How To Improve Waterproof Performance Of Outdoor Led Street Light?

LED street light is exposed to the outdoor perennially,withstanding wind blow & rain,even snow weather,that will cause serious damage to street light and shorten the service life.Especially the region of continuous heavy rain, the street lamp pole should also do a good job of protective measures, hot-dip galvanized best, so as to prevent serious corrosion of the surface of the lamp pole.In order to prolong the service life of street lamps, the waterproof problem becomes very important.

Solar street light has a circuit, so in the process of use must do a good job of waterproof, otherwise the water once get into the solar street light line, it may cause a short circuit of the street light, resulting in leakage or not bright and some other problems.

So how to improve waterproof performance of street lamp,especially solar street lamps?

LED street light manufacturer divides the waterproof of street lamp into three parts:The first is the waterproof of lamp holder, the second is the waterproof of street lamp controller, the last is the waterproof of street lamp battery.

1.The waterproof of Solar street light lamp holder

The sealing of solar street lamp holder must be qualified. The waterproof treatment of lamp holder can ensure the service life of street light. Therefore, the choice of street lamp shell is very important.

2.The waterproof of Solar street lamp controller

When choosing, we must pay attention to whether the solar powered led street light lamp controller has waterproof performance.When the controller is installed, it is usually installed inside the street lamp, so as to better avoid withstanding the wind and sun.

3.The waterproof of Solar led street lamp battery

Solar street lamp batteries are required to have a degree of water resistance.The battery of solar street lamp is installed by burying the battery in the ground, about 40 centimeters below the street lamp, to avoid flooding.

What factors will affect the waterproof performance of EXC outdoor led street light?

Effect of Ultraviolet (uv) on waterproof performance of outdoor lamps

Ultraviolet (uv) has damage effect on exposed wire insulation layer, shell protective coating, plastic parts, potting glue, sealing rubber strip, adhesive.After a long time, there will be aging cracking and damage to the waterproof ability of led lamps.

The waterproof performance of EXC outdoor LED lamp is affected by high and low temperature difference

The surface temperature of outdoor led lamps can rise to 50 ~ 60℃ during the day in summer, and drop to 10 ~ 20 ℃ in the evening. In winter, the temperature in snow and ice days can drop to minus zero, and the temperature difference change is greater throughout the year.Under high temperature environment in summer ,the material of outdoor lamps accelerate aging deformation.In winter, when temperatures drop below zero, plastic parts become brittle and prone to cracking under the pressure of ice and snow.

Influence of thermal expansion and cold contraction on waterproof performance of outdoor street light

The change of temperature will cause the thermal expansion and cold contraction of outdoor street light.The linear expansion coefficient of the lamp shell is different for different materials (such as glass and aluminum), and displacement will occur at the junction of the two materials.As time goes by, the process of thermal expansion and cold contraction is repeated, which will seriously affect the air tightness of outdoor street light.

Introduction of waterproof technology for outdoor led street light:

At present, the waterproof technology of outdoor led street light is mainly divided into two directions: structural waterproof and material waterproof.The so-called structure waterproof, is in the product of the various structural components combination, has waterproof function.Material waterproof means that during product design, the position of sealing glue to seal electrical components should be set aside, and waterproof material should be used in assembly.

The led street lamp designed by material waterproof, the use of filling sealant to insulate and waterproof, use sealant to seal the joints between the structural parts, so that the electrical parts are completely airtight, to achieve the role of outdoor outdoor led street light waterproof.

With the development of waterproof material technology, various types and brands of potting sealant for led lamps continue to appear, such as modified epoxy resin, modified polyurethane resin, modified organic silicone and so on.Different chemical formulations, potting adhesive elasticity, molecular structure stability, adhesion, uV resistance, heat resistance, low temperature resistance, hydrophobicity, insulation and other physical and chemical performance indicators are different.

Compared with indoor lighting lamps, outdoor lighting lamps need to withstand the test of snow and ice sun, wind and rain lightning for a long time.In order to ensure the long-term and stable work of LED solar street light outdoor harsh conditions, waterproof design of outdoor lighting lamps is extremely critical.

If the waterproof performance of LED street lamps is bad, it will cause damage, and the application effect is very poor, which will bring a lot of trouble to consumers.No one wants to change the lamp holder or the driving power supply frequently, this process is very troublesome, and the labor cost is high.