The use of bactericidal irradiators must be carried out in accordance with the requirements specified in the passport and operating instructions. Servicing bactericidal plants should not be allowed to personnel who have not undergone training in the prescribed manner.
For the effective operation of bactericidal plants, dust is periodically cleaned of the reflecting surfaces of the irradiators and the lamp bulb. Dust removal should be carried out as it gets dirty, but at least 1 time per month by wiping the lamps with a 70% solution of ethyl alcohol. Dust wiping should only be carried out with the power off. Bactericidal lamps that have fulfilled the guaranteed service life specified in the passport must be replaced with new ones.
If a characteristic smell of ozone is detected in the room where the bactericidal irradiator is located, immediately turn off the power of the bactericidal installation from the network, remove people from the room, turn on ventilation or open windows for thorough ventilation until the smell of ozone disappears. Then turn on the bactericidal unit and after an hour of continuous operation (with the windows closed and the ventilation turned off) measure the concentration of ozone in the air. If it is found that the ozone concentration exceeds the MPC, then the further operation of the bactericidal installation should be stopped, the Ozonation lamps should be detected and replaced. The supply and disconnection of the power of bactericidal plants with open bactericidal lamps from the electric network is carried out using separate switches located outdoors at the front door, which are interlocked with a light indicator above the door. Switches for installations with shielded irradiators are installed in any place convenient for staff, taking into account the distribution of patient flows and certain risk zones for the spread of tuberculosis. Above each switch is placed the inscription: “Bactericidal irradiators.” When placing installations with shielded irradiators in the wards, it is recommended that the switches be placed in the corridor and equipped with light indicators for the operation of bactericidal lamps to ensure control by the medical personnel of the constancy of lamp operation.
In case of violation of the integrity of the bactericidal lamps in the emitters and mercury entering the room, thorough demercurization of the room should be carried out with the involvement of a specialized organization.
Bactericidal lamps that have exhausted their working life or have failed should be stored in metal boxes in a dedicated separate room. Disposal of bactericidal lamps should be carried out in accordance with the requirements of DSanPiN 2.2.7.029-99 (https://zakon.rada.gov.ua/rada/show/v0029588-99?lang=en) “Hygienic requirements for the treatment of industrial waste and definition class of danger to public health.”
Supervision and control of the use of ultraviolet bactericidal plants in accordance with these Recommendations and other regulatory and methodological documents approved in accordance with the established procedure is carried out at least once a year (using a UV meter) by a specialist (e.g. engineer) of the institution who has passed the relevant training.