lighting and these are covered in detail on the next page. In addition, the large physical size of the lamp means that it has a low surface luminance so it is less likely to give rise to glare, and the low operating. For lowwatt fluorescent lamp, the electronic ballast industry and markets have. High pressure sodium lamps shall have a mogul base, a 24 000 average rated life hours at 10 hours per start, and a lamp burning position as required by the luminaire and lamp manufacturers. In both ratings the discharge tube is folded into a short ubend made from wide bore tubing. The heat generated by the arc then vaporizes the mercury and sodium. A wide variety of low pressure sodium lamp options are available to you, such. Lets look at some viable options for replacement for high pressure sodium fixtures. Each limb of the discharge tube contains an isolated wire, encapsulated over most of its length.
The very yellow color does not attract insects but it distorts colors. Click on the icon to the right to download the latest version of adobe. The first lamp was a round bulb with two electrodes on each side. Import data and price of sodium light under hs code 8539.
Sylvania brand low pressure sodium lamps are exempted from the requirements of the osha hazard communication standard 29 cfr 1910. All lumalux lamps have a leadfree, borosilicate hard glass outer jacket, and most mogul base lamps have welded leadfree bases that allow a maximum base temperature of 250c 40f higher than. Pdf click on the lamp product number to view detailed lamp specifications. Sodium retaining reservoirsprovide even distribution of sodium for 100% lumen maintenance, long lamp life and lamp wattage control. A wide variety of low pressure sodium lamp options are available to you, such as bulb type, application, and certification. Commercially available white leds combine a lightemitting semiconductor with. Lowloss om series choke with thermal overload protection. They have an efficiency of up to 190 lumens per watt compared to an incandescent street lamp which has between 15 and 19. High pressure sodium lamps, invented in 1931, use sodium in an excited state to produce light. About 20% of these are high pressure sodium lamps, 67% are ballasts, and 6% are street lights. While hid lighting covers a broad scope of lighting the most common lamps are metal halide, mercury vapor, and high pressure sodium. High pressure metal halide lamps high pressure sodium lamps. Low pressure sodium lamps take a few minutes to warm up to full brightness. Contains easytounderstand explanations and examples for commercial and industrial energy technologies.
They are commonly used in public parking lots, roadways, and other security areas. Ordering code bulb soxe 18 t17 sox 35 t17 sox 55 t17 sox 90 t21 sox 5 t21 sox 180 t21. Low pressure sodium bulbs produce light in a very narrow, yellow region of the visible spectrum. Low pressure sodium lamps sox low pressure sodium lamp with high luminous efficacy leading to low energy consumption. Sodium gas discharge lamps can be distinguished in two main groups. The lamp is an improvement over the lps lamp in that it has more acceptable color with the great efficiency of the sodium lamp. Supply units for highpressure sodium lamps and metal halide lamps. High pressure sodium lamp with clear tubular outer bulb. Philips lighting company lamp material data sheet lmds.
We offer hightest quality, perfect syncronisation of the different components and a single point of contact for the entire process of. This test is used to determine if an item can be managed as hazardous. Comparative study of 250 w high pressure sodium lamp operating. Philips highintensity discharge hid 18watt low pressure sodium sox t15 light bulb offers high energy efficiency for indoor and outdoor applications. Product information high pressure and specification.
Low pressure sodium lamp is a kind of low pressure sodium vapor discharge tube, inner tube with special anti sodium glass blown, and can radiate 5890a, 5896a sodium line, can be used as a monochromatic light source optical. Sodium lamp performance is directly related to the gas pressure inside the arc cylinder. All high pressure sodium lamps contain some amount of mercury. Lowpressure sodium lamps are one of the most efficacious light sources. Low pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor lighting, such as street lamps, where they are widely used. Lumen rating sylvania high pressure sodium lamps, with the exception of lumalux super and sox lamps, are based on burning cycles of at least 10 hours per start and ballasts which meet ansi standards. A discharge tube made of a exclusive glass is created of a particular glass while in the glass case, and the tube is full of an appropriate quantity of. In case of a lamp breakage a certain quantity of mercury will be released.
Low pressure sodium lamps require a number of parts each working in tandem for the lamp to produce light. Low pressure sodium lamps soxe and sox warmup characteristics effects of input voltage variations lamp volts lamp current lamp watts light output lamp volts lamp current lamp watts light output. The uniform sodium distribution in the discharge tube is achieved by means of dimples for a more stable discharge, higher efficacy and better lumen maintenance and lamp life. The xenon gas which is easily ionized, facilitates striking the arc when voltage is applied across the electrodes. There is an arc tube with neon gas that initially makes the lamp have a red color to it. When heated up the metal would vaporize and the lamp would glow yellow. A sodium vapor lamp is a gasdischarge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm two varieties of such lamps exist. A low pressure sodium vapour lps lamp contains an inner discharge tube made of borosilicate glass that is fitted with metal electrodes and filled with neon and argon gas and a little. High pressure sodium hid bulbs light bulbs the home depot. Low and high pressure sodium lights are found in parking lots and areas where security is important. Since the early 1970s, the high pressure sodium lamp, has become one of the most. These bulbs have a long rated life and high efficency, but virtually no ability to render color. Ge ecolux high pressure sodium hps lamps deliver low operating costs. A high pressure sodium vapor lamp a sodium vapor lamp is a gasdischarge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.
The solid sodium metal remained on the bottom center of the bulb. Dual arc tubes for instant restrike and twice the life. Sodium vapour lamp, electric discharge lamp using ionized sodium, used for street lighting and other illumination. High pressure sodium lamps fall into this category. Venture offersquality hps lamps that operate on our matching hps basllasts. Low pressure sodium lamp synonyms, low pressure sodium lamp pronunciation, low pressure sodium lamp translation, english dictionary definition of low pressure sodium lamp. Low pressure sodium lamp definition of low pressure sodium. Monochromatic yellow colour with nonexistent colour. It has a dc bayonet base by22d and does require a l74 ansi code ballast to operate. Check out these low pressure sodium sox bulbs at from top brands.
Low pressure and high pressure sodium vapour lamp gktoday. Because their construction and performance is in many ways different. Low pressure sodium lamps are used in outdoor lighting of some parking areas and bridge underpasses. There are several differences between low and high pressure sodium lights. Lowpressure sodium lamps operate much like a fluorescent lamp and require a ballast. Sylvanias range of high pressure sodium lamps are erp compliant and combine excellent. American national standard for electric lamps performance specifications for direct replacement led light emitting diode lamps american national standard for lamp ballastsballasts for highintensity discharge and lowpressure sodium lps lamps multiplesupply type. Product safety data sheet osram sylvania light bulbs. The term sox indicates a lowpressure sodium lamp with the lamp tube bent into a ushape, and with a metaloxide glass coating which we will come to in a moment. A highly energyefficient electric lamp containing a small amount of sodium, neon, and argon, used in generating yellow light for lighting. And with multiple wattages and configurations, sylvania lumalux standard and eco lamps offer unmatched versatility.
A lowpressure sodiumvapour lps lamp contains an inner discharge tube made of borosilicate glass that is fitted with metal electrodes and filled with neon and argon gas and a little metallic sodium. Noncycling high pressure sodium lamp with up to 40,000 hours life. This monochromatic lamp will be used for science demonstrations. Lowpressure sodium lampsproducing up to 180 lumens per watthave the highest efficacy of all commercially available lighting sources. When current passes between the electrodes, it ionizes the neon. The main lamp electrodes are of similar construction to the modern low pressure sodium lamps, but consist of an axial single coil of tungsten wire instead of the present beehive shape coil of triplecoiled wire. Pdf in this paper, several high power lighting networks based on high pressures sodium hps lamps with rated lamp. Led sox lamp 100 watt replaces 180w lps bypass ballast 11,580 lumens 2200k. Blv offers single components as well as complete top lighting systems with luminaire, power supply and lamp. The construction and applications of sodium vapour lamps. A lowpressure sodium lamp is shown in the image below.
Lamptech museum of electric lamp technology sox lowpressure sodium. The gas that is present is usually xenon, which is used for starting the lamp. When a high pressure sodium lamp is to be disposed, it is subject to the current epa toxicity characteristic leaching procedure tclp disposal criteria. The lights require up to 10 minutes to start and are best used when they can stay on for hours at a time. Quantity the base bid shall include the indicated number of low pressure sodium lps luminaires 55w complete with internal ballast and 55 watt lps lamp wired and erected as hereinafter specified. Even though they emit a yellow light, a lowpressure sodium lamp should not be confused with a standard highpressure sodium lamp. Sodium vapor lamps are some of the most efficient lamps in the world. Lamp disposal procedures normal precautions should be taken for the collection of glass particles in the event a lamp is broken. Mar 10, 2020 high pressure sodium lamps also known as hps lamps or hps lights are a type of sodium lamp that is widely used in industrial lighting and many public outdoor areas. Even though they emit a yellow light, a low pressure sodium lamp should not be confused with a standard high pressure sodium lamp.
The om pak supply units from tridonic combine choke, ignitor, p. The lamps are also physically largeabout 4feet long for the 180watt sizeso light distribution from fixtures is less controllable. I can confirm the wh2120c fulham workhorse 2 ballast works well with this lamp. Soxe lamps are distinguished by the use of the black bases compared to the tan bases used on sox lamps. It has a long life of up to at least 24,000 hours and is available in a wide range of bases and wattages. Lowpressure sodium lamp definition of lowpressure sodium. Low pressure sodium lighting flagstaff dark skies coalition. Low pressure sodium lamp definition of low pressure. A sodiumvapor lamp is a gasdischarge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.
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