Electric Tester

There is a fairly high value resistor in series between you and earth.

If you remove it and bypass it, then you will get a shock!

Any tester works by the skill, capability and training of the operator using it. For a more refined detailed answer, you will have to identify much more clearly what kind of a tester you have and how you are using it.

I'm very worried though that you believe that you should be getting a shock from whatever you are doing. Until you get a good understanding of what is going on, stop whatever you are doing. With the exception of some carefully designed medical devices, stun guns and a few very kinky toys; people should never expect to get an electric shock.

This isn't another part of your thread

http://cr4.globalspec.com/thread/53840/High-Voltage-Electric-Shock-Near-HV-or-EHV-Busbar,

or is it?

I didn't put these two threads together earlier. We maybe working on a Darwin award here.

Hello redfred.

Let's hope he doesn't become a Darwin Award winner

I agree, whole heartedly. But if he didn't learn from the earlier thread, the qualified people around him, and his formal EE schooling then I only hope that he doesn't take anyone else with him.

What you say a tester is very complicated to explain? 'nb:those who are working for awards'

Boy, you'd better didn't say you're a ee graduate.

First of all, you are not ground in no ways, you're just capacitively coupled to the grid all over your building, that's why you get the lamp lit when checking a hot line while touching the other probe or ground wire; you can approach the same results if you use a meter, not reliable though (nor advisable either, 'cus one day you might happen to be using a low impedance meter, if so, you WILL get zapped if touching ground or other phase).

You can verify what I say touching the probe of a scope and see that the waveform has exactly the frequency of your supply lines.

Yahlasit

OK, you would be ground (or better said, grounded) if standing bare-footed.

Yahlasit

I dont think we can help you on being graduate EE.

I submit it as 'know' not 'now' i am not doing any experiment here with myself. The forum is edited by someone.

Thats great me capacitively connected to ground or series to high resistance which one is the right sir?

Both are correct. Go back to your Kirchoff circuit analysis. That is if you really did obtain an EE degree. Oh and if you did, do your school a favor and don't mention which school you graduated from.

I think he means Elementary Education.

Quite possibly EE is an Elementary Education level in the Electrical Engineering section here. If your correct then this is CRIMINAL.

Oh, this is just great.

Original post edited by CR4 moderation team, and changes the context of the question.... boy oh boy.

[edit, to redfred] I believe he is correct. I believe the phrase "The circuit is closed now" was "Know" in the original posting. The posting was heavily edited for language and readability. I hope I don't have to bet my house on this, though... I'm not that sure. CR4 Admin? Your turn.

Yeah I did overlook that "now" but the English is so fractured that I overlooked that one. The EE fundamental knowledge though are clearly so lacking that I seriously worry for the health and safety of this person working around the lethal voltages that he mentioned in the earlier thread. At the very least I had hoped for a manufacturer's name or model number of this "tester" to be able to even start to assist this person.

I respect you Mr. Redfred.I expect the working principle of tester and you can stop worrying about the person.some got a different style of asking to get a real answer. This forum is a great help for me you realise if you studied here and try to get a good job.

"Well, nobody told me about the break down in communications".

hithuanand do you mean one of these

?????

Or maybe the older version for that had two leads. The EE's, myself included, used to amaze our liberal arts friends in college by putting one end into a receptacle and then grabbing the other lead and lighting the bulb. We would tell them we had very high resistance from being juiced so many times. They all bought this line.

Yes that is the one i was talking about.thanks for adding picture Randell.

I looked into the edit history - the title was made Proper Case but that is the only edit that was made to the original post on this thread.

He may be referring to those little screwdrivers with the resistor and NEON bulb. The voltage does not flow through you because it is a gas which is stimulated to glow under voltage. If it was a filament then you would definitely feel the not so friendly tingles. You can still get a little sting if your bare arm is resting on the metal enclosure.

In the other thread, the OP was asking about a 110 kilo-volt system. Pointing a screw driver near this kind of voltage will quickly grant this person a Darwin award. We do not know what this tester is nor the voltages present. I won't say that anything here should be considered safe.

Thanks Mr. Joe,thats the answer i was dying for i feel confident about tester now. If you got time please be kind to explain my other questions like what happens in a 1000V meggar.

Thanks for your vote of confidence Mr Hithuanand, but I seem to have missed the question about the 1000 v megger, could you reply to the this thread with the question again please

Best Regards

Joe

Thank you for showing interest Mr. Joe i checked about megger updates its well discussed to clear my doubts. have a nice day.

What if 400000ohms ie. The series resistance is lost and bulb is connected series with body? (lets assume the neon bulb wont get fused)

You could get the Darwin award while lighting up the bulb brilliantly.

I tell ya, he's gonna do it.

No man i was just wondering what are the possible hazards happen if someone use a damaged tester and to bring modifications in future if possible. Here we get a tester we can remove resister,spring and bulb just by opening its cap. what you think ? when i was a kid i got shocked because i used a damaged one.

when i was a kid i got shocked because i used a damaged one.

Well they do say "what doesn't kill you makes you stronger" but it won't make you smarter. One of the problems with these devices is that current by design does travel through the body. The resistor and the handle insulation limits this current to acceptable magnitudes most of the time. But as you found out as a kid, it only takes one of several possible single point failures for one to get shocked with one of these tools.

These tools have been banned from my work site. Please be careful.

I've never suspected this forum could be so entertaining..