Search found 1197 matches: safety

Searched query: +safety

by Trent Carter
Sat Aug 31, 2019 10:13 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: 1D Cathode with Neutron Run
Replies: 3
Views: 365

1D Cathode with Neutron Run

... how to Pulse Arc Weld, and I am fairly sure he was making a 2D Cathode. Post welding put a brass brush on a dremel and brush the welds shiny. Wear safety goggles or you will lose an eye. Brass dremel brushes release brass shrapnel. Vacuum Chamber: If you are not jealous of my Fusion Mark III chamber, ...
by Mark Rowley
Fri Aug 30, 2019 12:04 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Precipitator HV Supply Hacking
Replies: 9
Views: 924

Re: Precipitator HV Supply Hacking

... time with the original voltage control pot. As indicated by others, the added capacitance of the 8’ extension lead could’ve been the culprit. For safety, it’ll be a simple task to add an acrylic extension to the control. Mark Rowley
by Mark Rowley
Tue Aug 13, 2019 12:39 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Flashover at 35kV!
Replies: 5
Views: 630

Flashover at 35kV!

... him to flirt with 90kV potentials. Not that I’d ever go 90kV (or even 60Kv) but it would make for a stable arrangement for 50kV with a robust safety margin. The other pics are of Carl’s completed socket, my BeO feedthru on my system, and my newly purchased parts for the oil socket. To make ...
by Mark Rowley
Sun Aug 11, 2019 2:59 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Fusion Success with Precipitator Power Supply
Replies: 31
Views: 3177

Re: Fusion Success with Precipitator Power Supply

... the 60). It would be crucial to make sure ones HV feedthrough and leads can withstand the full potential of this type of supply PLUS a healthy safety margin. Although they are comparatively tough, I'm skeptical if they can survive arcing for more than a couple of seconds. Beefing up the HV ...
by Liam David
Sat Jul 06, 2019 4:33 pm
Forum: Images du Jour
Topic: I'm back, and fusing
Replies: 5
Views: 2066

I'm back, and fusing

... (the Spellman has some output capacitance) I raised the voltage first to 20kV and then 30kV as I got the hang of it. As mentioned before the safety features of the Spellman supply can be tricky to handle, and the plasma extinguished numerous times due to over-current and arc protection. I'm ...
by Michael Bretti
Fri Jul 05, 2019 2:11 pm
Forum: The Trading Post
Topic: [REQUEST] 1 kV 10 A Diode and 10 kV Cable
Replies: 8
Views: 2637

Re: [REQUEST] 1 kV 10 A Diode and 10 kV Cable

... a major spike occur, the diode is actually designed to fail and short the HV supply through a high wattage, low ohm (maybe 1 ohm) resistor for safety. This probably needs to be only 20kV, 1A rated in your case. Finally the third diode stack on the transformer secondary (if you go this route) ...
by Robert Dwyer
Wed Jun 19, 2019 1:36 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Some Beefy Power Supplies
Replies: 2
Views: 2712

Some Beefy Power Supplies

... increadibly high currents at high voltage. I think the two extra ports will help accommidate two ions-guns. While ion sources, there design, and safety, are an interesting topic, I will leave any more discussion as to those sources from myself to the inevitable Ion Gun thread. I do have a plan ...
by Richard Hull
Fri Jun 14, 2019 6:27 am
Forum: Images du Jour
Topic: Neptunium's fusor progress
Replies: 17
Views: 6351

Re: Neptunium's fusor progress

As I mentioned before, you may have a plug or barrier strip on the back of those units. Some HV supplies offer that remote safety switch option. As such, you may have to short two pins on a plug or barrier strip before HV will allow that relay to pull in. If this is the case, an owners ...
by Richard Hull
Wed May 29, 2019 4:57 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Columbus-I Pinch Tube Build
Replies: 31
Views: 16351

Re: Columbus-I Pinch Tube Build

... of rep-rate and current in each pulse. Be mindful of shielding and the inverse square law in this type of experiment as it is, as usual, all about safety from X-rays and not neutrons. Richard Hull
by Mark Rowley
Sat May 25, 2019 12:35 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: High Voltage Feedthru, Richards design
Replies: 9
Views: 6277

Re: High Voltage Feedthru, Richards design

In relation to the maximum shell temperature of the average Fusor, would 550 deg brazing solder be an acceptable choice?

To add a safety measure, a small computer type cooling fan could blow on the insulator during operation.

Mark Rowley