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Precautions for the use of ultraviolet germicidal lamps

by:ALLTOP      2021-06-12

The ultraviolet germicidal lamp is currently important sterilization equipment in the industrial and medical fields. Ultraviolet radiation destroys the structure of virus DNA and achieves the effect of sterilization and disinfection. However, in the process of using it, you need to pay attention to some matters to ensure the safe use of the equipment.

1. Do not let the ultraviolet light source irradiate people, so as not to cause damage

Ultraviolet rays have particularly obvious effects on human skin and eyes. The human body will be exposed to short-term exposure to skin redness, itching, and allergic pimples; long-term exposure will cause serious damage to the skin tissues, and sufficient doses of exposure can even cause skin cancer. Ultraviolet rays are also very harmful to the human eyes. Long-term exposure to ultraviolet rays can cause cataracts and even blindness.

2. When using ultraviolet rays to disinfect the surface of objects, the irradiated surface should be directly irradiated by ultraviolet rays, and a sufficient radiation dose should be achieved

Because of the straight-line propagation of light, when objects are blocked, reflection, penetration or absorption will occur. Ultraviolet disinfection requires that the wattage of the ultraviolet lamp per cubic meter of space is ≥1.5W, and the irradiation time is generally 30 to 60 minutes. It is also stipulated that the intensity of ultraviolet radiation shall not be lower than 70 ūW/cm2, otherwise, the sterilization effect will be poor or ineffective, and the purpose of sterilization will not be achieved.

3. Should also pay attention to the wiping and cleaning of the lamp in the application

When using a new lamp, you can use 75% alcohol gauze to wipe the lamp tube to remove dust and oil stains on the lamp tube. During use, wipe regularly and do a good job of cleaning the lamp, so as not to affect the purple transmittance and radiation intensity.

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