Re: [Electronica] Polarized Plug on Non Polarized Lamp
- On Wednesday 12 January 2005 08:41 am, David Balma wrote:
> I would not do what you are describing.What, trimming a plug?
> They made polarized plugs for a reason.It's not been apparent to me for quite some time now what that reason might
be. First time I ever ran across those was in certain "hot chassis" models
of TV, but that was a LONG time ago. For a lamp or a fan or somesuch, it
makes no sense at all.
> It was to keep the "hot" side of the AC circuit identified so it could beSince there's no guarantee that any given electrical outlet is going to be
> kept off the chassis eliminating an electrocution hazard.
wired properly the only thing that makes sense to me in this context is to
keep *BOTH* sides of the line "off the chassis". Been doing that for oh,
four decades or so more or less.
> In your case of an AC lamp I would take the hot side of the AC and connectA properly done lamp connection won't have any metal that's connected
> it to the center conductor of the lamp socket. Thus in this manner the least
> amount of conductor would be exposed and possibly come in contact with
> ground potential(big spark) or even worse a human being in series to
> ground(possible death).
available to be touched by person or object...
> To take this concept one more step in the proper direction investigate howI know how they work, basically looking for a difference in the current in
> a GFI works and why they use these devices today in modern housing.
the hot and neutral wires. And why they're used.
> Its to avoid death. They accomplish this by cutting off AC power on theI don't think the response is *quite* that fast.
> outlet when only a few micro amps(or even less, nano) are detected flowing
> to ground. The sensing only takes a fraction of a second into the AC sine
> wave cycle to trip the breaker.