dust collection grounding wire

[Kent A Bathurst]

Hoowwwever..........I have 8' +/- of flex hose from 15" planer up to metal blast gate and main metal pipe run to DC. Run stuff thru the planer, and those shavings do a great job of creating static electricity - I think it can jump about 4 feet to hit me . I have a bare copper wire inside the flex, screwed to metal pipe on one end and crimped+ soldered to an alligator clip on the other end [to hook to the planer]. Nothing to do with fire potential - it's there because I'm a weenie when I take the static hit. It has always done the job for me..............

For that purpose - any type of bare copper wire does the job. 18ga. 10 ga. Solid. Braided. Whatever. Cheapest = best.

[Ken Fitzgerald]

I have metal pipe with only the last 4'-5' of flex hose.....EXCEPT....on my main run....in the middle of my shop that is shared by my b/s, t/s, sander, planer and tabletop router table. I have a 10' section of flex that gets moved from the tablesaw to the router table when the router table is being used on top the t/s. I was routing some oak and getting very fine shavings and for the first time since my shop was built I saw static cause the shavings to stick to the 2 1/2" flex. Keep in mind, I live in near desert conditions so humidity is very low and static electricity is common year round.

Point blank.....that's why I went with metal. I didn't want to put up with static shocks.