High Voltage - Explicit Design Rules

Outer Layer Rule "HV to LV :  

For Simple Designs with only Thru-Hole Vias

Scope1 Expression

InNetClass('HV') And Not OnMid

Scope2 Expression

InNetClass('LV') And Not OnMid

For Complex Designs with Thru-Hole and  Blind, Buried or uVIAs use ExistsOnLayer

Scope1 Expression

InNetClass('HV') And (ExistsOnLayer('Top Layer') Or ExistsOnLayer('Bottom Layer'))

Scope2 Expression

InNetClass('LV') And (ExistsOnLayer('Top Layer') Or ExistsOnLayer('Bottom Layer'))  

MId Layer Rule HV to LV :

Scope1 Expression

InNetClass('HV') AND (OnMid or OnMultiLayer)   

Scope2 Expression

InNetClass('LV') AND (OnMid or OnMultiLayer)

Notes:

ExistsOnLayer Includes Thru-Hole pads and Vias that connect to outer layers. When using ExistsOnLayer the Top and Bottom layer names must match the long layer user defined layer names in the stackup.

As of AD24.1.2 and older versions ExistsOnLayer is the only reliable solution for designs to use with uVias, Blind and Buried Vias.

That's it !