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The application of light storage self-luminous signs in fire engineering(1)

Views: 115     Author: Site Editor     Publish Time: 2021-11-05      Origin: Site

Article 1028 of the "Fire Code for Building Design" stipulates that the evacuation aisles and main evacuation routes of the dance and entertainment venues, underground stores and the ground or the wall near the ground should be set up with luminous evacuation signs. The design of high-rise civil building fire code "Article 415: high-rise buildings in the dance and entertainment venues, underground stores and other major evacuation routes of the ground or near the ground wall, should be set up luminous evacuation signs.


The above specification states: "This article refers to the 'luminous evacuation signs' including electroluminescent type (such as light type, electronic display type, etc.) and photoluminescent type (such as light storage self-luminous type, etc.). These evacuation signs are suitable for dance and entertainment screening amusement venues and underground large space places, as an auxiliary evacuation signs used." And GB15630-1995 "fire safety signs set requirements" Article 611.3 stipulates: fire safety signs used at night or in darker environments should use lighting to meet its minimum average illumination requirements, can also take self-luminous material production.

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The performance of the light-storing self-luminous signs and their limitations


The characteristics of the light-storing self-luminous signs


The light-storing self-luminous material is made of rare earth material, which is a light energy reserve material that can absorb sunlight, light, ultraviolet light and so on. When the light source disappears, the light can be automatically released in the dark, and the afterglow can reach several hours. It is usually made of aluminum alloy, PVC and other plastic materials as carriers, with color paint and ink, and is attached to the substrate by spraying or printing to make signage, which has the characteristics of easy installation, no power supply and maintenance-free.


Light storage self-luminous sign surface luminous brightness test


The author has tested and commissioned the China Testing Technology Research Institute to test the surface luminous brightness of the light-storing self-luminous signs produced by three enterprises for different purposes. The results show that: light storage self-luminous signs in the role of external light (and irradiation light illumination, color temperature is closely related to) a few minutes to a few minutes, after leaving the light source, the initial maximum surface brightness of up to 3cd/m2 or more, the initial maximum surface brightness of individual products up to 12cd/m2, their own sustained luminous (afterglow) up to several hours.

glow in the dark sheet (1)

The limitations of the application of light storage self-luminous signs


According to GB17945-2000 "fire emergency lighting" and GB15630-1995 "Fire Safety Sign Setting Requirements", the luminescence performance of the self-luminous signs will be The luminous performance of the luminous signs is compared with that, and at the same time, because the current light storage Self-illuminated signs are mostly made of plastic, the author believes that the luminous performance of self-luminous Self-illuminated signs used in fire engineering have some limitations as follows.

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