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![Nomograph from IPC-2221 for "external conductors" [2] with example of... | Download Scientific Diagram](https://www.researchgate.net/publication/4085572/figure/fig2/AS:667702683258892@1536204133882/Nomograph-from-IPC-2221-for-external-conductors-2-with-example-of-usage.png "Nomograph from IPC-2221 for \"external conductors\" [2] with example of... | Download Scientific Diagram")