Detailed explanation: luminaire classification and marking requirements

Class 0 luminaire

Relies on basic insulation as a lamp to protect against electric shock. In case of basic insulation failure, protection against electric shock depends on the environment.

Class I luminaire

Lamp protection against electric shock not only depends on basic insulation, but also includes additional safety measures, that is to connect the accessible conductive parts to the protective grounding conductor in the fixed line, so that the accessible conductive parts will not be in case of basic insulation failure. charged.

Class II luminaire

The protection against electric shock not only depends on the basic insulation, but also has additional safety measures, such as double insulation or reinforced insulation, but there are no protective grounding measures or depend on the installation conditions.

Class III luminaire

The power supply used is a SELV-safety extra-low voltage, and the interior of the luminaire will not generate a voltage higher than SELV.

Marking requirements:

The logo should be clearly and permanently marked on the luminaire. The minimum height of the text is 2mm, and the minimum height of the symbol is 5mm.

The durability test method for test marks is: wipe lightly with a cloth soaked in water for 15 seconds. After drying, wipe lightly for 15 seconds with a cloth impregnated with gasoline. Visually inspect after completing the durability test. After the test, the mark should be clearly written and the label should not be easily peeled off or curled.