Power cabling advice?

From: Fred N. van Kempen <waltje_at_pdp11.nl>
Date: Tue Jul 29 17:29:01 2003

Hi all,

After reviewing the current status of the power system I have
for the hobby systems (7 segments of 240VAC at 20A each, one
of which being used by a big airco), I noticed something.

I did my best to physically separate the systems from eachother
on the network, just to avoid massive burnouts if/when a single
system goes BOOM on me. I use AUI ports and -cabling to (DELNI)
repeaters, and from a DELNI (a "systems group" in my network),
a single 10BaseFL link goes up to the fiber hub in the machine
room, which handles all the other stuff etc.

However... it just ocurred to me that even though I did that, I
still have some sort of a "connection" through the main power
lines (3x 500VAC _at_ 48A/ea) here, so, if an old 11/23 in a BA23
goes smokey on me, it still could kill my (quite expensive)
production network stuff through the power system.

Does anyone have (serious) ideas on how to fix this (short of
requesting three separated power lines from the utilities.. they
have a hard time dealing with me as it is ;-)

Thanks,
        Fred (slightly worried)
Received on Tue Jul 29 2003 - 17:29:01 BST