GPI

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General requirements for light at construction:
•    Illuminate working area and streets at the construction with artificial light sources when daylight is not sufficient.
•    Adopt intensity and type of lighting to the various conditions of work and processes at the construction.

Requirements - Intensity of lighting:
•    The lighting equipment must fulfill the intensity of illumination of every particular working area at the construction (table 1).
•    Some working areas and activities at the construction have specific requirements (table 2).

Table 1:

Illumination Level for General Lighting

Table 2:

Illumination Level on Partial Surface for Certain Operations

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Requirements - Choice of lamps:
•    Assure a consistent illumination of all working areas. That include a regularly maintenance and cleaning of the lamp surface. Impurities reduce a consistent illumination.
•    Priority to lamps which have a wide band of radiation.
•    Installed lamps have to conform at least the IP23 standard.

Requirements – Arrangement of lamps (goal is a consistent illumination):
•    High positioning
•    Use of several lamps with relatively less power
•    Illumination of danger zones with extra lamps
•    Appropriate direction of the exposure of light
•    Avoiding of blinding.

Requirements – Special danger zones:
•    Special danger zones at the construction, e.g. areas with pedestrians and vehicles, require appropriate lighting that distinguish from the general illumination. One possibility could be the use of a different light color or a much more intensive light then the environment (at least double intensity) for danger zones.
•    If a breakdown of the general illumination at the construction might cause accidents, there has to exist a security illumination (at least 1lux).

Product to use as Construction Lighting: