“I am looking for alternative methods to improve the ground on a powder coating line. I have been informed of a system whereby the hooks hanging material “brush” by a grounding rod(s) just prior to, and during, powder application. Is such a device manufactured ? (the system I was informed of was a fairly crude homemade job).
Any information is appreciated as well as any other suggestions for improving grounding. Thank You.”
“All grounding rods are homemade and usually crude. They are used as a last resort to provide a good ground to the parts being sprayed. All efforts to provide the ground through the conveyor and hanger should be made first. Ground rods can cause ungodly noise and dirt (iron filings) within the powder booth.
Clean your hangers and conveyor parts on a regular basis and you won’t have to deal with this issue. One megohm (1,000,000 ohms) resistance to a known ground is allowable under NFPA code.”