Hello, Technetters!

I was wondering about the rules for conductor spacing in PWB for
electrical clearance if there is up to 500 V (low current) in the
conductors.  IPC-2221 (table 6-1) states that innerlayer conductors
should be 10 mils apart.  What is the reasoning behind this and is this
"overkill"?  It states that this is for x-y and z-axis.  Does this vary
with different material sets?  I assume someone did testing some time
ago and came up with this table.  Anybody has experience with departing
from these rules?  Do OEMs stick to them?

Thanks in advance,

Goran
___________________________________________
 Goran Matijasevic
 Ormet Corporation
 2236 Rutherford Road, Suite 109
 Carlsbad, CA 92008
 Tel: (760) 931-7099  Fax: (760) 431-6971
 E-Mail: [log in to unmask]

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