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-20- G0562 3 HP Dust Collector
Be sure that you extend the bare copper wire
down all branches of the system. Do not forget to
connect the wires to each other with wire nuts
when two branches meet at a “Y” or “T” connec-
tion.
Ensure that the entire system is grounded. If
using plastic blast gates to direct air flow, the
grounding wire must be jumped (Figure 22)
around the blast gate without interruption to the
grounding system.
Figure 22. Ground jumper wire when using
plastic blast gates and metal duct.
Plastic Blast Gate
Metal Duct
Copper Ground Wire
Figure 23. Flex-hose grounded to machine.
Ground Screw
Flex-Hose
Internal Ground Wire
External Ground Wire
We also recommend wrapping the outside of all
plastic ducts with bare copper wire to ground the
outside of the system against static electrical
build up. Wire connections at Y’s and T’s should
be made with wire nuts.
Attach the bare ground wire to each stationary
woodworking machine and attach the dust collec-
tor frame with a ground screw as shown in Figure
23. Ensure that each machine is continuously
grounded to the grounding terminal in your elec-
tric service panel.