Search found 466 matches: +voltage +safety

Searched query: +voltage +safety

by Tyler Meagher
Fri Feb 08, 2019 2:53 am
Forum: Images du Jour
Topic: Tyler's Demo Fusor
Replies: 7
Views: 3923

Re: Tyler's Demo Fusor

Rich and Dennis, thank you for your comments. I do wear safety glasses when working in the shop and lab. I have a procedure I follow ... and I don’t understand rectified output yet. I am not using high voltage diodes like the demo fusor FAQ diagram <http://www.fusor.net/board/viewtopic.php?f=29&t=4405#p27243>. ...
by Dennis P Brown
Mon Jan 21, 2019 9:26 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Construction of Neutron Grade Fusor
Replies: 45
Views: 17248

Re: Construction of Neutron Grade Fusor

... excellent progress - like getting the plasma under better control. Your voltage (28 kV) is a bit low if your supply is producing under 8 ma; yes, ... distance (and please, no holding the neutron detector) will provide safety (and again, do not sit so the lower body gets x-rays!) A simple metal ...
by Enzo Carter
Wed Jan 16, 2019 3:25 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Construction of Neutron Grade Fusor
Replies: 45
Views: 17248

Construction of Neutron Grade Fusor

... cathode-side-close-IMG_6544.jpg cathode-sphere-IMG_4797.jpg High Voltage feedthrough 25kV rated 50kV tested 3.6mm shaft HV-Feedthrough-IMG_5237.jpg ... a few weeks now and am getting close to something to show to the forum. safety is key so i have not been able to work unsupervised which limits ...
by Enzo Carter
Sun Jan 06, 2019 2:34 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Creation, usage, and destruction of a cathode
Replies: 12
Views: 5134

Re: Creation, usage, and destruction of a cathode

... that collides with a material 'brimsstraholing' and the power supply (voltage and current) is giving the electrons so i think it will be the same ... but for now i will use lead for X-rays and acrylic for high voltage safety. making the acrylic shield today. as for material safety we take it ...
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: 5134

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: 2677

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: 2677

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 Richard Hull
Tue Oct 30, 2018 9:09 pm
Forum: FAQs: High Voltage
Topic: #5 FAQ - Grounding in a fusor system
Replies: 9
Views: 9119

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: 6458

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: 8481

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 ...