Ensuring Proper Grounding Of Abs/Pvc Fittings And Tubing For A Dust Collection System - Quatro Premium iVAC Series Operation And Maintenance Manual

iVAC Premium Series Operation and Maintenence Manual
Installation
Ensuring Proper Grounding of ABS/PVC Fittings and Tubing for a Dust Collec-
tion System
For dust collection systems, galvanized metal pipe and fittings are best, but for most typical applications, fittings and
dust collection tubing made of plastic (ABS or PVC) are sufficient, provided they are properly grounded to dissipate static
electrical charges. Dust and air in the right proportions can be an explosive mixture, and a buildup of static electricity can
provide the spark to ignite it.
To safely collect and bleed off the static charge, bare copper wire (not insulated) should be run along the inside of the
duct-work and be attached to grounding screws or a bare metal surface on both the dust collector and the unit that it is
connected to (if it is connected to a unit). The power cords of both machines must be terminated in a grounded three-
prong plug to complete the connection to the ground. Wires over the irregularities of fittings, especially at "Y"s or "T"s
could form traps for particles. Therefore, bypass the fittings by running the wires to the outside through small holes. Seal
the holes with silicone caulking compound and join the wires by twisting them together and securing them with a wire nut.
As charges can also collect on the outside surface, we recommend wrapping bare copper wire in a spiral around the
outside of the tubing, securing it with electrical tape and connecting it to the ground system by means of wire nuts. If you
have any difficulty securing the hose clamp to the hose and fittings, try wrapping the joints with duct tape first to provide a
good gripping surface. If you are still having difficulty in obtaining a safe electrical ground, we recommend the services of
a good electrician.
You may need to ground the flexible hose which connects the iVAC/SmartVAC to a machine. In this case:
1. Peel off some of the "support" wire that is embedded inside the hose—peel off enough so that it reaches one of the
inlet plate screws.
2. Tighten the screw to ground the wire (as shown below on the right) to ground to the unit.
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