Pneumonia is still spreading around the world, and more and more ultraviolet sterilization products have entered the market. When people use ultraviolet sterilization products for sterilization and disinfection, they may face excessive ultraviolet radiation, which will cause harm to the human body. Therefore, the safety assessment of ultraviolet sterilization products Particularly important. This year, CIE and GLA have successively formulated position statements on the safety concerns of UV sterilization products and provided relevant guidance documents. Consultation: 18113611623
On September 1, 2020, UL officially released UL 8802, an evaluation standard for sterilization systems. The standard is based on UL 1598, the standard for general lighting fixtures, and integrates the test methods, labels, instructions and other requirements of IEC 62471, /TR 62471-2, and provides a standard basis for the North American recognition of ultraviolet germicidal lamps.
UL 8802 applies to fixed-installed UV germicidal products for non-residential use, excluding mobile and hand-held products. It is worth noting that this standard also applies to fixed luminaires with dual functions of general lighting and UV sterilization.
In addition to meeting the structural and test requirements related to general lighting fixtures (UL1598), UV germicidal lamps also need to evaluate the following aspects:
1Photobiosafety assessment
The test distance is 200mm, refer to the test method of IEC 62471. For UV germicidal lamps that work intermittently, the corresponding control devices (timers, sensors, etc.) should be disabled during the test to ensure that the lamps continue to work.
2 Ozone Assessment
For germicidal lamps with emission wavelength less than 250nm, it should meet the ozone test of CSA C22.2 No.187 or UL 867.
3 Evaluation of protective measures
UV germicidal lamps should contain two or more separate electrical or mechanical safeguards to reduce exposure to excessive UV radiation in the germicidal area
risk. It can be used as a protective measure by adding interlock switches, sensors, and sensors. Signs, product labels or instructions are not considered to be effective protective measures. Perform engineering evaluation on the effectiveness of protective measures to ensure that when a single protective measure fails, other protective measures can normally shut down the UV emitter.
4 marks
If the product is exported to Canada, instructions and warning labels in English and French are required. The marks are divided into:
1) Safety Instructions:
should be separated from and preceded by the Installation, Operation and Maintenance Instructions format;
Safety instructions should protect the text and graphic instructions, “READ AND FOLLOW ALL SAFETY INSTRUCTIONS” and “SAVE THESE INSTRUCTIONS” should be at least 4.8mm high, placed in the front and back of the safety instructions, respectively, capital letters should be no less than 2.1mm high, Lowercase letters should not be less than 1.6mm high.
2) Additional labels and descriptions:
The instructions should contain installation, operation, and maintenance instructions; the installation and operation instructions should contain at least the following:
A complete parts list of all required system components, which may also include photos or wiring diagrams of all system components and controllers;
All required components not provided by the system manufacturer should purchase the make and model of the components in the instruction manual;
Wiring diagram of the sterilization system, showing the correct electrical connection of all components;
Diagram of the sterilization process space, including the relative location points of all permitted access locations (e.g. entrances and doors);
Graphical representation of the relative position of all safeguards to ensure that the system can function as intended;
Explain the correct commissioning and operation of the sterilization system;
Provide contact information for installation use and reference, including at least the name, address, and telephone number or website address of the biocide system manufacturer.
