lamps Protection against electric shock classification

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 Protection against electric shock way classification
For electrical safety lamps all live electrical parts must be isolated using insulating materials such as lamps to protect the personal safety measures as protection against electric shock. Protection against electric shock, lamp can be divided into 0, I, II and III, a total of four categories. (See table below) mode, the lamps can be divided into

Class 0
Protection rely on basic insulation, the insulation between accessible parts and the shell and live parts
Applicable to the occasion of a high degree of security, and led high bay lighting installation and maintenance. Such as the air is dry, dust, under the condition of the wood floors, chandeliers, ceiling lamps.

Class I
In addition to basic insulation, easy-to-reach part of the shell grounding device, once the basic insulation failure, not that it is dangerous.
For the metal shell lamps, such as investment and lights, street lamps, garden lights, etc., to improve safety.

Class II
In addition to basic insulation, as well as supplementary insulation, made of double insulation o r price reinforced insulation, improve security,
Good insulation, a high degree of safety, applicable to the situation is bad, people often touch lamps, table lamps, portable lamps, etc..

Class III
Extra-low safety voltage (AC RMS <50V), and the electrodeless lamp does not produce voltage higher than this value.
A high degree of lighting safety for harsh environments, such as machine work lights, children s lamps.