+++++++++++++++++++ ++++++++++++++++++ Reply-To: From: "Tom Crites" To: Subject: Re: [Elecraft] Anderson Power Pole connectors Date: Sun, 21 Apr 2002 06:51:00 -0400 When making a set of cables, shouldn't each "source pigtail" be fused? I believe the K2 manual states that when running off a battery you should always fuse the supply cable as close to the battery as possible. 73, Tom +++++++++++++++++++ Date: Thu, 18 Apr 2002 19:09:02 -0600 To: elecraft at mailman.qth.net From: =?iso-8859-1?Q?=22D=2ER=2E_Weiss_KI=D8RP=22?= Subject: [Elecraft] Anderson Power Pole connectors Many thanks to all who contributed to the recent discussion of Anderson Power Pole connectors. You motivated me to build a complete set of cables for my radios and batteries using APP connectors. I bought mine from www.powerwerx.com, which supplies roll pins with the connectors. I am using the roll pins, and they appear to work just fine. Thanks again. Dave Weiss KI0RP K2 #2249 ++++++++++++++++++++ Reply-To: "Bob Lewis (AA4PB)" From: "Bob Lewis (AA4PB)" To: Subject: Re: [Elecraft] Anderson Power Pole connectors Date: Sun, 21 Apr 2002 07:04:30 -0400 > believe the K2 manual states that when running off a battery you should > always fuse the supply cable as close to the battery as possible. That's always a good idea. The K2 has a fuse that will protect things from a short inside the K2. A fuse near the battery will protect from a short in the cable or connections (the coaxial power connector being the most likely). ++++++++++++++++++++ Date: Sun, 21 Apr 2002 06:55:15 -0700 From: Larry Tree Tyree N6TR To: Tom Crites Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Anderson Power Pole connectors On Sun, Apr 21, 2002 at 06:51:00AM -0400, Tom Crites wrote: > When making a set of cables, shouldn't each "source pigtail" be fused? I > believe the K2 manual states that when running off a battery you should > always fuse the supply cable as close to the battery as possible. A very good point Tom. I once was visiting a friend's shack and was crawling around on the floor and found a very hot zip cord - probably 16 gauge. I had moved a table and put a leg of it on top of the wire and it shorted. It was hooked up to something like a 60 amp supply without any fuse. I am glad I found it - because it certainly was a fire hazard. The important thing is to fuse any conductor with a fuse appropriate for the size of the conductor. If you short the end of the wire, it must blow the fuse. Tree N6TR ++++++++++++++++++++++ Date: Sun, 21 Apr 2002 09:47:47 -0500 To: , elecraft at mailman.qth.net From: Tom Hammond =?iso-8859-1?Q?N=D8SS?= Subject: Re: [Elecraft] Anderson Power Pole connectors Tom: That's always the best idea. Esp. if you are using a power source of (relatively) unlimited current, as when using a vehicluar battery. If you are using a power supply of 'modern' manufacture, virtually all of them are now designed with build-in current fold-back protection which will force them to (essentially) zero voltage/current output if they see a dead short. But it never hurts to add that small (and relatively low cost) extra measure of safety. Tom Hammond N0SS At 05:51 AM 4/21/02, you wrote: >When making a set of cables, shouldn't each "source pigtail" be fused? I >believe the K2 manual states that when running off a battery you should >always fuse the supply cable as close to the battery as possible. > >73, >Tom ++++++++++++++++++++++ From: "Rod N0RC" To: "Larry Tree Tyree N6TR" , "Tom Crites" Cc: Subject: Re: [Elecraft] Anderson Power Pole connectors Date: Sun, 21 Apr 2002 09:26:59 -0600 Larry, ----- Original Message ----- From: "Larry Tree Tyree N6TR" To: "Tom Crites" Cc: Sent: Sunday, April 21, 2002 7:55 AM Subject: Re: [Elecraft] Anderson Power Pole connectors > The important thing is to fuse any conductor with a fuse appropriate > for the size of the conductor. If you short the end of the wire, > it must blow the fuse. > A better idea to fuse for the load not the wire. 73, Rod N0RC Ft Collins, CO ++++++++++++++++++++++ From: "Lyle Johnson" To: Subject: RE: [Elecraft] Anderson Power Pole connectors Date: Sun, 21 Apr 2002 11:28:53 -0700 OK, My turn :-) In a power disrtibution system (RigRunner, a 747, your house wiring, etc.) you fuse at the source for the safe wire current carrying capacity. At the load end, you fuse for the load. That's why your house wiring is matched to the circuit breaker rating, not the current requirement of the frequency counter you might plug in. And that is why your K2 is protected internally for the current it requires, not the current its exernal power wiring might be able to accomodate. Enjoy! 72/73, Lyle KK7P ++++++++++++++++++ Date: Sun, 21 Apr 2002 15:06:02 -0400 (EDT) From: kc4kgu at ENTERZONE.NET To: Tom Crites Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Anderson Power Pole connectors On Sun, 21 Apr 2002, Tom Crites wrote: > > When making a set of cables, shouldn't each "source pigtail" be fused? I > believe the K2 manual states that when running off a battery you should > always fuse the supply cable as close to the battery as possible. > > 73, > Tom > The RIGrunner is fused individually at every powerpole connector. 73 de John - KC4KGU K2 #2490 ++++++++++++++++++++