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Attention should be paid to the level of protection against electric shock when using micro-switch

Release time:2019-02-15    Clicks: Click

 
When we use the micro switch, we should pay attention to the level of protection against electric shock. What are the specific levels? Now let's give you a detailed introduction.
金沙国际唯一官网
Anti-shock protection level of micro-switch: indicating the level of anti-shock, there are four levels as follows.
Class 0: As an anti-shock measure, it is only protected by basic insulation.
Class I: As an anti-shock measure, besides basic insulation, ground wire is added to protect it.
Class II: As an anti-shock measure, it is protected by double insulation or reinforced insulation, and does not need to be grounded.
Class III: As an anti-shock measure, no anti-shock measures are needed because of the use of safe ultra-low voltage (below 50VAC, or below 70VDC) circuits.
Proof Tracking Index (PTI): refers to the leakage resistance index.
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