Luminaire Lighting Unit Definition (2023)

Attention: Check with the local authorities in your own jurisdiction for specific lighting and electrical safety requirements. For small mirrors less than 30 inches wide, use about 75 watts of incandescent bulbs or 20 watts of warm white fluorescent bulbs on each side. For larger mirrors, use up to 150 watts of incandescent bulb or 40 watts of fluorescent on each side. Additional lights on top of large mirrors are also helpful. If you use fluorescent lamps, choose lamps with high CRI and warm color temperatures between 2700K and 3000K. These are usually used with a narrow point to provide bright, focused light on a small area. Slotted Wall Wash Trim is used to spray diffused light on large areas of walls or shelves. Non-directional A lamps or compact fluorescent lamps are well suited for this application. General recommendations for lamp power or type and spacing of recessed bulbs are given in Table 5-25.

For ambient lighting, choose a compact fluorescent lamp, lamp A or a wide flood with a beam angle of at least 50 degrees. The typical distance for ambient lighting with recessed lights is 6 to 7 1/2 feet for an 8-foot ceiling or 7 to 8 1/2 feet for a 9-foot ceiling. The distance between the first row of lights and the wall is half that distance. As a general rule, plan for one watt of incandescent bulb or one fluorescent bulb of 1/3 to 1/2 watt per square foot of floor space. Increase this by 50-100% for recessed fixtures, indirect lighting, or a room with dark surfaces. In a small bathroom, mirror lights can also provide ambient light. Our photo (left – DJF) shows how Frank Lloyd Wright used accent lights in the corners of the “bunker” at Taliesin West as part of a compendium of different lighting methods, all of which have been demonstrated in this room: direct, indirect, accent and rail lighting are all installed, creating different effects in this structure, which has no exterior windows (and was originally used for storage). Under the following links you will find descriptions of the four categories or lighting strategies with fixtures: work countertops, sinks and hobs all require a high level of lighting. When wall cabinets are available, under-cabinet lighting ensures excellent countertop lighting.

Place lights as close to the front of the cabinets as possible to avoid glare to the work surface (see Figure 5-23 above). Most manufacturers publish beam propagation data for their recessed luminaires with different equipment options. Beam deviations and illuminance levels for some common luminaires and lamps are shown in Table 5-26. A luminaire is defined in Article 100 as “a complete lighting unit consisting of one or more lamps and parts intended to distribute light, position and protect lamps and ballast (if any) and connect lamps to the power supply”. As luminaires (lighting fixtures) were not previously defined before the NEA 2002, this new definition is intended to cover all aspects of a lighting unit, including lamps that actually provide lighting and the internal and external parts necessary for the proper functioning of the unit. Lighting above the mirror only with spherical light bars, a pair of recessed downlights or a lighting soffit is acceptable as long as the top of the vanity has a light color. Otherwise, the areas under the eyes, nose and chin are in shadow. If recessed luminaires are used, choose an A lamp, flood lamp or compact fluorescent lamp for a diffuse beam. For effective general lighting, use one or more closed ceiling lights with a white diffuser that illuminates both the ceiling and the room below. In a very small kitchen, placing the ceiling light near the sink and countertop can also provide effective work lighting.

For example, many dining room chandeliers include a downlight that, in addition to the ambient lighting of the fixture, provides accent or table work lighting. Use of luminaires: Direct light, downlights, accent lights and indirect luminaires: This article describes the different types of luminaires and their use, including direct lighting, indirect lighting, downlights, accent fixtures, recessed luminaires, pot lamps, ceiling lights and wall luminaires or similar. For accent lighting, eyeballs and similar adjustable trim allow the owner to direct light at the illuminated artwork or architectural element (Figure 5-30). NOTE: This definition has been replaced by Addendum 4 ANSI/IES RP-16-17. Standard installation enclosures should remain uninsulated at the top. For insulated ceilings, use an “insulating contact” can IC. Also, make sure the chassis is classified as “airtight”, which is not true for all IC units. Air leakage from recessed lights can be a significant source of heat loss and moisture problems in cathedral ceilings. An alternative to lighting on countertops is to place a series of recessed fixtures directly above the outer edge of the countertop.

If used for work lighting, place the lights approximately 36 inches apart for 8-foot ceilings or 48-inch ceilings for 10-foot ceilings (see work lighting in Table 5-25). Definition of luminaire lighting: A luminous luminaire is a complete electric light in a physical container or device. Although not the most energy efficient, the recessed fixture has become a popular choice for kitchen lighting due to its stylish appearance and dramatic effect. For uniform lighting, use fixtures and lamps with a wide beam and spacing based on a 36-inch worktop (Figure 5-23 below). Understanding fixtures and lamps| Electrical Contractor Magazine[TITLE]Lighting | Set Luminaire to Dictionary.comLuminaire | Definition of luminaire by Merriam-Websterluminaire | Definition of luminaire in English by Oxford DictionariesLuminaire Definition and meaning | Collins English DictionaryLuminaire dictionary definition | defined luminaireDefinitions: luminaire – Dictionnaire de français Larousseluminaire – Wiktionary Good lighting on the bathroom mirror is crucial for shaving, makeup and other personal hygiene tasks. For optimal illumination, place light strips or light strips at least 16 inches long on each side of the mirror, centered 61 to 64 inches (about average eye level). Wall sconces on both sides are also an option for smaller mirrors. These provide uniform cross-sectional illumination without shadows or glare (see Figure 5-23). For a softer glow in a kitchen, indirect lighting can also work well with fixtures placed in bays and above cabinets to illuminate the ceiling.

We define the luminaires, contain a catalogue of direct and indirect lighting types and explain the use of downlights & accentuators. To reduce glare, which can be a problem with these high-efficiency reflectors, it is best to use a deep-profile Alzak coating, which is offered by most recessed luminaire manufacturers. For accent lighting, recessed room or rail luminaires, so that their light hits the wall at about 30 degrees. For lighting a large wall area, the distance between the luminaires must be equal to or less than their distance from the wall (see Figure 5-23). If you are lighting an individual image or object, use a beam lamp in a shielded light. Sinks, hobs, islands and countertops without overlying cabinets can be illuminated by small built-in downlights or rail lighting. Mini-suspensions with 12-volt halogen lamps provide an attractive and functional way to illuminate islands, peninsulas and food counters (Figure 5-23). For maximum light output of a recessed luminaire, use a transparent or gilded mirror reflector, also known as Alzak coating. Seen here: a lamp on the ceiling of a New York office.

Since this luminaire does not contain an integrated housing that would be used to accommodate the electrical connection, it is not considered a luminaire and an electrical box was required. At the bottom and top of this page: Glows in Frank Lloyd Wright`s Taliesin West, Scottsdale Arizona, first opened in 1937. Many of Taliesin West`s lights are light fixtures. Luminaires can be of the traditional type, such as incandescent or surface-mounted lamps, fluorescent lamps or other electric shock luminaires. Luminaires can also be of the non-traditional type, such as fiberglass with the light source in one place and the fiber core or “light guide” in another.

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