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kicad-source/pcb_calculator/iec60664_help.md
jean-pierre charras 47c0c7b3b7 pcb_calculator: add iec60664 electrical spacing panel. 
From patches from by Fabien Corona and Aris_kimi
2023-06-07 12:01:30 +02:00

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The goal of the IEC60664-1 is to provide guidance on designing insulation for products that have a connection to mains supply.

However some cases are not covered by this calculator:

  • For frequencies higher than 30kHz, the dielectric perfomances are degraded. IEC60664-4 covers those cases
  • When using a conformal coating or a potting in order to protect for pollution, if all conditions specified by IEC60664-3 are met, the clearance and creepage distances can be reduced. Soldermask is usually not considered as a conformal coating.
  • Insulations trough liquids, compressed air or gases other than air are not in the scope of IEC60664