On 9/24/21 10:58 PM, Owen DeLong via NANOG wrote: > Meh… Turn off power supply input switch, open chassis carefully, apply > high-wattage 1Ω resistor across capacitor terminals for 10 seconds. >
If dealing with a charged capacitor, do not use a low resistance such as a ohm. This is the same as using a screwdriver, and will cause a big arc. You want to use a 100k ohm device for a couple seconds, this will bleed it off over 5-10 seconds. Most (all?) power supplies will have a bleeder over any large value caps, and will likely be shielded/encased near the input anyways. If you let it sit for 5-10 minutes the leakage resistance will dissipate the charge in any typical capacitor. -- Bryan Fields 727-409-1194 - Voice http://bryanfields.net
