How do I check the number of pinholes in enameled wire?
Feb 10,2025
Enameled wire is the current motor and transformer equipment on the use of a very wide range of wire, to determine the quality of the enameled wire there are many factors, one of the more critical is to look at the enamel film continuity of the enameled wire, that is, the detection of a certain length of enameled wire under the number of pinholes on the enameled film.
The number of pinholes in the film can largely reflect the quality of enameled wire, the fewer the number of pinholes detected, the higher the integrity of the film of the enameled wire, the better the use of the results, and vice versa, then the quality of the enameled wire will be greatly compromised. So how do we check the number of pinholes in the enameled wire in practice?
Generally we will use the enamel film continuity tester to check the number of pinholes in the enameled wire, this test mainly utilizes the principle of high pressure relief, the electromagnetic wire and the application of high pressure concave wheel through the half-envelope contact, when encountered with insufficient thickness of the enamel film or serious defects in the bare copper, the instrument will react and record the number of specific defects. This will show the number of pinholes in this section of enameled wire.
Therefore, when we purchase enameled wire, we should also pay attention to check the number of pinholes in the enameled wire, which can help us to judge the quality of the enameled wire, which is also very useful for our use.
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