We are having some confusion understanding which tables are used for clearances and creepages on circuit boards. Can somebody clarify which table to use for circuit traces in primary and from primary to secondary circuits? It is unclear which table represents clearances from a trace to a trace if both traces are in a primary circuit vs a trace to a trace from primary to secondary. Then is this the same table you would use to determine clearances from a component body or a pcb to the chassis? Any help would be appreciated.
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