07-05-2003, 05:46 PM
Ghostiger: In the post I originally responded to Channel1 specifically claimed it was unsafe to put a ground on the vaccum nozzle(contridicting what both Pete and I said be fore).
Channel was completely wrong here. Its unsafe to ground your self, but it is safe to ground the nozzel.
Okay, it is also "safe" to stand under a piano suspended by a crane.
But, accidents happen. That is why it's not a good idea to work with instruments that provide a path to complete a no-resistance electrical circuit. With one hand on your metal vacuum nozzle, all it takes is to touch something with an electrical potential with the other hand to complete a circuit through yourself. Something silly, like the plug on the vacuum, can do it.
Some years ago, I paid big bucks for a vacuum designed for cleaning out laser printers. Everything on it, case, hose and nozzles, are a fashionable black plastic, impregnated with carbon fibers. They do that so it will dissipate charge without creating a situation where you get zapped.
It's none of my business if you want to work in a potentially unsafe situation. Telling other people to do it is irresponsible.
-rcv-
Channel was completely wrong here. Its unsafe to ground your self, but it is safe to ground the nozzel.
Okay, it is also "safe" to stand under a piano suspended by a crane.
But, accidents happen. That is why it's not a good idea to work with instruments that provide a path to complete a no-resistance electrical circuit. With one hand on your metal vacuum nozzle, all it takes is to touch something with an electrical potential with the other hand to complete a circuit through yourself. Something silly, like the plug on the vacuum, can do it.
Some years ago, I paid big bucks for a vacuum designed for cleaning out laser printers. Everything on it, case, hose and nozzles, are a fashionable black plastic, impregnated with carbon fibers. They do that so it will dissipate charge without creating a situation where you get zapped.
It's none of my business if you want to work in a potentially unsafe situation. Telling other people to do it is irresponsible.
-rcv-