EN November ICS English version. Light and lighting - Lighting of work places - Part 1: Indoor work places. Lumière. Peter Thorns · Head of Strategic Lighting Applications. EN Light and lighting – Lighting of workplaces. Part 1: Indoor work places. EUROPÄISCHE NORM. EN July ICS ; English Version. Lighting of work places - Part 2: Outdoor work places.
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room regularly can be evaluated with the. UGR method, as specified in the standard. EN “Lighting of indoor workplaces”. However LED luminaires with. Guide-DIN-ENpdf - Download as PDF File .pdf), Text File .txt) or read online. This is also replicated in BS EN Light and lighting - Lighting of work places - Part 1: Indoor work places. A sample is shown below. Illuminance.
The visual performance required for the visual task is determined by the visually relevant ele- ments size of objects. It needs to be at least 0. The task reference surface can be horizontal.
The task area is defined as the area in which the visual task is carried out. In very large rooms where work stations are occasionally or regularly not manned e. For immediate surrounding areas and requirements of ASR A3. Uniformity requirements of ASR A3. It should be seen as a strip at least 3. This work station areas and from there extends to the walls of means that a value of 0.
This means that uniformity requirements are always higher for the surrounding area and sometimes higher for the Illuminance uniformity work station area than for the equivalent areas in DIN EN The tables in section 5. When the task area is known. Another ASR requirement is that the adjoining surrounding area should extend to the walls of the room or to adjacent circulation routes.
DIN EN ? The surrounding area borders directly on one or more When limits are quantified. Guide to DIN EN Indoor workplace lighting Defining the task area and the immediate surrounding Task area corresponds to work station area area gives the designer the freedom to create a light- ing design based on the visual requirements for a particu- In ASR A3.
For illuminances up to lux.
The uniformity required in the area. DIN EN adds an extra decimal place for greater accu- racy: The work station is made up of work space. For the sake of simplicity. It needs to be remem- as the work station area. Work station area: Added  Office work station area: If that is the case. It needs to be ensured that no 04 part of the work station area projects into the strip. How big is a work station area in an office?
In the case of a whiteboard. Typical dimensions: Visual tasks may also be vertical or inclined. They can be grouped to form an area of the work station. Illuminance needs to be determined according to the angle of inclination. Work station Surrounding area: Strips in which the approximate arrangement of work stations and therefore the location of task areas are work stations and therefore the location of task areas is unknown at the design stage.
The rest of the room less the ig. A work station area in- cludes desktop surface s and user space. The surround- ing area is taken to be the rest of the room less a 0.
The working plane is assumed to be 0. Uniformity within the work station area should be 0. Uniformity is 0. In the case of boards. A strip extending to each side of the board at a writing height of 1. Uniformity over the entire work surface should be 0.
No requirements are specified for individual student desks. These requirements for compliance with ASR A3. The minimum values are comparable at 30 lx and 40 lx respectively.
Corridor In corridors. The vertical task area reference surface starts 0. Visual tasks here include doors. Uniformity on the reference surface is 0.
For corridors up to 2. Shelving systems and other vertical surfaces Shelving systems and cabinets need to be regarded as vertical task areas if visual tasks need to be performed there over an extended period of time e. ASR A3. DIN EN stipulates lx with 0. In wider corridors. The surrounding area forms a strip around it at least 0. If the individual visual tasks are comparable. Single industrial work station The visual tasks performed at an industrial work station are often numerous and diverse.
To ensure that enough light is available for all the workplaces in the 1 bay. They need to be defined individually in terms of location and size. The immediate surrounding area forms a band around the work station area at least 0. For the other task areas with different requirements. Where this is the case.
Industrial bay with zones for different activities Industrial bays generally incorporate a number of task areas with diverse illuminance requirements.
Reference surfaces are for rooms and areas work station. This is achieved by appropriate luminaire geometry reference surface level and the right choice of beam characteristics. Calculation grid for the design. For the precise definition of a calculation grid. This is unless task areas are located within the strip or extend into it.
In some enclosed spaces e. To avoid gloom. Like the revised standard. For bright. Recommended reflectance for the major diffusely reflect- ing room surfaces: This is achieved by taking account of the luminance of all surfaces. Uniformity is required to be higher than 0.
Bright rooms ASR A3.
In places where good visual communication is crucial. DIN EN specifically points out the need to avoid multiple shadows. For some work environments.
The use of cylindrical rather than semi-cylindrical illuminance is thus justified by the consider- ably lower planning effort required. As a rough guide.
This light is needed to highlight objects. Why is cylindrical illuminance a measure for Vertical illuminance in the interior space illuminating faces? Mean vertical illuminance needs to be appropriate for the visual task Semi-cylindrical illuminance on the side of the face directed towards and work performed.
Maintained illuminance must be no lower than 50 lx. In both cases. In addition to task lighting. It expresses the balance be- room. Lighting in the interior space DIN EN stresses the importance of quality of lighting in the interior space. Directional light can emphasise details of a visual task.
Lighting of work places Part 1: Indoor work places
Rough work. UGR tables are available in page 37 ff. UGL category e. Glare which is found disturbing. UGR values can be ascer- pendix 4: The follow- ing are examples of maximum limits: For initial luminaire selection.
Glare which causes direct impairment of vision is known as disability glare. This may be useful for designing installa- computer work. For luminaires that are open from below or fitted with a clear enclosure. They do not apply to luminaires with only a top-side light exit opening or to luminaires mounted below eye level. LEDs Because they can be set up at any angle in any luminaire luminances up to 3.
In such cases. Highly re- on light background. What is more. Two limits are specified for or. Because display radiation plane.
Accord- ingly. For compliance with ASR A3. The anticipated decline of luminous flux depends on the choice of lamps. Lighting installation maintenance With increasing length of service.
Guide-DIN-EN-12464-1 - 2011
To ensure that a specific lighting level — expressed by maintained illuminance — is reached for a reasonable period of time. Luminaire maintenance factor LMF: Schulz cleaning intervals and the cleaning techniques used. Frankfurt environment and Room: T16 High Output Watt rating: EB Lamp maintenance in years: ZVEI publication: Appendix 5: LSF standard average value curves e. It would be unrealistic to assume that lamps need to be replaced before the end of their rated economic life.
Frequent cleaning of lighting installations is also rarely a reality. Lamp life behaviour differs widely. Many lamps have a long life. It is therefore advisable to assume longer maintenance intervals and choose a reference maintenance factor that ensures lighting installation operation stays above specified maintained values even after years of use with long-life lamps. For example: Maintenance factor and total cost Lighting level not observed Maintenance factor 0.
The following charts show how the individual parameters impact on maintenance factors. Where installations are designed for a high initial value and long maintenance intervals.
When the installation is new and each time maintenance is carried out. If illuminance is kept constant at a level just above the planned value. Maintenance New-value Example factor factor 0. A maintenance factor of 0. High bay down. High bay downlighter with high-pressure metal halide The figures are in line with CIE 97 and data provided by lamp lamp and luminaire manufacturers.
The maintenance cycles assumed are realistic. Solution b plications.
Contact and Service
Appendices 9. Colour rendering requirements have been adjusted in a few cases. Type of area Em Ra Traffic zones inside buildings 5. Type of area Em Ra Circulation routes 1. In all other cases. The arithmetic mean of all the ribbon. Calculation grid Experience has shown that the following grid size p For non-rectangular reference surfaces.
Arithmetic means and uniformities are again deter- smaller. Where the reference surface has a length-to-width ratio between 0. The number of points is then given by the basis for determining grid size. The work station is made up of work space, movement space and all ancillary space used for work-related tasks see Fig. For the sake of simplicity, this Guide generally refers only to the work station area. Another ASR requirement is that the adjoining surrounding area should extend to the walls of the room or to adjacent circulation routes.
Defining the task area and the immediate surrounding area gives the designer the freedom to create a lighting design based on the visual requirements for a particular activity within a given space. It needs to be remembered that some visual tasks may extend over large areas.
The designer is thus required to document the size and location of the task area s. When the task area is known, the lighting installation needs to be modified to achieve the relevant illuminance levels required. For illuminances up to lux, maintained illuminance needs to be observed across the work station area; for illuminances over lux, it should be observed on the work surface. The surrounding area borders directly on one or more work station areas and from there extends to the walls of the room or to circulation routes.
In very large rooms where work stations are occasionally or regularly not manned e. It should be seen as a strip at least 3. The maintained illuminance required for surrounding and where applicable background areas depends on the requirements that need to be met in the work station area.
Illuminance uniformity The tables in section 5. For immediate surrounding areas and background areas, the stipulated uniformity Uo is 0.
BS en 12464-1 Lighting Levels
When limits are quantified, the figures are normally rounded. This means that a value of 0. DIN EN adds an extra decimal place for greater accuracy: 0. Uniformity requirements of ASR A3. The uniformity required in the surrounding area is 0. This means that uniformity requirements are always higher for the surrounding area and sometimes higher for the work station area than for the equivalent areas in DIN EN immediate surrounding area and task area. Work station lighting should be designed to meet the uniformity requirements of ASR A3.
Work station area: min. Typical dimensions: 1. Visual tasks may also be vertical or inclined. They can be grouped to form an area of the work station, which generally encompasses a horizontal surface see also Fig. Task areas on vertical or inclined surfaces should be considered a work station area if the visual tasks performed there require more than just brief attention. Illuminance needs to be determined according to the angle of inclination.
In the case of a whiteboard, for example, vertical illuminance should be used. Illuminance calculations for work station areas and surrounding areas can ignore a marginal strip extending 0. It needs to be ensured that no part of the work station area projects into the strip. If that is the case, the marginal strip may not always be ignored at the point s in question see also Fig.
The minimum dimensions of an office desk are 1. Added to this are movement space and ancillary space DIN In many cases, the actual size of furniture is unknown at the time of planning. It is recommended that the work station area should be assumed to be 1. Ofces Offices can accommodate one or more work stations in known or unknown arrangements.
A work station area includes desktop surface s and user space. The working plane is assumed to be 0. The surrounding area is taken to be the rest of the room less a 0. Where planning documents show work stations close to windows, a correspondingly wide strip can be taken as the work station area. The rest of the room less the ignored 0.Task areas on vertical or inclined surfaces should be considered a work station area if the visual tasks performed there require more than just brief attention.
Defining the task area and the immediate surrounding area gives the designer the freedom to create a lighting design based on the visual requirements for a particular activity within a given space. Uniformity is required to be higher than 0. Accord- ingly. Work station lighting should be designed to meet the uniformity requirements of ASR A3. The task reference surface can be horizontal. April — Part 6: It is obvious analyzed position.