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b] If a 15A circuit is used to power a bunch of old fashioned filament light bulbs. If the continuous current is 12A (all that's permitted in a 15A circuit) then the cold turn-on current could approach 120A in the first second.
c] While the safety margin continuous current limit for common 14AWG wire is 15A the real limit is 27 to 29A. But under fault conditions that 14AWG wire will fail after 1 second at 600 Amps.
Good thread!Assuming both components are grounded then the ground wires in the power cords and building wiring also connect the grounds along with the IC's ground wiring.
Earth-fault loop impedance values, for 240V.MAXIMUM EARTH FAULT LOOP IMPEDANCE VALUES FOR OVERCURRENT PROTECTIVE DEVICES IN COMMON USE, FOR FAULT PROTECTIONShould I remove the earth choke?
jp, safety is within understanding. It's respect, not fearful avoidance. Respect produces predictability, fear produces a defense position that is regardless of predictability.
I'm not sure why you are comparing a 10mh inductor now.
The resistance of the DENO's are rated in millionths of an ohm.
Do you have children?
Where are you getting this???
Yes, 14 months old... That is why I really need to know...From here: Schurter DENO
.....I think these Schurter doohickeys are ideal for their task, providing substantial inductance in a very small, purpose built package. I'm surprised no one has commented positively.
.....Occam's the one pointing out the rating concerns. The resonate frequency, again, is .3mhz. "Not at the same time," as he says for current, induction (and there for series reactance properties)......
As a child I stuck my fingers with tools of some sort into PLENTY of AC outlets.I am still, sad to say, alive. (there is only so far the regulating agencies can go to counter the stupidity of the average individual. I can also say that it does indeed hurt, me it was a pair of small scissors.)(I did see my 280lb dad get tossed five feet across a room while trying to fiddle in the back of our tubed, not solid state color TV while it was turned on, back in the 1960's, which I would guess was he touched the high voltage something..) (good guess. Early color TV's had inefficient phosphors, 17kv was pretty much the level.)In 64 years I have never had an electrical component fail to a live chassis. Nor have I read nor heard of ANY child anywhere getting electrocuted by a stereo component which was improperly grounded. (Nor I. Look up the stats on electrocutions in the US alone. Granted, a few hundred dead out of 300 million is very small.)So I have to say the worry about our precious children may be a little over the top? (or significant other, or sibling, or burning the house down..name your poison.)Just my opinion there.(no prob)
on the second page... and no one finds it interesting odd that this ground choke is a differential inductor, one inch in diameter, weighing 1 ounce and yet, it is rated 16 amps and 4 milli Henrys?????????Well, actually, not at the same time....
Sorry, yes, jn. And Millionth is the spell-check word that comes up for milliohm; a habitual mistake.
Actually according to what you said, a 4mh device is perfectly fine but...
jn, I thought you were saying the induction device would become thermal? I don't think "thermal" is an overly complicated function.
"Dozens of them in a row" virtually guarantees that you have moved the fault current from the magnetic regime of the load panel circuit breakers into the thermal regime.
I'm contacting the company because several factors will influence our concerns here about safety. There are simply questions not answered.
jn, might I suggest that you do your best to explain with information, and not a projection of how you feel people need to be safe. For example Elizabeth's values on safety vs. sound quality vs. risk vs. family, etc may be different than yours.
If we wanted to be really safe we'd just not use electricity... Yet for whatever reason we have been using since the dark days when almost all electrical stuff was much more dangerous than anything discussed in this thread. I mean AC receptacle sockets way back would fail by shooting a fireball out of them... Anyway, give people all the information they can possibly use and then accept that they can do whatever they want, wrong or right, because they are sentient. Become concerned when they are wiring public buildings and make them stand up to code.
But as you may imagine I don't live with the safety that you'd promote.
But your position seems to be to ignore safety problems because you haven't experienced it? Do you believe that is a reasonable stance to present on a DIY forum?jn
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