functional insulation as well as other insulation exists on circuit boards. Typically, the surface environment of a circuit board is determined to be either Pollution degree 3 or pollution degree 2.If the circuit board is mounted in an electrical box and sealed with a solid sealant, the sealing will look as follows: What should be…
We are discussing here the second structure of the PTC heating element, PTC heating element structure please refer to the explanation of its definition. How is the creepage distance of the functional insulation at the location of the red circle in Figure 1 determined? We all know that NOTE 1 of TABLE 18 section has…
distância de fuga: distância mais curta ao longo da superfície de isolamento entre duas partes condutoras ou entre uma parte condutora e a superfície acessível. As cargas podem ser propagadas de maneira direcional pelo ar, formando assim uma corrente. Este é o significado de autorização. Na verdade, as cargas também podem se propagar através do…
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