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Several common insulation shielding techniques for power adapters
Jan 11, 2018

The first type: additional insulation technology

The so-called additional insulation technology, which is independently added to the base insulation, can guarantee the occasional entry into effect on the base insulation, supply to the electric shock level two of the cover. However, it should be noted that the minimum thickness of the additional insulating single-layer data must be greater than or equal to 0.4mm, so as to effectively provide cover protection.

The second type: strengthening insulation technology

This technique is designed to avoid the shock of a wide range of insulation systems, which are functionally equivalent to dual insulation. In the use of enhanced insulation technology for circuit design, the minimum thickness of the single layer is greater than or equal to 0.4mm, so that there are several layers of insulation protection, but each layer can not be tested alone.

The third type: base insulation

This technique is the most basic insulation method for avoiding electrical shocks to the power adapter, and is also the clearer insulation technology introduced in textbooks. However, the foundation insulation alone is not absolutely safe, engineers also need to use additional insulation and shielding grounding level two to reach the security request, such as insulation between the coil layer.