A sodium vapor lamp is a lamp that uses sodium to create light. They have an efficiency of up to 190 lumens per watt compared to an incandescent street lamp which has between 15 and 19. They are heralded because of the quality of light they produce. The temperature of the amalgam is determined to a great extent by lamp power. They are commonly used in public parking lots, roadways, and other security areas. Pdf click on the lamp product number to view detailed lamp specifications click on the. Pdf modeling and checking the power quality of high pressure. When a high pressure sodium lamp is to be disposed, it is subject to the current epa toxicity characteristic leaching procedure tclp disposal criteria. Comparative study of 250 w high pressure sodium lamp. In a high pressure sodium vapor lamp, sufficiently small quantities of sodium and mercury are inserted therein so that all of the added sodium and mercury will be vaporized when the lamp is operated. Jul 08, 2011 sodium lamp can be divided into low pressure sodium lamp and high pressure sodium lamps. The xenon gas which is easily ionized, facilitates striking the arc when voltage is applied across the electrodes. Cleveland, oh 44112 usa less than 1% of the mercury in a high pressure sodium lamp is in vapor form and will be released if a lamp is accidentally broken.
The most efficient lighting sources available today are high intensity discharge hid and lowpressure sodium lps lamps. Philips lighting 344465 bd17 high pressure sodium lamp 100 watt e26 medium base 8550 lumens 21 cri 2100k ceramalux nonalto. Even though there may be room in low pressure sodium technology to extend its lifetime further, manufacturers can earn greater revenues with more modern light source technologies and for commercial reasons it is no longer interesting to invest effort in the further improvement of the low pressure sodium lamp. Mercmaster iii hid 50250 watt luminaires high pressure. High pressure sodium lights work by creating an electric arc through vaporized sodium metal, while additional materials and gases work to start the lamp and control the its color. Low pressure sodium vapor lpsv lamps are used in physics labs. High pressure sodium lamps, invented in 1931, use sodium in an excited state to produce light. Explosion proof type high pressure sodium vapor lighting fittings.
Instant restrike high pressure sodium dual arctube delivers 40,000 hours rated average life vs. Ultraviolet uv radiation occupies the portion of electromagnetic spectrum from 100 to 400. The sylvania lumalux family of clear and coated high pressure sodium lamps are ideally suited for street and area lighting applications where high efficiency and long life are desired but color rendering is not critical. The life of a mercury vapor lamp can be described in terms of its usable life or its rated life. High pressure sodium vapour hps lamps have an inner discharge tube made of translucent alumina that can withstand the corrosive effects of a mixture of mercury and sodium under greater pressure and higher temperature. Additional care is taken with each solution to ensure it has been engineered and then customized to minimize damage to the producing zone. It has a long life of up to at least 24,000 hours and is available in a wide range of bases and wattages. If outer glass bulb is broken, shut off power immediately and remove lamp after it has cooled.
Mercury vapor and metal halide luminaires are not available for purchase within the united states. All are nondirectional light sources, and all require a ballast for operation. Their arc tubes contain sodium, and the metal salt included is typically mercury. The higher the lamp power, the higher will be the amalgam temperature. Stationary natural gaslp hot water pressure washer industrys no. Abstract high pressure sodium vapor lamps due to long service life high light, as the most comprehensive street lighting and industrial lighting whose use is increasing day by day. Please check with your countries governing legislation regarding allowable lamp types before ordering. A low pressure sodium vapor lamp or lpsv lamp is termed as a miscellaneous discharge lamp as it possesses some characteristics of high intensity discharge hid lamps as well as it resembles fluorescent lamps in other areas. Pdf click on the lamp product number to view detailed lamp specifications click on the icon to the. Modeling and checking the power quality of high pressure sodium. Our friendly customer service staff can help locate hardto. Sodium retaining reservoirsprovide even distribution of sodium for 100% lumen maintenance, long lamp life and lamp wattage control.
High pressure sodium ballasts at because they are second only to low pressure sodium as the most efficient and longest lasting of all hid lighting sources, hps lamps are used in streetlights, parking lot lights and other outdoor lighting fixtures more than any other hid light source. Retrolux high pressure sodium replace mercury vapor with energy efficient hps. Sodium vapor lamp is the most energy efficient of all other lamps because it uses all its current to produce yellow light. Highpressure sodium lamps emit a broader spectrum of light than the lowpressure lamps, but they still have poorer color rendering. Product information high pressure and specification.
The mercury vapor raises the gas pressure and operating. Gk, general studies, optional notes for upsc, ias, banking, civil services. Each element type causes the lamp to have somewhat different color characteristics and overall lamp efficiency as described below. High pressure sodium vapor lamps for open and enclosed luminaires. High pressure lamps high pressure metal halide lamps high pressure sodium lamps low pressure sodium lamps high pressure quartz metal halide lamps ceramic metal halogen lamps philips hid lamps master citywhite cdoet ceramic metal halide lamp, with opalized ovoid outer bulb shape, used in outdoor offering pleasant white light.
Comfort high pressure sodium for improved color rendering. 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. The advantages of high pressure sodium lamps grasscity. The second group of gas discharge lamps, high pressure sodium vapor lamps, in addition to having a relatively good optical performance and brightness, they also have good color and for use in public places where color matching is important, and it does not find much to fit. Dec 25, 20 sodium vapor lamps are very effective in fog while fluorescent lamps produce little glare. Better efficiency, life and size are few of the advantages of hps lamp over lps lamp. Many lamp types currently offered, such as metal halide and high pressure sodium lamps, are physically interchangeable, but not electrically interchangeable.
The lamp produces a clarity of light that creates vivid color from objects illuminated by it. This highefficiency highpressure sodium vapor lamp is outstandingly economical. High pressure sodium lights are used for illuminating large outdoor areas. The following information is provided by ledvance, llc as a courtesy to its customers. With the exception of one hid lamp mercury vapor hid and lps lamps produce the most light per watt of any light source. The sodium is mixed with other impurities to create a. High pressure lamps have more components than low pressure and contain other substances such as mercury. One of the major drawbacks to these lamps is producing a lot of current harmonic. Clients can avail these lamps in pleasant colors and different light emitting capacities.
The lamp is an improvement over the lps lamp in that it has more acceptable color with the great efficiency of the sodium lamp. Basically, an lpsv lamp is a gas discharge lamp that uses sodium in an excited state to produce light. High pressure sodium lamps are one of the most efficient hid light sources available. Mesoptic street lighting demonstration and evaluation final report pdf. Mercury vapor lamps come in a variety of wattages ranging from 40750 w, and have. High pressure sodium ballast wiring diagram collection. Increasing arc tube pressure improves the colour appearance of reds, blues, and greens. Sylvania general lighting gidds685645 sylvania lumalux eco ecologic high pressure sodium lamp, et23. 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.
Sodium lamp performance is directly related to the gas pressure inside the arc cylinder. Lumalux super and sox lamp ratings are based on measurements at constant input voltage. Metal halide lamps do not require an ignitor to start, so the test for a failed ignitor for an hps lamp is to screw in a metal halide bulb of the same wattage and see if it starts. Generally, the vapor pressure is lower and the starting gas is ionized more easily with this configuration than it is with convention probe start metal halide lamps.
High pressure sodium lamp with clear tubular outer bulb. Sont son high pressure sodium philips philips lighting. Abstract high pressure sodium vapor lamps due to long service life high light, as the most comprehensive street lighting and industrial lighting whose use is. High pressure sodium hid bulbs light bulbs the home depot. A sodiumvapor lamp is a gasdischarge lamp that uses sodium in an excited state to produce. Benefits of high pressure sodium the main benefit of using hps is that they are the only light source with a similar efficiency.
All lamps should be switched off when not in use but hid lamps are commonly left on for long periods of time. 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. Low concentration hypochlorite solutions decompose slower than high concentration hypochlorite solutions. High pressure sodium lamps lighting associates, inc. Sodium gas discharge lamps can be distinguished in two main groups. The arc tube consists of frame and is highly pressured with sodium for better efficiency. 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. The vapor pressure of high pressure sodium lamps is more than 0. Abstract high pressure sodium vapor lamps due to long service life high light, as the most comprehensive street lighting and industrial. The ph has a significant effect on the stability of sodium hypochlorite solutions. High efficiency lamps are available and delamping may be a possiblity if an area is overlit. High pressure metal halide lamps high pressure sodium lamps. Sont is a costefficient and reliable solution in high pressure sodium.
If the mh lamp starts and a new hps lamp does not start, the ignitor probably needs to be replaced. Lowpressure sodium lamps are one of the most efficacious light sources. Typically these lights are used on sides of industrial buildings and in some street lamps. 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. All high pressure sodium lamps contain some amount of mercury.
There are two types of sodium lamps low pressure lps high pressure son. Get free 2day shipping on qualified high pressure sodium, hid bulbs products or buy lighting department products today with buy online pick up in store. Energy emission covers almost the entire visible spectrum, creating a bright white light that reflects all. Permission is granted to copy, distribute andor modify this document under the terms of the gnu free documentation license, version 1. It is mostly used in europe since it did not appeal in other markets due to its poor cri or color rendering.
Highpressure sodiumvapour lamp instrument britannica. Therefore, check the power quality of these lamps becomes necessary. Rarely will an application using high pressure sodium lamps be a candidate for a change to another light source. High pressure sodium lamps university of edinburgh. High pressure sodium fixtures in various sizes and finishes are also available. Choice of combined ballast or separate ballast type and four types lamp. Technology comparison dialight typical makeup of bulb material led high pressure sodium 3. The heat generated by the arc then vaporizes the mercury and sodium. May 22, 20 there are two types of sodium lamps lowpressure lps highpressure son. Lamps should be checked to be sure the proper lamp type is being used, according to the information on the label of the installed ballast. The vapor pressure of low pressure sodium lamp is at most a few pa. High intensity discharge lamps hid lamps are a type of electrical gasdischarge lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube.
Pdf high pressure sodium vapor lamps due to long service life high light, as the most comprehensive street lighting and industrial lighting whose use. Custom reservoir fluid solutions our reservoir fluid solutions help prepare, repair, cleanout and complete the wellbore. 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. Since the early 1970s, the high pressure sodium lamp, has become one of the most important light sources for outdoor lighting thanks to its high luminous efficacy about 140 lmw, good color rendering via its golden white color appearance and long lamp life 24,00032,000 h. It is known by its signature monochromatic yellow color.
An amalgam of metallic sodium and mercury lies at the coolest part of the lamp and provides the sodium and mercury vapor in which the arc is drawn. Hig hintensity discharge qualities high intensity discharge hid lamps include mercury vapor, metal halide, and high pressure sodium lamps. Venture quality lamps venture offersquality hps lamps that operate on our matching hps basllasts. Due to the long life, efficient energy usage and good vision, sodium vapor lamps are used for street lighting. Dec 14, 2011 the lamp has an arc tube made of lucalox. High pressure sodium hid lamps the high pressure sodium hid bulbs available at supply parking lots, construction sites, gymnasiums, and warehouses with a high intensity, yellowtoned light.
It uses mercury and sodium vapor combined to create a yellowpink light. Venture lightings high pressure sodium lamps hps lamps. This tube is filled with noble gas and often also contains suitable metal or metal salts. We also offer special conversion metal halide bulbs that can be used with fixtures intended for high pressure sodium light bulbs. Philipsmetalhalideallstartcdm lamps allwattagebis33620. High pressure sodium lamps or hps lamps electrical4u. Troubleshooting high pressure sodium lights hunker. In a high pressure sodium lamp, a compact arc tube contains a mixture of xenon, sodium and mercury. The lps lamp was the first sodium lamp to be developed.
These comes in 35w 55w and of philips ge osram make, imported. High pressure sodium lamps are the most efficient artificial white light source with about 29% of the energy used by the lamp producing light. The heavy duty transformer or ballast is also long lived if the bulbs are changed out before they burn out. The construction and applications of sodium vapour lamps. The arc tube of this lamp contains sodium and mercury. Sylvania brand high pressure sodium lamps, manufactured by ledvance, llc, are exempted from the requirements of the osha hazard communication standard 29 cfr 1910. Specifications from 10w to 1,000w wattage range, 1,000 to 25,000 lumens brightness range, 20v to 119v voltage range, and 10,000 to 40,000 hours average rated life. Oct 14, 2014 high pressure mercury gasdischarge lamp. High pressure sodium hps lamps, a member of the high intensity discharge hid lamp family, are the most efficient white light source commercially available. The birns corona is based on proven birns nuclear lighting technology and hid high pressure sodium vapor lamps. High pressure sodium lamps fall into this category. Hps lamp is the better version of its counterpart lps lamp. Other articles where high pressure sodium vapour lamp is discussed. The gas that is present is usually xenon, which is used for starting the lamp.
Sunlite 03620su lu150med high pressure sodium light bulb, 150 watts, ed17med, medium base e26, ansi code s55, 15000 lumen, 20000 life hours, clear, 2100k. This family of lamps contains some of the most efficacious lamps. Sox lamps are also known as polarimeter lamps used in physics lab. Dispose of in accordance with federal, state and local requirements. The rated life of these lamps is the number of hours they will continue burning. High pressure sodium bulbs to mercury vapor conversion. Westinghouse 37443 high pressure sodium light bulb. Sodium vapor lamps are some of the most efficient lamps in the world. Buy westinghouse 37443 lu150 high pressure sodium light bulb at. Us3248590a us263676a us26367663a us3248590a us 3248590 a us3248590 a us 3248590a us 263676 a us263676 a us 263676a us 26367663 a us26367663 a us 26367663a us 3248590 a us3248590 a us 3248590a authority us united states prior art keywords sodium lamp pressure mercury millimeters prior art date 19630301 legal status the legal status is.
High pressure vapour lamps electronic ignitors high. Can anyone tell me the general differences between these lamps and what application each one is best suited. Satco is a leading supplier of lighting products, with solutions for nearly every lighting market across the commercial, residential and industrial landscape. It can come in a high pressure or low pressure format.
Highpressure sodiumvapor lamps request pdf researchgate. Also, the lamp can produce a suitable arc voltage by. High pressure sodium lamp hps lamp the hps lamp is the most ubiquitous lamp for street lighting on the planet. 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. Mercmaster iii hid 50250 watt luminaires high pressure sodium, pulse start metal halide and metal halide.
Some white mercury vapor lamps have phosphor coatings and have. Components the arc tube contains the xenon and sodium mercury amalgam mixture and provides. Due to the limited luminous efficacy and color rendering of highpressure mercuryvapor lamps, novel lamp types were needed to increase the energy efficiency as. The spectrum of light there are other factors in choosing an electric lamp. Contains easytounderstand explanations and examples for commercial and industrial energy technologies. High pressure mercury vapor lamps are those lamp commonly used.
Modeling and checking the power quality of high pressure. Soxe lamps are distinguished by the use of the black bases compared to the tan bases used on sox lamps. The high pressure sodium bulbs are a handful of these bulbs. This test is used to determine if an item can be managed as hazardous. Jan 17, 20 led lighting vs hps all you need to know 1.
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