source:power adapter Popular:adapter release time:2021-11-27 09:58:53 Article author:sznbone
During the operation of the power adapter, the surge in the circuit may suddenly be higher than the risk voltage. In order to ensure the normal operation of the circuit, it is necessary to adopt appropriate insulation protection technology. Under normal circumstances, the more common insulation shielding technologies are generally divided into the following types:
The first type: additional insulation technology
The so-called additional insulation technology is independently added to the basic insulation, which can ensure that the basic insulation takes effect occasionally and provides secondary protection against electric shock. However, it should be noted that the minimum thickness of the additional insulating single-layer material must be greater than or equal to 0.4mm in order to effectively provide protection.
Type 2: Reinforced insulation technology
This technology is one of many insulation systems to avoid electric shock, and it is functionally equivalent to double insulation. When using reinforced insulation technology for circuit design, the minimum thickness of the single layer used inside is greater than or equal to 0.4mm, so that there can be several layers of insulation protection, but each layer cannot be tested independently.
The third type: basic insulation
This technology is the most basic insulation method to avoid electric shocks for the power adapter, and it is also a relatively clear insulation technology introduced in the textbook. However, basic insulation alone is not absolutely safe. Engineers also need to pass additional insulation and protective grounding to achieve safety requirements, such as insulation between coil layers.
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