3 edition of IESNA approved method for life testing of low pressure sodium lamps found in the catalog.
IESNA approved method for life testing of low pressure sodium lamps
|Other titles||Illuminating Engineering Society approved method for life testing of low pressure sodium lamps., Approved method of life testing of low pressure sodium lamps., Life testing of low pressure sodium lamps.|
|Statement||prepared by the Subcommittee on Photometry of Light Sources of the IESNA Testing Procedures Committee.|
|Series||IES -- LM-60-01., IESNA lighting measurements series -- LM-60-01.|
|Contributions||IESNA Testing Procedures Committee. Photometry of Light Sources Subcommittee.|
|The Physical Object|
|Pagination||4 p. ;|
This Approved Method includes other technologies within the Metal Halide family including Ceramic Metal Halide and Pulse Start Metal Halide lamps. It addresses life testing of high intensity discharge lamps operated on auxiliary devices, either external or integrated, designed and certified to meet lamp industry standards and toler. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near nm.. Two varieties of such lamps exist: low pressure and high -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.
Low and high-pressure sodium lights are found in parking lots and areas where security is important. The lights require up to 10 minutes to start and are best used when they can stay on for hours at a time. There are several differences between low and high-pressure sodium lights. Description: States the methods of test to be used for determining the characteristics of low pressure sodium vapour lamps of the integral type, both U-shaped and linear, operating on .
For example, if the photopic luminance level is cd/m2 is then under a source with an S/P ratio like low pressure sodium (S/P of ) the equivalent mesopic luminance level would be cd/m2. If instead the source was a metal halide lamp with an S/P ratio of , then the mesopic luminance level would be cd/m2. This Philips bulb with ANSI code L72 uses 90 watts and volts. It has a BY22D base, and an average rated life of hours. It has a T21 lamp shape, and is an Lps 90 BULB. GE , Philips Brand: Philips.
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IES LM IESNA Approved Method for Life Testing of Filament Lamps [IES] on *FREE* shipping on qualifying offers. IES LM IESNA Approved Method for Life Testing of Filament Lamps. ANSI C Ballasts for high-intensity-discharge and low-pressure sodium lamps (multiple supply types) IES LM Approved method of life testing for high intensity discharge (HID) measurements of high intensity discharge lamps.
IES LM IESNA guide to lamp seasoning. Low pressure sodium lamps are excluded because a consensus for proper testing methods could not be reached. This Guide replaces the previous edition last published in See also LM, IESNA Approved Method for Photometric Testing of Outdoor Fluorescent Luminaires.
* Current Manufacturer Claims for life of LED is 50, hrs tohrs. Low end of projected life used for comparison purposes. ** LED fixtures to be cleaned only, no relamp required. ***Assumes a 25% failure rate for HPS luminaires and theoretical 10% failure for LED fixtur ****Savings shown as a positive number.
Energy Demand and Savings. life testing of low pressure sodium lamps: ies lem 7: lighting controls for energy management: ies lm intensity distribution measurement of luminaires and lamps using digital screen imaging photometry: ieee recommended practice for electrical safety in industrial and commercial power systems: ies dg Dusk to dawn luminaires or area security lights, for use in non-hazardous locations that are intended for installation outdoors on branch circuits of volts, using either a to watt mercury vapour, 50 to watt high pressure sodium (HPS) or metal halide, or 18 to 55 watt low pressure sodium (LPS) lamp, complete with a photoelectric controller.
The lamps are also physically large—about 4-feet long for the watt size—so light distribution from fixtures is less controllable.
There is a brief warm-up period for the lamp to reach full brightness. With a CRI of 0, low-pressure sodium lamps are used where.
Laboratory or Field Thermal Measurements of Fluorescent Lamps and Ballasts in Luminaires (Reaffirmed ) LM Approved Method: IES Standard File Format for the Electronic Transfer of Photometric Data and Related Information * LM Life Testing of Single-Based Fluorescent Lamps.
High Pressure Sodium Lamps may be used in open luminaires except for item (LUT7/ RSC) and SOX Low Pressure Sodium, which must be operated in an enclosed fixture. Standard LUMALUX Standard LUMALUX lamps are known for high efficacy, long life, and reliability.
Lamps are avail-able from 35 to watts in medium base and 50 to File Size: KB. High Pressure Sodium (HPS) lamps are not sensitive to burning position.
From the General Electric Lamp catalogue (p ), the rated life is 24,+ hours, which means that at 24, hours the testing ended with two-thirds of the lamps still burning. 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 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.
Low pressure sodium lamps were invented first in by Arthur H. Compton at Westinghouse. The first lamp was a round bulb with two electrodes on each side. The solid sodium metal remained on the bottom center of the bulb.
When heated up the metal would vaporize and the lamp would glow yellow. This approved method is a guide developed for the measurement of solid state lighting (SSL) products.
While many other standards for photometric mea- surements of light sources and luminaires are avail- able, these standards are separated for measure- ment of lamps or Size: KB. approved method: ies guide for the selection, care and use of electrical instruments in the photometric laboratory: ies lm life testing of low pressure sodium lamps: ies lm intensity distribution measurement of luminaires and lamps using digital screen imaging photometry: ies lm.
Decem For life: IES LM (IESNA Approved Method for Life Testing of General Lighting Incandescent Filament Lamps), except that it must be tested at volts regardless of its nominal voltage Life: ≥ 1, hours For colour rendering index (CRI): CIE (Method of Measuring and Specifying Colour Rendering Properties of Light Sources) Colour rendering index: ≥ 80 LM Life Testing of Low Pressure Sodium Lamps LM Identifying Operating Factors for Installed High Intensity Discharge Luminaires LM Laboratory or Field Thermal Measurements of Fluorescent Lamps and Ballasts in Luminaires LM Standard File Format for Electric Transfer of Photometric Data and Related Information* LM Photometric Measurements of Parking Areas LM Life Testing.
Illuminating Engineering Society of North America This is a preview of "IES DG". Click here to purchase the full version from the ANSI store. Rated Life Low-Pressure Sodium (LPS) Lamps. Illuminating Engineering Society of North America (IESNA) LM Approved method for photometric testing of indoor luminaires using high intensity discharge or incandescent filament lamps (reaffirmed in ).
Illuminating Eng. Soc. North by: 8. Average rated life is the number of hours at which half of a large sample of lamps has failed, which is the median life of the group.
The standard operating cycle for this test is 3 hours on, 20 minutes off. The Illuminating Engineering Society of North America (IESNA) defines this procedure in IESNA Approved Method for Life Testing of Fluorescent Lamps (IESNA LM).
Approved Method for Life Testing of High Intensity Discharge (HID) Lamps * Illuminating Engineering Society of North America (IES formerly abbreviated as IESNA) “American National Standard for High- Intensity Discharge and Low - Pressure Sodium Lamps, Ballasts and Transformers – Definitions (ANSI C).”.
American National Standard for Electric Lamps— Guidelines for Low-Pressure Sodium Lamps. Secretariat: National Electrical Manufacturers Association. Approved: Aug American National Standards Institute, Inc.Illuminating Engineering Society of North America.
IESNA Approved Method for the Electrical and Photometric Measurements of Fluorescent Lamps, LM New York, NY: IESNA. Illuminating Engineering Society of North America. IESNA Approved Method for Life Testing of Fluorescent Lamps, LM New York, NY: IESNA.A Wide Range of Wattages. Because of their high efficacy, long life and superior reliability, LUMALUX®.
standard and ECO® lamps are the preferred choice for any high pressure sodium application. And with multiple wattages and configura- tions, SYLVANIA LUMALUX standard and ECO lamps offer unmatched Size: KB.