- Fuses, Am I That Stupid ? - 5 Updates
- can bad cap = hot motor? - 1 Update
- Casette Tape vs Online Music continuous play - 1 Update
- Casette Tape vs Online Music - 1 Update
"jurb...@gmail.com" <jurb6006@gmail.com>: Aug 19 02:06PM -0700 Google fucked this all up, up sorry to say goodbye. |
Phil Allison <pallison49@gmail.com>: Aug 19 03:42PM -0700 Ralph Mowery wrote: ================== > it is really they are to protect the wiring and the power supply that is > feedig the device. > Without a fuse, the wires could get hot enough to cause a fire. ** Supply line fuses limit damage to the following circuitry - particularly steel core transformers and other heat sensitive parts. Internal supply wiring should be and normally IS adequate to trip external breakers without burning up. That makers specify a correct supply fuse to fit tells you it is not just for cable protection. However, the biggest mistake is to think user replaceable fuses actually protect anything. ..... Phil |
Pimpom <nobody@nowhere.com>: Aug 20 12:50PM +0530 On 8/19/2020 7:11 PM, Phil Allison wrote: > Cos the Amp rating is for the max holding value. > Slow acting ( ie T for trage ) types open at current levels not much above their rating, given enough time. > ..... Phil I stand corrected. I just looked up some current datasheets and it's hours at 100% and several secs at 200%. I haven't updated myself and was thinking of some mfr's data and my own test from long ago which were around 30 secs at 100% and 1 sec at 200%. |
Michael_A_Terrell <terrell.michael.a@gmail.com>: Aug 20 03:26AM -0400 legg wrote: > <jurb6006@gmail.com> wrote: > 3AG is a series of glass bodied low voltage fuses. > (Automotive Glass) Automotive fuses were SFE, until they switched to those plastic, plug in type. They were rated for 32VDC maximum, and they got longer as the current rating went up, to prevent you from putting in a much larger fuse. Our shop used to stock over 250 series and values of fuses, including the Belfuse chemical fuses. -- Never piss off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
"ohg...@gmail.com" <ohger1s@gmail.com>: Aug 20 06:51AM -0700 > fuse. Our shop used to stock over 250 series and values of fuses, > including the Belfuse chemical fuses. > -- Uh oh! You did *not* call them "chemical" fuses!!! Standby... |
Michael_A_Terrell <terrell.michael.a@gmail.com>: Aug 20 03:15AM -0400 > Modern motor run caps are all large. They use a lot of material. It > can't be they do this just because of tradition. Start caps are AC electrolytics. Run capacitors are AC rated film, or in case of that 80 year old cap, paper insulation. They are large, to dissipate the heat from continuous operation. -- Never piss off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
bruce bowser <bruce2bowser@gmail.com>: Aug 19 12:18PM -0700 I can already see where this is going with online continuous play. They are going to interrupt it every 3 minutes with commercials. I'll go back to the 1980's casette tapes before this. |
bruce bowser <bruce2bowser@gmail.com>: Aug 19 12:09PM -0700 I can already see where this is going with online continuous play. They are going to interrupt it every 3 minutes with commercial. I'll go back to the 1980's casette tapes before this. |
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