On Mon, 15 Nov 2004 21:36:38 -0700, wrote:

home shops never involve anywhere near the volume of dust needed to
generate a hot static discharge into a dust cloud dense enough to
sustain it.

Nor does a commercial DC. It's not the volume that's the issue, it's
the energy per discharge.

Plastic piping, and unearthed too,
is in regular use for the flexible sections of DC hookups.

that's ABS flex, not long straight sections of PVC

How are machines like panel saws connected to a DC in the USA ? Here
we commonly see ten-twenty foot drops of clear flexible PVC.

--
Smert' spamionam