A new Forum: High Voltage? Have your say.. - Page 2 - Electronic Circuits Projects Diagrams Free

Menticol · 11th October 2009, 03:34 PM

YEAH!

But Hey! I have seen this same thread before!

At that time, they concluded that It would be too dangerous and non viable, because any shocked person would be a headache in legal and ethical terms for the forum.

I disagree. People who is incapable of following the advice and/or warnings of more experienced persons (even when the advice may be just: "No" or "Don't Do it" will injure themselves in a great variety of ways, no electricity required.

And about the misuse the information shown here... they will do the same with everything on the net, no electricity required.

So, instead of protecting anybody or anything with the "non HV" policy, we are privating ourselves of exchanging very nice information.

1) A simple disclaimer must be added, so Electromaster can sleep well: "Everyone's under its own risk" Entering or posting on the HV section means that the user acepted it.

2) A series of Basic HV Safety Guidelines. Here they are!
Safety Guidelines for High Voltage and/or Line Powered Equipment

3) I'm a noob, and I will remain as one for a very long time. But watching other noob's posting "I want make tezlacoil send me diagram now" drives me nuts. As the sticky thread says, ignoring them is a good measure, to be maintained from the birth of the section.

Sceadwian · 11th October 2009, 05:46 PM

I think the current forums generally tend to absorb the HV posts well, but it might not be a bad idea, it is an interesting part of electronics. I find it a little amusing about the legalities of many HV devices though, specifically sparkgap tesla coils and most other tesla coil designs. Seems a fuzzy area considering how hardcore many users (myself included) come down on people that want to make jammers or the locking of piracy related threads. The RF output of even a moderatly powered tesla coil breaks just about every countries airwave non-interference laws.

Warpspeed · 11th October 2009, 08:01 PM

Quote:

Originally Posted by Sceadwian

. The RF output of even a moderatly powered tesla coil breaks just about every countries airwave non-interference laws.

You could also say the same thing about any type of arc welder.

Sceadwian · 11th October 2009, 08:12 PM

The voltage and frequency an arc welder operates at are several orders of magnitude less than a tesla coil, just high current. The distance a tesla coil spark jumps is so long in many cases the ionized streamer itself will act as an antenna, and the driven frequency is so high in harmonic content that it reaches well up into the AM band. The distance an arc welder jumps at is so small it's effective radiated power would be very low. I've never used any Tesla coils myself or tested them with a radio, but their basic operating principles make them a fantastic possible source of RF noise over a huge band.

Warpspeed · 11th October 2009, 08:47 PM

Quote:

Originally Posted by Sceadwian

The voltage and frequency an arc welder operates at are several orders of magnitude less than a tesla coil, just high current. The distance a tesla coil spark jumps is so long in many cases the ionized streamer itself will act as an antenna, and the driven frequency is so high in harmonic content that it reaches well up into the AM band. The distance an arc welder jumps at is so small it's effective radiated power would be very low. I've never used any Tesla coils myself or tested them with a radio, but their basic operating principles make them a fantastic possible source of RF noise over a huge band.

Once an arc is formed the wide band noise current in some fairly long cables is huge, maybe several hundreds of amps.
It is not the actual arc that radiates, but the fairly effective antenna formed by the long welding cables.

Sceadwian · 12th October 2009, 12:29 AM

You may be right, just everything about Tesla coils screams bad for RF devices to me =) I have very little experience in the HV department though, so on that note I officially endorce the creation of an HV forum. I know entire other forum sites are devoted exclusivly to the HV stuff, can't hurt to have a corner here to attract some of the HV brainiacs out there =) I'd like to learn more, like many people plasma globes and jacobs ladder have fascinated me since I was a kid. I've killed a meter already trying to measure the AC voltage using a sheet of tin foil to capacitive couple to the front a 25" TV. I'd like to know enough to have some fun be be safe.

***ElectroMaster*** · 12th October 2009, 12:59 AM

Hi Guys,

The forum is now live. I've created it as a sub forum of General Electronics Chat. I have also written to the owners of RepairFaq.org to see if we can use their safety guidelines.

If anyone wishes to write a disclaimer them self please do and PM me.

Regards,
EM

killivolt · 12th October 2009, 02:26 AM

Quote:

Originally Posted by ElectroMaster

Hi Guys,

The forum is now live. I've created it as a sub forum of General Electronics Chat. I have also written to the owners of RepairFaq.org to see if we can use their safety guidelines.

If anyone wishes to write a disclaimer them self please do and PM me.

Regards,
EM

EM, I'm thinking as it is with any legal issue activating this forum without a disclaimer and agreement may give rise to legal argument.

I am a member and wish this forum to continue un-inhibited.

kv

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11th October 2009, 03:34 PM	#16
Menticol	YEAH! But Hey! I have seen this same thread before! At that time, they concluded that It would be too dangerous and non viable, because any shocked person would be a headache in legal and ethical terms for the forum. I disagree. People who is incapable of following the advice and/or warnings of more experienced persons (even when the advice may be just: "No" or "Don't Do it" will injure themselves in a great variety of ways, no electricity required. And about the misuse the information shown here... they will do the same with everything on the net, no electricity required. So, instead of protecting anybody or anything with the "non HV" policy, we are privating ourselves of exchanging very nice information. 1) A simple disclaimer must be added, so Electromaster can sleep well: "Everyone's under its own risk" Entering or posting on the HV section means that the user acepted it. 2) A series of Basic HV Safety Guidelines. Here they are! Safety Guidelines for High Voltage and/or Line Powered Equipment 3) I'm a noob, and I will remain as one for a very long time. But watching other noob's posting "I want make tezlacoil send me diagram now" drives me nuts. As the sticky thread says, ignoring them is a good measure, to be maintained from the birth of the section. __________________ Felipe Last edited by Menticol; 11th October 2009 at 03:41 PM.

11th October 2009, 05:46 PM	#17
Sceadwian	I think the current forums generally tend to absorb the HV posts well, but it might not be a bad idea, it is an interesting part of electronics. I find it a little amusing about the legalities of many HV devices though, specifically sparkgap tesla coils and most other tesla coil designs. Seems a fuzzy area considering how hardcore many users (myself included) come down on people that want to make jammers or the locking of piracy related threads. The RF output of even a moderatly powered tesla coil breaks just about every countries airwave non-interference laws. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har." Last edited by Sceadwian; 11th October 2009 at 05:48 PM.

11th October 2009, 08:12 PM	#19
Sceadwian	The voltage and frequency an arc welder operates at are several orders of magnitude less than a tesla coil, just high current. The distance a tesla coil spark jumps is so long in many cases the ionized streamer itself will act as an antenna, and the driven frequency is so high in harmonic content that it reaches well up into the AM band. The distance an arc welder jumps at is so small it's effective radiated power would be very low. I've never used any Tesla coils myself or tested them with a radio, but their basic operating principles make them a fantastic possible source of RF noise over a huge band. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

12th October 2009, 12:29 AM	#21
Sceadwian	You may be right, just everything about Tesla coils screams bad for RF devices to me =) I have very little experience in the HV department though, so on that note I officially endorce the creation of an HV forum. I know entire other forum sites are devoted exclusivly to the HV stuff, can't hurt to have a corner here to attract some of the HV brainiacs out there =) I'd like to learn more, like many people plasma globes and jacobs ladder have fascinated me since I was a kid. I've killed a meter already trying to measure the AC voltage using a sheet of tin foil to capacitive couple to the front a 25" TV. I'd like to know enough to have some fun be be safe. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har." Last edited by Sceadwian; 12th October 2009 at 12:32 AM.

12th October 2009, 12:59 AM	#22
*ElectroMaster*	Hi Guys, The forum is now live. I've created it as a sub forum of General Electronics Chat. I have also written to the owners of RepairFaq.org to see if we can use their safety guidelines. If anyone wishes to write a disclaimer them self please do and PM me. Regards, EM __________________ ▌ Electro Tech Online Owner ▌ Need to contact me? Send me a Private Message. ▌ Verification Email didn't arrive? See this thread.