CIE published its "Guide on interior lighting" 2nd edition in 1986. Since then lighting practice
changed considerably, and it became necessary to prepare a new guide, this time as a CIE
Standard.
Good lighting requires equal attention to the quantity and quality of the lighting. While
the provision of sufficient illuminance on the task is necessary, in many instances the visibility
depends on the way in which the light is applied, the colour characteristics of the light source
and surfaces together with the amount of glare the system gives. In this standard opportunity
was taken to specify for various work places and task types not just the illuminance but also
the limiting discomfort glare and minimum colour rendering index of the source. Parameters to
create comfortable visual conditions are proposed in the body of this standard. The
recommended values are considered to represent a reasonable balance, having regard to the
requirements for safe, healthy and efficient work performance. The values can be achieved
with practical energy efficient solutions.
There are also visual ergonomic parameters such as perceptual ability and the
characteristics and attributes of the task, which determine the quality of the operator's visual
skills, and hence performance levels. In some cases enhancement of these influencing
factors can improve performance without the need to raise illuminance. For example by
improving the contrast of the task attributes, enlarging the task by the use of up to date visual
aids (glasses) and by the provision of special lighting systems with local directional lighting
capability.
The Standard provides guidance for illuminance, glare limitation and colour quality for
general building areas, agriculture buildings, the cement, concrete and brick industry, ceramic
and glass industry, chemical, plastics and rubber industry, electrical industry, food industry,
foundries and metal casting plants, hairdresser, jewelry manufacturing, laundries and dry
cleaning, leather industry, metal working and processing, paper industry, power stations,
printers, iron and steel works, textile industry, vehicle construction, wood working and
furniture industry, offices, retailing, restaurants and hotels, places of entertainment, libraries,
indoor public car parks, educational buildings, health care premises, airports, and churches.
| File Size : | 1
file
, 550 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Published : | 12/01/2002 |
