Fig. Creepage path follows
the contour the groove but „short-circuits“ the bottom the
groove link.
Rule: Clearance the shortest direct air path over the top the rib. 4.
Rule: Clearance the „line sight“ distance. Creepage path follows
the contour the groove.
Fig.170
Fig.202: Example 2:
> mm
Condition: Path under consideration includes parallel-sided groove any
depth and equal more than mm. 4.203: Example 3
Condition: Path under consideration includes V-shaped groove with a
width greater than mm.
Rule: Clearance the „line sight“ distance.
Clearance distance:---------------------Creepage distance:
.
Creepage path follows the contour the rib. 4.204: Example 4:
Condition: Path under consideration includes rib
