Outdoor LED display fire prevention
Outdoor LED display fire prevention
With the rapid progress of LED technology and the development of business, outdoor full-color LED display is used by more and more users, and plays a very important role in advertising and publicity. However, due to the harsh outdoor environment and the display itself and other reasons, from time to time the problem of fire will occur, causing great losses to individuals and society. How to avoid the fire of outdoor full color LED display is a serious problem.
Outdoor full-color LED display fire performance is mainly good or bad with the display fire raw materials, heat dissipation design and man-made reasons are very closely related.
Fireproof raw materials mainly include the display of the internal use of wire, power supply, external protective structure fireproof material and plastic parts of these four aspects:
The first point: outdoor full-color LED display unit area display the larger, the larger the power consumption, the wire power stability also has higher requirements. Numerous wire products, the use of wire in line with the national standard requirements to ensure its stability, specifically the following points: the core for the copper conductive carrier, core cross-sectional area tolerance in the normative range of values, wrapped in the core of the insulation and flame retardant to the norms of the rubber skin. Compared with the general copper-clad aluminum wire core, core cross-sectional area of small, insufficient grade of insulating gel coat wire, the energizing performance is more stable, less prone to short-circuit conditions.
The second point: through the UL and CCC certification of outdoor full-color LED display dedicated power supply is also the best choice when choosing similar products, its effective conversion rate can ensure that the power load peace and stability, the external ambient temperature hot conditions, can also work normally;.
The third point: outdoor full-color LED display external protective structure, the market fire rating of the display products are mostly fireproof aluminum composite panel, its fire resistance is excellent, fire retardant is also very strong, the core material special material oxygen aging performance is also very strong, melting temperature of 135 ° C, decomposition temperature of ≥ 300 ° C, the environmental performance of the low-smoke halogen-free, in line with the SGS fire-retardant B-S1, the general outdoor display products. Aluminum composite panel with high temperature, rain, cold and heat shock aging faster, so that it is in the more humid climate seasonal segments, rain and dew can easily penetrate into the internal screen body leading to electronic components short-circuit caused by fire.
The fourth point: outdoor full color LED display fire raw materials there is an important part of the plastic parts, that is, the plastic parts are mainly unit module mask bottom shell of the use of materials, the main raw material used is a flame retardant function of the PC + fiberglass material, not only has a flame retardant function, but also in the high and low temperatures and the temporary use of the non-deformation, will not become brittle and cracked, combined with the sealing of the use of glue, can effectively block the rain of the external environment, can be used to prevent the rain. At the same time, combined with the use of better sealing glue, it can effectively block the rainwater from the external environment from penetrating into the interior, thus causing short-circuit fire.
In addition to the internal raw materials will affect the effect of fire prevention, the external configuration and design is also very important, but the external configuration is mainly related to the fire prevention issues in the heat dissipation, display work will be configured at the same time as the exhaust fan and air conditioning on the internal cooling screen body cooling, it is recommended that every 8-10 square assembly of 1P air conditioning to ensure that the temperature inside the screen to adhere to the normal temperature, air conditioning or exhaust fan configuration is not in place will result in the disposition of the cooling Uneven, easy to cause the temperature rise and cause the screen body internal security risks. At the same time many outdoor full-color LED display enterprises in the box protection level test, just a simple simulation of the external environment in the spray waterproof test, waterproof effect of durability and strength to be proved, so caused in the display products used for a period of time on the occurrence of water seepage, which is an outdoor display is prone to fire or the use of the short life of an important reason. To cope with thunderstorms, the screen device lightning arrester is also a necessary tool to prevent lightning strikes and burn the internal devices of the screen, you can direct the lightning into the ground, and will not have an impact on the screen.
All of the above belongs to the outdoor full-color LED display internal reasons, of course, can not be ignored in the later use and maintenance process caused by human factors, such as in the follow-up maintenance work, the operator did not follow the strict procedures for the operation of the work process is also easy to lead to the fire, must be paid special attention to.
Outdoor full-color LED display fire performance is mainly good or bad with the display fire raw materials, heat dissipation design and man-made reasons are very closely related.
Fireproof raw materials mainly include the display of the internal use of wire, power supply, external protective structure fireproof material and plastic parts of these four aspects:
The first point: outdoor full-color LED display unit area display the larger, the larger the power consumption, the wire power stability also has higher requirements. Numerous wire products, the use of wire in line with the national standard requirements to ensure its stability, specifically the following points: the core for the copper conductive carrier, core cross-sectional area tolerance in the normative range of values, wrapped in the core of the insulation and flame retardant to the norms of the rubber skin. Compared with the general copper-clad aluminum wire core, core cross-sectional area of small, insufficient grade of insulating gel coat wire, the energizing performance is more stable, less prone to short-circuit conditions.
The second point: through the UL and CCC certification of outdoor full-color LED display dedicated power supply is also the best choice when choosing similar products, its effective conversion rate can ensure that the power load peace and stability, the external ambient temperature hot conditions, can also work normally;.
The third point: outdoor full-color LED display external protective structure, the market fire rating of the display products are mostly fireproof aluminum composite panel, its fire resistance is excellent, fire retardant is also very strong, the core material special material oxygen aging performance is also very strong, melting temperature of 135 ° C, decomposition temperature of ≥ 300 ° C, the environmental performance of the low-smoke halogen-free, in line with the SGS fire-retardant B-S1, the general outdoor display products. Aluminum composite panel with high temperature, rain, cold and heat shock aging faster, so that it is in the more humid climate seasonal segments, rain and dew can easily penetrate into the internal screen body leading to electronic components short-circuit caused by fire.
The fourth point: outdoor full color LED display fire raw materials there is an important part of the plastic parts, that is, the plastic parts are mainly unit module mask bottom shell of the use of materials, the main raw material used is a flame retardant function of the PC + fiberglass material, not only has a flame retardant function, but also in the high and low temperatures and the temporary use of the non-deformation, will not become brittle and cracked, combined with the sealing of the use of glue, can effectively block the rain of the external environment, can be used to prevent the rain. At the same time, combined with the use of better sealing glue, it can effectively block the rainwater from the external environment from penetrating into the interior, thus causing short-circuit fire.
In addition to the internal raw materials will affect the effect of fire prevention, the external configuration and design is also very important, but the external configuration is mainly related to the fire prevention issues in the heat dissipation, display work will be configured at the same time as the exhaust fan and air conditioning on the internal cooling screen body cooling, it is recommended that every 8-10 square assembly of 1P air conditioning to ensure that the temperature inside the screen to adhere to the normal temperature, air conditioning or exhaust fan configuration is not in place will result in the disposition of the cooling Uneven, easy to cause the temperature rise and cause the screen body internal security risks. At the same time many outdoor full-color LED display enterprises in the box protection level test, just a simple simulation of the external environment in the spray waterproof test, waterproof effect of durability and strength to be proved, so caused in the display products used for a period of time on the occurrence of water seepage, which is an outdoor display is prone to fire or the use of the short life of an important reason. To cope with thunderstorms, the screen device lightning arrester is also a necessary tool to prevent lightning strikes and burn the internal devices of the screen, you can direct the lightning into the ground, and will not have an impact on the screen.
All of the above belongs to the outdoor full-color LED display internal reasons, of course, can not be ignored in the later use and maintenance process caused by human factors, such as in the follow-up maintenance work, the operator did not follow the strict procedures for the operation of the work process is also easy to lead to the fire, must be paid special attention to.