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> Indoor lighting / Specific lighting requirements / Lighting of educational facilities / Examplary refurbishment
The comparison of an old lighting installation (old installation) of standard class with opal diffuser luminaires and three alternatives for a new lighting installation demonstrates the photometric and energy-related advantages of modern lighting technology (see table as well as figure and figure).
The calculations are based on 1.400 hours of operation per year. This is the period of operation for a school based on the user profile documented in standard DIN V 18599-10 (see chapter “Light and the environment”), where no additional use of rooms for adult education or other purposes is necessary, meaning e.g. for an elementary school. When factoring in the relative absence mentioned in the user profile in addition to that via electronic presence detection, the lighting is turned off over a statistical average of 23,75% of the period of operation (new installation 2). Further savings facilitated by daylight-dependent regulation are also treated like a reduction in operating hours (full load hours) in the standard (new installation 3).
Table 3.123: Example for the energy-related advantages of new lighting installations in training facilities compared to dated-technology installations (table on the refurbishment example 5.10.10)
Figure 3.150: Power costs for the old installation compared to the 3 new installation variants (see table above)
Figure 3.151: Composition of lighting costs: installation (blue), lamp and maintenance (yellow) and energy (red)
Economic efficiency Photometric requirements according to EN-12464-1
Visual task area General lighting Additional lighting Note-taking lighting Maintenance factor Lecture halls Nursery schools, play schools Adult education Special-needs schools Economic efficiency Exemplary refurbishment Photometric requirements according to EN-12464-1
Introduction Visual needs Need for orientation Non visual needs
Guidelines Overview Work places Visual task area Surrounding area Illuminance Luminance distribution Limitation of glare Lighting direction, modelling Aspects of colour Flicker and stroboscopic effects Daylight
Maintenance Factor Light and safety at work Light and non-visual effects Light and economy Light and environment Lighting design Lighting measurement Emergency lighting
Lighting of traffic zones and geneal areas in buildings Lighting of industrial activities and crafts Lighting of offices and VDU workstations Lighting of design and CAD offices Lighting of sports facilities Lighting of health care facilities Lighting of geriatric care facilities and nursing homes Lighting of public areas Lighting of salesrooms Lighting of educational facilities Lighting of traffic areas Lighting of car parks Ligthing of further indoor spaces
Luminaires The enhanced concept of quality Photometric classification Photometric properties Photo biology safety Mounting and electrical connection Luminaire labelling Luminaire operation LED luminaire operation Operation of FL luminaires Electrical safety Fire protection Electromagnetic safety Mechanical safety Chemical and miscellaneous impact Acoustic properties Ventilation properties
Firehazardous locations Room with bathtubs and showers Swimming baths Exterior installations Agricultural and gardening plant locations Food industry Clean rooms Requirements on mediacal rooms Emergency light installations
Luminaire selection chart
Light management application and function Presence detection Daylight-dependent regulation Interfaces Building management, KNX and other bus systems
Light sources types Characteristics of light sources
ABC, DF, G, ILM, NO, P, QRSUV, W
Subject index
StandardsGuidelines and instructionsEuropean directives and regulationsFurther publications
Lighting societies
Standardisation institutes
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