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Static electricity is generated in dust collection
systems. Any spark generated by static electric-
ity is a potential fire or explosion hazard.
Therefore, your dust collection system must be
grounded by means of metal ducting throughout
the system or, when plastic pipe and/or hoses
are used, by bare copper wires.
If using metal ducting for the collection system,
ensure that it is electrically connected to both
the dust collector and each machine serviced in
the system. If plastic hose is placed between
metal ducting and any machine, secure a 12
gauge bare copper wire between the metal
ducting and the machine.
When the system is to be made up of plastic pipe
and/or hoses, wrap 12 gauge bare copper wire
around the hose from the dust collector to the
machine. Another wire should be placed inside
the pipe/hose with exit holes for the wire
placed near each end.
See Figures 22 and 23.
If
the system has branches, place wires in the
same fashion and connect to the wires on the
main pipe/hose with wire nuts. If blast gates are
to be used, drill exit and entrance holes on
either side of the blast gate to allow wire to be
fed out of and into the system.
See Figure 24.
Note: For more extensive information on Dust
Collection System design, refer to Dust
Collection Basics which is available for purchase
through any Woodstock/Shop Fox
®
Dealer.
System Grounding
Figure 22.
Wire inside and around pipe.
Figure 23.
Ground wire secured to collector.
Figure 24.
Ground wires bypassing blast gate.
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