Search found 545 matches: +voltage +safety

Searched query: +voltage +safety

by Jim Kovalchick
Wed Dec 12, 2018 11:46 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Creation, usage, and destruction of a cathode
Replies: 12
Views: 1323

Re: Creation, usage, and destruction of a cathode

... like you want to keep yourself safe. I would like to offer an important safety tip to keep you and others out of trouble. I noticed that you used ... to pop off when you least expect it. If it does when you are applying voltage with your power supply then the chamber becomes dangerous. You should ...
by ian_krase
Sun Nov 25, 2018 5:14 am
Forum: Advanced Technical Discussion Area
Topic: Harbor Freight freebie meters
Replies: 12
Views: 1650

Re: Harbor Freight freebie meters

I'm not sure if the meter ratings should be Considered ridiculous safety nerd stuff. I'm not willing to use HF meters, or most other cheapie meters, on moderate-voltage high-current stuff like wall current.
by Richard Hull
Thu Nov 22, 2018 9:13 am
Forum: Advanced Technical Discussion Area
Topic: Harbor Freight freebie meters
Replies: 12
Views: 1650

Re: Harbor Freight freebie meters

... one teraohm resistor we would come across. Unfortunately the highest voltage you can read on most Keithley electrometers is typically 10 volts. ... for. The new batch of H.F. free meters, probably to satisfy ridiculous safety nerd standards, no longer have a 1KV DC range or a 750volt AC range. ...
by Dennis P Brown
Tue Nov 13, 2018 1:35 pm
Forum: Please Introduce Yourself
Topic: Hello from Panama
Replies: 1
Views: 478

Re: Hello from Panama

... grid. Synthetic automotive oil works very well as a high voltage tolerant oil. For a demo fusor, a good gasket material is an old ... vacuum pump to that short metal tube - the pump MUST be grounded for safety.) Using the wine bottle, then a flat metal base plate can be used ...
by Richard Hull
Tue Oct 30, 2018 9:09 pm
Forum: FAQs: High Voltage
Topic: #5 FAQ - Grounding in a fusor system
Replies: 8
Views: 3657

Re: #5 FAQ - Grounding in a fusor system

... star ground is a great idea. However, many power supplies of very high voltage have one pole of the output voltage case grounded as a safety measure. This forces you to do some internal wiring reworking to link the current system ...
by Dennis P Brown
Mon Oct 15, 2018 2:23 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Jan Ruge Fusion Attempt @ Chaos Darmstadt
Replies: 13
Views: 3200

Re: Jan Ruge Fusion Attempt @ Chaos Darmstadt

... target using reverse biasing (this can be a challenge with your high voltage target - that is why I "grounded" my target relative to the gun so ... bias my target. Your method is certainly better suited for high voltage safety as long as your vacuum housing near the HV input is well grounded. ...
by Rich Feldman
Sun Sep 23, 2018 10:51 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Operating three phase high voltage power supply on single phase power
Replies: 10
Views: 2145

Re: Operating three phase high voltage power supply on single phase power

... thing: no overcurrent protection device may interrupt the connection between the boost secondary winding and the hots side of primary winding. The safety reason is obvious on inspection of a schematic, IIRC. Beware of free advice from the Internet. Hey, how about doing what amateur machinists have ...
by Dan Knapp
Sun Sep 23, 2018 7:00 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Operating three phase high voltage power supply on single phase power
Replies: 10
Views: 2145

Operating three phase high voltage power supply on single phase power

... to time, a bargain appears on eBay in the form of a high power high voltage power supply that uses three phase power input. Since most fusor ... consume wasted power turning the idler motor, are noisy, and present a safety hazard with the turning shaft (sealed idlers with no shaft are available, ...
by Dennis P Brown
Tue Sep 11, 2018 10:45 am
Forum: Images du Jour
Topic: My first plasma
Replies: 12
Views: 2517

Re: My first plasma

... of a real fusion power supply for very long. Of course, always wear safety glasses and and ALWAYS surround any glass vacuum chamber that is under ... have a "ball" end piece on any wire end to prevent a focused high voltage point from developing just as it did in your system. I do, in fact, ...
by Joshua Guertler
Fri Aug 10, 2018 10:31 pm
Forum: New User Chat Area
Topic: Use of a Precipatator Power Supply
Replies: 19
Views: 3293

Re: Use of a Precipatator Power Supply

... questions. Both of the sellers contacted told me that at full power and voltage output with the positive terminal to ground (0 V), both power supplies ... as I continue to build my HV system. I also think that it's a great safety resource for anyone who is new to HV components and sources. Sincerely, ...