Led Guardrail Tube Being Influenced By Temperature And Its Strategy

By Author: Rihey
Total Articles: 118
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Under daily conditions, LED guardrail tube undergoes daily temperature change and also sunshine radiation heating and greenhouse effect, and how is the temperature influence on LED guardrail tube. We will analysis and calculate it by gas equation of state. Normally certain gas state is described by three parameters like volume, temperature, and intensity of pressure; their relations are showed by equations of state as follows: pV = nRT

n——gas Moore quantity; its three state variable: p——intensity of pressure(Unit KPa, 1000 PASCAL), V——volume, T——gas thermodynamics temperature(Unit K, Kelvin, equivalent to 273.15+centigrade degree): R——gas constant(R relates with intensity of pressure, temperature and gas species; guardrail tube regular application environment can be considered as a fixed value).

Generally, when a guardrail tube is well finished, the gas Moore quantity well closed in tubes is fixed; let’s presume that the volume is unchangeable and the temperature is changeable and then it will result in the change of intensity of pressure; the state variable relation will be expressed by the ...
... following mathematic expression:
　
The guardrail tube is under the influence of small or big force everyday and then its hermetic structure is broken, and then the negative pressure inside the guardrail tube will inhale air into the lamps and at the same time the moisture attached on the shell will infiltrate into the lamp.
　　
All above is the analysis of the D50 style tube; in fact, tubes used by LED lighting night scene project are even bigger and the temperature in realistic environment is more severe (cheap led lights); the temperature in northern winter can be as low as 30 degrees below zero, the temperature in southern outdoor scorching sun insolation can be as high as 60 degrees; the change of 90℃ brings 0.3 pressure difference of atmosphere to the guardrail tube and that is why some guardrail tubes are burst.
　
Till now, LED guardrail tube manufacturing factory pays less attention to the influence of climate; they all introduce creative efforts in hermetic technology andthey do nothing in key point. The dynamic waterproof technology developed by A delicately balances (waterproof lights), the air pressure interior or exterior of the guardrail tube and eliminates the destroy factors brought by temperature change and avoids inhaling moisture when decreasing temperature, which solves once for all the waterproof problem which bothers the industry by means of low cost and high reliable solution. from: led bulb light