Information About Vibration Resistance of LED lights
LED lights are used all over the world due to their high efficiency, low power consumption and long lifetime. Although LED lights are powerful, their performance in practical applications is affected by many factors. Especially harsh environments can reduce the reliability of LED lights and cause malfunctions. Therefore, every LED light must pass various tests such as thermal shock and rain tests in order to meet the relevant standards. IP rating and IK rating are well known as input and impact resistance measurements. Vibration is also an important factor for the reliable performance of LED lights. But it is often overlooked. Vibration resistance of LED lights is essential for applications such as bridges, roads, loading docks and tunnels.
Are LED lights vibration sensitive?
LEDs are shock and vibration resistant. In general, the sensitivity of LED lights to vibration is judged by whether they function normally under the stress of vibration and whether they show light. LEDs are semiconductor devices consisting of juxtaposition of n-type and p-type semiconductors. Current flowing through the devices causes electrons and holes in the devices to coalesce, resulting in a light output corresponding to the energy of the semiconductor band gap. The LEDs are cured with glue on the brackets and then connected to the circuit board with wires. Finally, the LEDs are sealed with epoxy to encapsulate and protect the electronic elements. The robust stage package and non-filament design make the LEDs shock and vibration resistant. Therefore, LEDs are not damaged by vibration during transportation. It is also easy to install LEDs in any miniature or enclosed device. Because there are no filaments and no moving parts, LEDs can normally emit light under shock and vibration. However, this does not mean that LED lights are tough enough to withstand all strong vibrations, consistent and strong vibration can damage LED lights over time.
What are the effects of vibration on LED lights?
All electronic components fasteners, mounting bracket and others are affected by vibration. If the vibration exceeds the capacity of the LED lights, breakouts and malfunctions may occur. For example, LED lights are installed on high masts to illuminate roads or bridges. The combination of strong and consistent wind and traffic causes violent vibration that makes the poles vibrate and threatens the steady support of the LED lights. This type of vibration can cause serious accidents. Turning to the LED lamps themselves, excessive vibration can break the glass and loosen the connections. Glass is one of the irreducible materials for most LED lights. The diffuser and lens of LED lights are usually made of glass. Glass is brittle compared to other components. As a result, vibration can cause the glass to crack. To strengthen the resistance to vibration, tempered glass is chosen for the manufacture of diffusers or lenses. Another consequence of excessive vibration is loose coupling. Various components are interconnected inside the LED light. Only with power supply LEDs can emit light. Vibration will disconnect the wires, blocking the power supply to the LEDs, resulting in flickering or outages.
What are the vibration resistance standards of LED light?
Various vibration test standards apply to electronic equipment. Some focus on electrical safety and performance. Some focus on the minimum capacity to perform under different environmental conditions.
IEC Standard
The most important international electrical standard is IEC. IEC is the abbreviation for International Electrotechnical Commission, which is a subsidiary of the International Organization for Standardization (ISO). The task of this organization is to formulate the necessary standards of the electrical industry. Principle of electrical equipment, how to install and configure, classification of various equipment, etc. It deals with a variety of topics.
There are numbers between 1 and 2 in the title and name of IEC standards.
-IEEE Standard
IEEE (Institute of Electrical and Electronics Engineers) is one of the most important international standardization institutes in the world. IEEE standardization covers a wide range of topics in medical engineering, information technology, telecommunications, transportation, nanotechnology and more.
-ANSI standard
The American National Standards Institute (ANSI) is a privately run non-profit organization that monitors the standards set for the products, services, processes, systems, and work of American employees. Another of its tasks is to harmonize American standards with international standards for the international use of American standards.
How much vibration can LED lights withstand?
Mechanical vibration, generally ranging from 0 to 30Hz, has a serious effect on LED lights. However, it is difficult to calculate the specific vibration resistance of LED lights. There are many factors that affect the ability of LED light to withstand vibration. The main factors are the intensity and regularity of the vibrations, the quality of the LED lights, the distance of the LED lights to the vibrations, and the materials of the LED lights. Long distance reduces vibration, and LED lights can work normally under strong vibration. Vibration can cause the glass to break and loosen the connection. If the glass of LED lights is not shatterproof, they are more likely to crack or explode even with low-intensity vibration. Although it is difficult to determine how much vibration LED lamps can withstand, when you choose LED lamps that comply with the relevant standards and regulations, you do not have to worry about sudden failures caused by vibration.