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Woodworking (rec.woodworking) Discussion forum covering all aspects of working with wood. All levels of expertise are encouraged to particiapte. |
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explosive situation?
My hi-tech DC system for my TS consists of a shop-vac connected to a 30
gallon plastic dust bin. The dust bin is then connected to the bottom of my contractor saw with a flexible aluminum 4" dryer vent. I normally have the back of the saw closed off with 1/4" plywood and this system works fairly well. Yesterday I needed to clean out the inside of the saw, so I unplugged the saw and turned on the shop vac. I then bent over and pushed the sawdust into the chute on the bottom of the saw. While I was doing this everytime my hand partially blocked the hole leading to the dryer vent it would compress slighty and touch the frame of the saw. That is where I saw the spark. A tiny spark between the leg of the saw and the aluminum vent connected between the plastic dust bin and the plastice adapter on the saw. In theory, static can ignite fuel vapors or gases, but wood dust? Both the shop-vac and TS are plugged into properly wired 3-prong outlets but this is only really grounding them in case of a motor failure. Should I somehow ground this DC system or just ignore the static? |
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