The kindergarten ultraviolet disinfection lamp use and the matters needing attention

Kindergarten ultraviolet disinfection lamp use and regulation method of use: (1) surface irradiation disinfection method: pendant, or portable uv germicidal lamp disinfection, disinfection of effective area of tubes around 1. 5 - 2m。 Every 60 - commonly Building space of 80 square meters, install two 30 watt uv tubes. Irradiation time based on fluorescent intensity and kill pathogenic microorganisms, generally time shall not be less than 30 minutes. High strength, low ozone ultraviolet germicidal lamp, illuminate 30 - in effective range 60 minutes, and the object surface disinfection effect is reliable. (2) indoor air disinfection ZhaoSheFa directly: no conditions indoors, can take the pendant or mobile uv lamp direct illuminate the way. Using indoor pendant ultraviolet light disinfection, indoor installation of ultraviolet disinfection lamp ( 30 w uv lamp is not less than 30 minutes) 。 Note: (1) disinfection using ultraviolet light, the wavelength range is 200 - 270 nm, sterilization by ultraviolet (uv) light source must be able to create value reached the national standard of ultraviolet radiation. Used for disinfection of ultraviolet lamp voltage is 220 v. (2) ultraviolet lamp used in the process of its radiation intensity gradually reduce, reason should be regularly to determine the intensity of the ultraviolet disinfection, once fall below the strength requirements, should be replaced in a timely manner. (3) the intensity of ultraviolet detection and disinfection concentration: use ultraviolet intensity indicator CARDS, 5 minutes after turn on the light, put the light 1 metres in the chemical card, after irradiation for 1 minute, according to the color contrast, generally not less than 90 mu W/cm2 for new tube qualified, old tubes are not less than 70 mu W/cm2 for qualified. The test card should pay attention to avoid light preservation.
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