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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Question on Bussman Fuses BAF2 and FNM2
I blew the fuse on my Powermatic lathe today when I miswired a
component in the circuit. The original fuse was probably as old as the lathe which is about 30 years old. It was a Bussman BAF2. When it blew all of the "real" electric stores were closed for the day and will not ope until Monday. I found Bussman FNM2 which is the same size but it is not an instant blow like the BAF2. The FNM2 is a time delay fuse and Bussman's catalog said it was for inductive circuits. The BAF2 states that it is for non-inductive circuits. This fuse protects the coil on the lathe. Any thoughts on temporarily using this fuse until Monday? I have corrected the wiring error and everything should be OK but what will happen to the coil if this is not a "quick blow" and there is a short or fault? Thanks for any help. -Steve |
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wrote in message oups.com... I blew the fuse on my Powermatic lathe today when I miswired a component in the circuit. The original fuse was probably as old as the lathe which is about 30 years old. It was a Bussman BAF2. When it blew all of the "real" electric stores were closed for the day and will not ope until Monday. I found Bussman FNM2 which is the same size but it is not an instant blow like the BAF2. The FNM2 is a time delay fuse and Bussman's catalog said it was for inductive circuits. The BAF2 states that it is for non-inductive circuits. This fuse protects the coil on the lathe. Any thoughts on temporarily using this fuse until Monday? I have corrected the wiring error and everything should be OK but what will happen to the coil if this is not a "quick blow" and there is a short or fault? Thanks for any help. -Steve You haven't had a fuse quandary until you try and ascertain what gauge wire you will use to bypass the fuse to get a job done. |
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Cydrome Leader wrote:
Tom Gardner wrote: wrote in message groups.com... I blew the fuse on my Powermatic lathe today when I miswired a component in the circuit. The original fuse was probably as old as the lathe which is about 30 years old. It was a Bussman BAF2. When it blew all of the "real" electric stores were closed for the day and will not ope until Monday. I found Bussman FNM2 which is the same size but it is not an instant blow like the BAF2. The FNM2 is a time delay fuse and Bussman's catalog said it was for inductive circuits. The BAF2 states that it is for non-inductive circuits. This fuse protects the coil on the lathe. Any thoughts on temporarily using this fuse until Monday? I have corrected the wiring error and everything should be OK but what will happen to the coil if this is not a "quick blow" and there is a short or fault? Thanks for any help. -Steve You haven't had a fuse quandary until you try and ascertain what gauge wire you will use to bypass the fuse to get a job done. Ha, correct. I well remember one dark night in Viet Nam when I discovered that the top three inches of a center tent pole for a gp medium when hack sawed off would work as a replacement for a FRN of any amperage. No problem, no quandry! George Vigneron |
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On Sun, 02 Oct 2005 06:40:28 -0500, George wrote:
Cydrome Leader wrote: Tom Gardner wrote: wrote in message egroups.com... I blew the fuse on my Powermatic lathe today when I miswired a component in the circuit. The original fuse was probably as old as the lathe which is about 30 years old. It was a Bussman BAF2. When it blew all of the "real" electric stores were closed for the day and will not ope until Monday. I found Bussman FNM2 which is the same size but it is not an instant blow like the BAF2. The FNM2 is a time delay fuse and Bussman's catalog said it was for inductive circuits. The BAF2 states that it is for non-inductive circuits. This fuse protects the coil on the lathe. Any thoughts on temporarily using this fuse until Monday? I have corrected the wiring error and everything should be OK but what will happen to the coil if this is not a "quick blow" and there is a short or fault? Thanks for any help. -Steve You haven't had a fuse quandary until you try and ascertain what gauge wire you will use to bypass the fuse to get a job done. Ha, correct. I well remember one dark night in Viet Nam when I discovered that the top three inches of a center tent pole for a gp medium when hack sawed off would work as a replacement for a FRN of any amperage. No problem, no quandry! George Vigneron One of the local electrical houses has a plaque with various items marked as fuse replacements, and their amp ratings empty 22lr cartridge was rated at 50 amps 16penny nail was rated at 100 amps etc etc etc.. Funny as hell Gunner, who has wrapped a burned out automotive fuse with cigarette foil to make it home. |
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" wrote:
I blew the fuse on my Powermatic lathe today when I miswired a component in the circuit. The original fuse was probably as old as the lathe which is about 30 years old. It was a Bussman BAF2. When it blew all of the "real" electric stores were closed for the day and will not ope until Monday. I found Bussman FNM2 which is the same size but it is not an instant blow like the BAF2. The FNM2 is a time delay fuse and Bussman's catalog said it was for inductive circuits. The BAF2 states that it is for non-inductive circuits. This fuse protects the coil on the lathe. Any thoughts on temporarily using this fuse until Monday? I have corrected the wiring error and everything should be OK but what will happen to the coil if this is not a "quick blow" and there is a short or fault? Thanks for any help. -Steve Well, wherever the fault is will be ez to diagnose, it will be the burned up parts. You could go to your local radio shack and get a 2 amp fast blow glass fuse and one of those inline fuse holders and put that in. If you didn't fix your initial problem, you will be happier. Wes |
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According to Gunner Asch :
On Sun, 02 Oct 2005 06:40:28 -0500, George wrote: [ ... ] One of the local electrical houses has a plaque with various items marked as fuse replacements, and their amp ratings empty 22lr cartridge was rated at 50 amps 16penny nail was rated at 100 amps etc etc etc.. So -- what is the rating for a still loaded .22LR? It would probably cook off at some lower current than the empty could handle. I guess that it could count as a slow-blow in that mode. :-) Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
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#9
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On Mon, 03 Oct 2005 10:14:56 GMT, with neither quill nor qualm, Gunner
Asch quickly quoth: On 3 Oct 2005 05:16:16 GMT, (DoN. Nichols) wrote: So -- what is the rating for a still loaded .22LR? It would probably cook off at some lower current than the empty could handle. I guess that it could count as a slow-blow in that mode. :-) I can honestly state that a 9vt battery pack for an old Sunpack flash will set one off. But it has to be in the pocket of a brand new down filled parka. ROTFL! So, how much of an explosion did you feel, or did it just pop and set the jacket on fire as you scrambled out of it? g -- "Most Folks Are As Happy As They Make Up Their Minds To Be" -Abraham Lincoln ----------------------------------------------------------- www.diversify.com - Happy Website Development |
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"Gunner Asch" wrote in message ... On Sun, 02 Oct 2005 06:40:28 -0500, George wrote: empty 22lr cartridge was rated at 50 amps What's the rating for a loaded 22lr ? |
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On Mon, 03 Oct 2005 05:21:44 -0700, Larry Jaques
wrote: On Mon, 03 Oct 2005 10:14:56 GMT, with neither quill nor qualm, Gunner Asch quickly quoth: On 3 Oct 2005 05:16:16 GMT, (DoN. Nichols) wrote: So -- what is the rating for a still loaded .22LR? It would probably cook off at some lower current than the empty could handle. I guess that it could count as a slow-blow in that mode. :-) I can honestly state that a 9vt battery pack for an old Sunpack flash will set one off. But it has to be in the pocket of a brand new down filled parka. ROTFL! So, how much of an explosion did you feel, or did it just pop and set the jacket on fire as you scrambled out of it? g Pretty good POP and a snow storm of feathers. Happened while I was standing talking to my kids princible in the lobby of the school theater. It was...interesting. Gunner Confronting Liberals with the facts of reality is very much akin to clubbing baby seals. It gets boring after a while, but because Liberals are so stupid it is easy work." Steven M. Barry |
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#12
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On Mon, 03 Oct 2005 14:38:21 GMT, "Tom Gardner"
wrote: "Gunner Asch" wrote in message .. . On Sun, 02 Oct 2005 06:40:28 -0500, George wrote: empty 22lr cartridge was rated at 50 amps What's the rating for a loaded 22lr ? Mythbusters tried that - to get a .22 LR shell to go off reliably you need more than just the roughly 20 amp headlight load. You need a short circuit across the fuse holder, a good 100A or more, and the shell will fire like you pulled the trigger... But then again, if you blew the fuse in the first place, you might have a short in the wiring harness that will ground out again with the rifle shell subbing for the last blown fuse... -- Bruce -- -- Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop Electrician for Westend Electric - CA726700 5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545 Spamtrapped address: Remove the python and the invalid, and use a net. |
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#13
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On Mon, 03 Oct 2005 20:59:08 GMT, Bruce L. Bergman
wrote: On Mon, 03 Oct 2005 14:38:21 GMT, "Tom Gardner" wrote: "Gunner Asch" wrote in message . .. On Sun, 02 Oct 2005 06:40:28 -0500, George wrote: empty 22lr cartridge was rated at 50 amps What's the rating for a loaded 22lr ? Mythbusters tried that - to get a .22 LR shell to go off reliably you need more than just the roughly 20 amp headlight load. You need a short circuit across the fuse holder, a good 100A or more, and the shell will fire like you pulled the trigger... thats for a fast fire. Try it at home with a powersupply and do some timing of cook offs. But then again, if you blew the fuse in the first place, you might have a short in the wiring harness that will ground out again with the rifle shell subbing for the last blown fuse... -- Bruce -- Confronting Liberals with the facts of reality is very much akin to clubbing baby seals. It gets boring after a while, but because Liberals are so stupid it is easy work." Steven M. Barry |
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