Thursday, December 19, 2019

Creepage and Clearance Rules

Please note Altium has made changes and improvements after the Creepage rule was introduced in AD20.

YouTube What is Creepage and Clearance ?   


PCB Creepage Calculator

In AD20 Altium introduced Creepage Rules

See AD20 Creepage Rule Bug





















Queries with InLayerClass do NOT work :(


















Note that Creepage and Clearance Rules are not the same thing.

Creepage is the length of path on the surface. Slots can be used to the path length.

Clearance the shortest distance between two points.

Slots and Creepage rules should not be used to satisfy Clearance requirements.

Example Clearance Rule















Note: InlayerClass('Outside') is only used in the Second Object Matches.

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