LEDs are semiconductor devices, are more sensitive to static electricity to prevent static electricity and eliminate static electricity work to do, especially for white, green, blue, purple outdoor led spotlights.
1. Generation of static electricity:
① friction: in everyday life, any two objects of different materials contact after separation, you can generate static electricity, while the most common way to generate static electricity, friction power. The better the insulation of the material, the more likely friction call. In addition, any two different substances, objects in contact after separation, can also generate static electricity.
② induction: a conductive material, due to the electron energy in the surface of the free flow, if placed in an electric field, due to same-sex repulsion, opposites attract, the positive and negative ions will be transferred on its surface will produce charge .
③ conduction: for electronic contact with the electrically charged objects in its surface free flow of conductive material, the charge transfer.
2. The hazards of static outdoor led spotlights:
① heat generated due to the instantaneous electric field or current, the LED local injury, the performance of the rapid increase in leakage current can still work, but the decrease in brightness, life impaired.
② electric field or current destruction of the insulation layer of the LED, the device does not work (completely destroyed), dead lights.
3 ESD and the elimination of measures:
All employees have direct contact with the led high bay lights for the entire process do to prevent and eliminate static electricity measures, mainly
①, workshop laying anti-static floor and good grounding.
②, the table to prevent static table, the production machine well grounded.
③, the operator to wear anti-static clothing, with anti-static