On 1/30/2021 10:38 AM, Leon wrote:
....

I don't recall if the warning to ground the DC is to prevent an
explosion from a spark or not.

More likely to prevent one from being shocked from static electricity on
the hose.Â* And that static electricity tends to let dust build up inside
the hose.

Well, there's a lot that claim it is but there's simply insufficient
energy there for it to be a viable ignition source for woodworking dust.

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