Re: [Elecraft] Self-fusing liquid electrical tape
I use maps gas with silvafloss. Have a great day! Bill From: elecraft-boun...@mailman.qth.net on behalf of Roger Steyaert Sent: Friday, June 5, 2020 4:41:16 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape I have 12 ground rods in the ring ground system around my house with the radios in one room inside. the ground rods are all tied to each other and the power ground. I agree the Cad welds can get expensive, that is why I high temperature silver soldered the wire and ground rods together. Not normal soft solder but the high strength, high temperature silver solder used in HVAC systems. This requires a acetylene torch to do the soldering with. this accomplishes the same thing that a CAD weld provides but with less cost if you have gas welding equipment available. What ever you do make sure the system will maintain very good connections over time or you are just giveng yourself a false sense of security that can be very costly both in money and safety over time. Roger K7RXV On 6/5/2020 4:20 PM, Mike Maloney wrote: > Don, Are those all 8 ft ground rods driven vertical in ground without > help from a rock drill? Lots of rock in your area? Mike AC5P > On Friday, June 5, 2020, 03:10:11 PM CDT, W2xj wrote: > > To my mind, false economy. > > Sent from my iPad > >> On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: >> >> >> That is why I used the mechanical clamps. I have 10 ground rods for a >> perimeter ground wire around the house, 6 on the perimeter ground around the >> workshop building (where the antenna feedlines first enter) and another 4 in >> the antenna field. A total of 20 Cad Welds would have exceeded my budget - >> the #4 copper wire was expensive enough! >> All the clamps are above ground a bit, so I can check the tightness with a >> wrench at least once a year. >> In most cases, the perimeter wires are folded back on itself to fit into the >> clamp, so the wire is continuous rather than having cut ends. >> Yes, even the utility ground rod clamp is exposed. The building inspector >> frowned on it until I told him why and he allowed it because I do not (will >> not) mow grass near any of the ground rods. >> >> 73, >> Don W3FPR >> >>> On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: >>> Just look at $11.00 per ground rod connection for Cad-Weld as compared to >>> $1.98 for a mechanical clamp. Which do you think a ham will choose ? >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w...@w2xj.net > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to a...@sbcglobal.net > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9...@live.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
try a 10 tower array. :-) Sent from my iPad > On Jun 5, 2020, at 10:33 PM, Jim Brown wrote: > > I spent a summer during my college years silver-soldering 120 radials to > ground screens for each of the 4-tower array of WSAZ. > > 73, Jim K9YC > >> On 6/5/2020 2:41 PM, Roger Steyaert wrote: >> that is why I high temperature silver soldered the wire and ground rods >> together. Not normal soft solder but the high strength, high temperature >> silver solder used in HVAC systems. This requires a acetylene torch to do >> the soldering with. this accomplishes the same thing that a CAD weld >> provides but with less cost if you have gas welding equipment available. > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w...@w2xj.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
I spent a summer during my college years silver-soldering 120 radials to ground screens for each of the 4-tower array of WSAZ. 73, Jim K9YC On 6/5/2020 2:41 PM, Roger Steyaert wrote: that is why I high temperature silver soldered the wire and ground rods together. Not normal soft solder but the high strength, high temperature silver solder used in HVAC systems. This requires a acetylene torch to do the soldering with. this accomplishes the same thing that a CAD weld provides but with less cost if you have gas welding equipment available. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Brain cramp -- I meant KF7P. 73, Jim K9YC On 6/5/2020 4:06 PM, Dave Cole wrote: Huh? I don't sell them... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/5/20 10:53 AM, Jim Brown wrote: On 6/5/2020 8:17 AM, Phil Kane wrote: For our commercial and public safety communication site grounding systems our firm insists on cad-weld at all exposed and buried connection points but I would suspect that very few hams, let alone residential or even commercial electricians, would go to that length. It was years before I went from mechanical clamps to cadwelds. No question that it's the way to go. Some are packaged much better than others. I prefer the ones where the two powders are packaged separately. NK7Z sells them. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
I'm colorblind. If you're talking about the doobers at the end of each tie over the foot of the rail, they're hold downs for the rails on concrete ties. They take the place of spikes in wood ties whose purpose is to maintain proper separation ["gauge"] between the rails. The rails stand up by themselves. On 6/5/2020 4:14 PM, Dave Cole wrote: Anyone know what those green wires are on each RR cross tie? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/5/20 12:28 PM, Edward T. Tanton wrote: WOW!!! That was so-o-o neat!!! -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of donov...@starpower.net Sent: Friday, June 05, 2020 2:14 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL - Original Message - From: "Jim Brown" To: elecraft@mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k6...@foothill.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Anyone know what those green wires are on each RR cross tie? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/5/20 12:28 PM, Edward T. Tanton wrote: WOW!!! That was so-o-o neat!!! -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of donov...@starpower.net Sent: Friday, June 05, 2020 2:14 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL - Original Message - From: "Jim Brown" To: elecraft@mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Huh? I don't sell them... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/5/20 10:53 AM, Jim Brown wrote: On 6/5/2020 8:17 AM, Phil Kane wrote: For our commercial and public safety communication site grounding systems our firm insists on cad-weld at all exposed and buried connection points but I would suspect that very few hams, let alone residential or even commercial electricians, would go to that length. It was years before I went from mechanical clamps to cadwelds. No question that it's the way to go. Some are packaged much better than others. I prefer the ones where the two powders are packaged separately. NK7Z sells them. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
A way for us no longer young people to drive ground rods is with a SDS construction hammer and a ground rod driving bit. that is what electricians use. I have a layer of shale about 2 feet deep where I live and it takes less that 10 minutes per 8 foot ground rod driven below the surface with this method. You can get the equipment to do this at most tool rental places if you don't have your own. The driver bit for the tool is less very inexpensive at stores such as Lowes. Roger K7RXV On 6/5/2020 4:50 PM, Don Wilhelm wrote: Mike, They are all 8 foot rods and were driven vertically with a fence post driver and then finished off with a sledge. I was 20 years younger at that time, I could not do it today. 3 or 4 rods in a day was all the shoulders could manage. Yes, we hit some small rocks, but they will split is hammered on enough. We did not encounter large rocks when digging the house foundation or the trenches for the ground source heat pump - so it is not too rocky where we are - fist sized at the largest. 73, Don W3FPR On 6/5/2020 4:20 PM, Mike Maloney wrote: Don, Are those all 8 ft ground rods driven vertical in ground without help from a rock drill? Lots of rock in your area? Mike AC5P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k7...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
I have 12 ground rods in the ring ground system around my house with the radios in one room inside. the ground rods are all tied to each other and the power ground. I agree the Cad welds can get expensive, that is why I high temperature silver soldered the wire and ground rods together. Not normal soft solder but the high strength, high temperature silver solder used in HVAC systems. This requires a acetylene torch to do the soldering with. this accomplishes the same thing that a CAD weld provides but with less cost if you have gas welding equipment available. What ever you do make sure the system will maintain very good connections over time or you are just giveng yourself a false sense of security that can be very costly both in money and safety over time. Roger K7RXV On 6/5/2020 4:20 PM, Mike Maloney wrote: Don, Are those all 8 ft ground rods driven vertical in ground without help from a rock drill? Lots of rock in your area? Mike AC5P On Friday, June 5, 2020, 03:10:11 PM CDT, W2xj wrote: To my mind, false economy. Sent from my iPad On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: That is why I used the mechanical clamps. I have 10 ground rods for a perimeter ground wire around the house, 6 on the perimeter ground around the workshop building (where the antenna feedlines first enter) and another 4 in the antenna field. A total of 20 Cad Welds would have exceeded my budget - the #4 copper wire was expensive enough! All the clamps are above ground a bit, so I can check the tightness with a wrench at least once a year. In most cases, the perimeter wires are folded back on itself to fit into the clamp, so the wire is continuous rather than having cut ends. Yes, even the utility ground rod clamp is exposed. The building inspector frowned on it until I told him why and he allowed it because I do not (will not) mow grass near any of the ground rods. 73, Don W3FPR On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: Just look at $11.00 per ground rod connection for Cad-Weld as compared to $1.98 for a mechanical clamp. Which do you think a ham will choose ? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w...@w2xj.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to a...@sbcglobal.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k7...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
On 6/5/2020 12:01 PM, Bob McGraw K4TAX wrote: > I agree with Jim, K9YC on this. Grounding is for lightning > protection. To be effective, it should be outside of the > structure/house and be very low resistance. And all driven grounds > must be bonded back to the AC Mains ground. This is per NEC. Your > equipment, your house, and your life may depend on it being done correctly. Another thing that we do is to bond all of the ground rods in an outside ring which is buried in a trench filled with conductive concrete. A layer of the concrete, than the ground ring, and then another layer of that concrete. Expensive? You betcha, but cheap insurance for sites costing well over a million dollars just for the infrastructure. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Now that was cool. Actually very hot N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of donov...@starpower.net Sent: Friday, June 5, 2020 2:14 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL - Original Message - From: "Jim Brown" To: elecraft@mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: > This is probably overkill for QRP but I wanted to do it right like we used to > do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tony@verizon.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Or expense? Lessee... 20 (ground rods including 5 at the tower) times $4 per clamp, vs $11-15 for little discernible gains.. adding over $300 in my grounding solution. Not a huge amount, but those costs add up quickly. I went with clamps, all buried below grade. I opted to tie the shop (barn) panel rod to the tower and the house panel rod and have a single run out into a field for future (RX antenna) use (and simply more earth contact to dissipate). The copper wire was the cheapest element in play. Rick NK7I On 6/5/2020 10:32 AM, Phil Kane wrote: On 6/5/2020 9:05 AM, Grant Youngman wrote: Cad-weld isn’t expensive — $11-15 per weld depending on where you buy the stuff. Typically sold in kits of 6 one-shot crucibles, and available for varying ground wire sizes on 1/2” or 5/8” ground rods. Agreed, but how many of us would go through that exercise? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rick.n...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Mike, They are all 8 foot rods and were driven vertically with a fence post driver and then finished off with a sledge. I was 20 years younger at that time, I could not do it today. 3 or 4 rods in a day was all the shoulders could manage. Yes, we hit some small rocks, but they will split is hammered on enough. We did not encounter large rocks when digging the house foundation or the trenches for the ground source heat pump - so it is not too rocky where we are - fist sized at the largest. 73, Don W3FPR On 6/5/2020 4:20 PM, Mike Maloney wrote: Don, Are those all 8 ft ground rods driven vertical in ground without help from a rock drill? Lots of rock in your area? Mike AC5P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
All my ground rods are below ground level. I didn't want to take a chance of failure so used 23 one-shots with #4 solid copper wire. Maybe that is one of the reasons why I get away with never unhooking coax even when I watch lightning strike the tower. One point ground for everything, lightning arrestors on every coax and control line to the house, bonding the shield of all coax to the base of the tower probably helps too. 73, N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Art Greenberg Sent: Friday, June 5, 2020 1:41 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Yeah, maybe I'm one of the exceptions. I just used 20 of them to build a lightning ground system for a new tower install. Easy to use and considerable peace of mind knowing the joints created will last a long time underground. -- Art Greenberg WA2LLN a...@artg.tv On Fri, Jun 5, 2020, at 13:32, Phil Kane wrote: > On 6/5/2020 9:05 AM, Grant Youngman wrote: > > > Cad-weld isn’t expensive — $11-15 per weld depending on where you > > buy the stuff. Typically sold in kits of 6 one-shot crucibles, and > > available for varying ground wire sizes on 1/2” or 5/8” ground rods. > > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to a...@artg.tv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tony@verizon.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
It sure is! This was my first one, so I didn't really know what to expect. I was a bit more casual with the rest, I admit: https://youtu.be/j3MwokpxSco On Fri, Jun 5, 2020 at 10:48 AM Walter Underwood wrote: > > Cad-weld seems a easier than the other approach described. It is more robust > against corrosion, plus it is fun. 73, Byron N6NUL -- - Northern California Contest Club - CU in the Cal QSO Party 3-4 Oct 2020 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Don, Are those all 8 ft ground rods driven vertical in ground without help from a rock drill? Lots of rock in your area? Mike AC5P On Friday, June 5, 2020, 03:10:11 PM CDT, W2xj wrote: To my mind, false economy. Sent from my iPad > On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: > > > That is why I used the mechanical clamps. I have 10 ground rods for a > perimeter ground wire around the house, 6 on the perimeter ground around the > workshop building (where the antenna feedlines first enter) and another 4 in > the antenna field. A total of 20 Cad Welds would have exceeded my budget - > the #4 copper wire was expensive enough! > All the clamps are above ground a bit, so I can check the tightness with a > wrench at least once a year. > In most cases, the perimeter wires are folded back on itself to fit into the > clamp, so the wire is continuous rather than having cut ends. > Yes, even the utility ground rod clamp is exposed. The building inspector > frowned on it until I told him why and he allowed it because I do not (will > not) mow grass near any of the ground rods. > > 73, > Don W3FPR > >> On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: >> Just look at $11.00 per ground rod connection for Cad-Weld as compared to >> $1.98 for a mechanical clamp. Which do you think a ham will choose ? > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w...@w2xj.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to a...@sbcglobal.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
To my mind, false economy. Sent from my iPad > On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: > > > That is why I used the mechanical clamps. I have 10 ground rods for a > perimeter ground wire around the house, 6 on the perimeter ground around the > workshop building (where the antenna feedlines first enter) and another 4 in > the antenna field. A total of 20 Cad Welds would have exceeded my budget - > the #4 copper wire was expensive enough! > All the clamps are above ground a bit, so I can check the tightness with a > wrench at least once a year. > In most cases, the perimeter wires are folded back on itself to fit into the > clamp, so the wire is continuous rather than having cut ends. > Yes, even the utility ground rod clamp is exposed. The building inspector > frowned on it until I told him why and he allowed it because I do not (will > not) mow grass near any of the ground rods. > > 73, > Don W3FPR > >> On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: >> Just look at $11.00 per ground rod connection for Cad-Weld as compared to >> $1.98 for a mechanical clamp. Which do you think a ham will choose ? > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w...@w2xj.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
1 TOWER 6000-20 k 1HOLE WITH CONCRETE $1000 HUNDREDS OF FEET OF LMR 600 , RG213 ETC 4 ANTENNAS $1600 ROTOR 1600 cadwelds for the 9 10 BURIED ground rodsat the tower and few more at the house MUST be in the budget. why stray from a great job for a few hundred bucks. CADWELD. On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: Just look at $11.00 per ground rod connection for Cad-Weld as compared to $1.98 for a mechanical clamp. Which do you think a ham will choose ? ered to n...@arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
That is why I used the mechanical clamps. I have 10 ground rods for a perimeter ground wire around the house, 6 on the perimeter ground around the workshop building (where the antenna feedlines first enter) and another 4 in the antenna field. A total of 20 Cad Welds would have exceeded my budget - the #4 copper wire was expensive enough! All the clamps are above ground a bit, so I can check the tightness with a wrench at least once a year. In most cases, the perimeter wires are folded back on itself to fit into the clamp, so the wire is continuous rather than having cut ends. Yes, even the utility ground rod clamp is exposed. The building inspector frowned on it until I told him why and he allowed it because I do not (will not) mow grass near any of the ground rods. 73, Don W3FPR On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: Just look at $11.00 per ground rod connection for Cad-Weld as compared to $1.98 for a mechanical clamp. Which do you think a ham will choose ? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
WOW!!! That was so-o-o neat!!! -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of donov...@starpower.net Sent: Friday, June 05, 2020 2:14 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL - Original Message - From: "Jim Brown" To: elecraft@mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: > This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
I agree with Jim, K9YC on this. Grounding is for lightning protection. To be effective, it should be outside of the structure/house and be very low resistance. And all driven grounds must be bonded back to the AC Mains ground. This is per NEC. Your equipment, your house, and your life may depend on it being done correctly. Yes, the Cad-Weld fireworks are indeed impressive. And when finished one has a connection that will survive reliably underground for years and years. Where as a mechanical connection is only good for a few years and less if buried. Something about dissimilar metal chemical reaction. 73 Bob, K4TAX On 6/5/2020 1:07 PM, Jim Brown wrote: On 6/5/2020 10:23 AM, Chris Waldrup wrote: This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
In the mid-60's, on the other side of the planet, we ran missions putting a transportable TACAN on the air for as long as the JP-4 for the 400 Hz turbine alternators lasted [~10-15 days]. Then, we piled all the gear on top, several thermite packs on that, and pulled the tapes. It reduced EVERYTHING to molten slag ... sadly including two brand new KWM-2A's each time. [:= 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/5/2020 11:13 AM, donov...@starpower.net wrote: Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Just look at $11.00 per ground rod connection for Cad-Weld as compared to $1.98 for a mechanical clamp. Which do you think a ham will choose ? 73 Bob, K4TAX On 6/5/2020 12:46 PM, Walter Underwood wrote: Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. I just don’t see a downside. :-) wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) On Jun 5, 2020, at 10:32 AM, Phil Kane wrote: On 6/5/2020 9:05 AM, Grant Youngman wrote: Cad-weld isn’t expensive — $11-15 per weld depending on where you buy the stuff. Typically sold in kits of 6 one-shot crucibles, and available for varying ground wire sizes on 1/2” or 5/8” ground rods. Agreed, but how many of us would go through that exercise? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wun...@wunderwood.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Anyone that would desire to have a proper and reliable installation for connecting a conductor to a ground rod. Me for one! To that end, I've visited many ham stations where it seems there is a mish mash of equipment connected in a hap hazard manner. I view this is far from good engineering practice and methods. And then they often wonder why things don't work or don't work reliably. 73 Bob, K4TAX On 6/5/2020 12:32 PM, Phil Kane wrote: On 6/5/2020 9:05 AM, Grant Youngman wrote: Cad-weld isn’t expensive — $11-15 per weld depending on where you buy the stuff. Typically sold in kits of 6 one-shot crucibles, and available for varying ground wire sizes on 1/2” or 5/8” ground rods. Agreed, but how many of us would go through that exercise? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Neat! Jim On 6/5/2020 11:13 AM, donov...@starpower.net wrote: Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Right sir I understand. I just mean I don't have large towers and big antennas. Just want be protected since we are up high. Chris > On Jun 5, 2020, at 1:09 PM, Jim Brown wrote: > > On 6/5/2020 10:23 AM, Chris Waldrup wrote: >> This is probably overkill for QRP but I wanted to do it right like we used >> to do in broadcast. > > The primary purpose of grounding bonding has NOTHING to do with radio -- it's > for LIGHTNNG PROTECTION! > > > On 6/5/2020 10:46 AM, Walter Underwood wrote: > > Cad-weld seems a easier than the other approach described. It is more > > robust against corrosion, plus it is fun. > > Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. > :) > > 73, Jim K9YC > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kd4...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL - Original Message - From: "Jim Brown" To: elecraft@mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: > This is probably overkill for QRP but I wanted to do it right like we used to > do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
On 6/5/2020 10:23 AM, Chris Waldrup wrote: This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
On 6/5/2020 8:17 AM, Phil Kane wrote: For our commercial and public safety communication site grounding systems our firm insists on cad-weld at all exposed and buried connection points but I would suspect that very few hams, let alone residential or even commercial electricians, would go to that length. It was years before I went from mechanical clamps to cadwelds. No question that it's the way to go. Some are packaged much better than others. I prefer the ones where the two powders are packaged separately. NK7Z sells them. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. I just don’t see a downside. :-) wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 5, 2020, at 10:32 AM, Phil Kane wrote: > > On 6/5/2020 9:05 AM, Grant Youngman wrote: > >> Cad-weld isn’t expensive — $11-15 per weld depending on where you buy >> the stuff. Typically sold in kits of 6 one-shot crucibles, and >> available for varying ground wire sizes on 1/2” or 5/8” ground rods. > > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wun...@wunderwood.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Yeah, maybe I'm one of the exceptions. I just used 20 of them to build a lightning ground system for a new tower install. Easy to use and considerable peace of mind knowing the joints created will last a long time underground. -- Art Greenberg WA2LLN a...@artg.tv On Fri, Jun 5, 2020, at 13:32, Phil Kane wrote: > On 6/5/2020 9:05 AM, Grant Youngman wrote: > > > Cad-weld isn’t expensive — $11-15 per weld depending on where you buy > > the stuff. Typically sold in kits of 6 one-shot crucibles, and > > available for varying ground wire sizes on 1/2” or 5/8” ground rods. > > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to a...@artg.tv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
On 6/5/2020 9:05 AM, Grant Youngman wrote: > Cad-weld isn’t expensive — $11-15 per weld depending on where you buy > the stuff. Typically sold in kits of 6 one-shot crucibles, and > available for varying ground wire sizes on 1/2” or 5/8” ground rods. Agreed, but how many of us would go through that exercise? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
I meant to add I couldn't get the shots to fire with the sparking tool I purchased so I ran down to a fireworks store and purchased a box of sparklers. They do a ***fantastic*** job at ignition. Then when you're done after things cool a few gentle taps with a hammer breaks off the thin ceramic form and you're good to go. Chris KD4PBJ > On Jun 5, 2020, at 12:23 PM, Chris Waldrup wrote: > > Hi Phil, > > I use Erico One Shot cad welds on my workshop grounding system. Everything is > tied together with cad welded bare 6 AWG and I have 8 foot ground rods, > although I had to drive them in at an angle. Our house is on top of a > mountain in TN and soil depth varies from probably 6 ft deep to exposed rock > in certain parts of the property. This is probably overkill for QRP but I > wanted to do it right like we used to do in broadcast. > > Chris > KD4PBJ > >>> On Jun 5, 2020, at 10:19 AM, Phil Kane wrote: >>> >>> On 6/4/2020 8:50 PM, Ed Tanton wrote: >>> >>> I should have mentioned that. I strip 5 or 6 inches of insulation. That >>> was why I cleaned the top of the ground rod and sprayed it with >>> electrical lubricant. I used a stainless steel hose clamp to hold the >>> stripped wires against the ground rod at each end of the stripped wire >>> portions. The next part is what I wrote about to start with. >> >> Thank you for explaining that. For our commercial and public safety >> communication site grounding systems our firm insists on cad-weld at all >> exposed and buried connection points but I would suspect that very few >> hams, let alone residential or even commercial electricians, would go to >> that length. My mentor in that area, the late Tom Croda, who during his >> lifetime was the national expert in comm site power and grounding, would >> not settle for anything less. >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kd4...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Hi Phil, I use Erico One Shot cad welds on my workshop grounding system. Everything is tied together with cad welded bare 6 AWG and I have 8 foot ground rods, although I had to drive them in at an angle. Our house is on top of a mountain in TN and soil depth varies from probably 6 ft deep to exposed rock in certain parts of the property. This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. Chris KD4PBJ > On Jun 5, 2020, at 10:19 AM, Phil Kane wrote: > > On 6/4/2020 8:50 PM, Ed Tanton wrote: > >> I should have mentioned that. I strip 5 or 6 inches of insulation. That >> was why I cleaned the top of the ground rod and sprayed it with >> electrical lubricant. I used a stainless steel hose clamp to hold the >> stripped wires against the ground rod at each end of the stripped wire >> portions. The next part is what I wrote about to start with. > > Thank you for explaining that. For our commercial and public safety > communication site grounding systems our firm insists on cad-weld at all > exposed and buried connection points but I would suspect that very few > hams, let alone residential or even commercial electricians, would go to > that length. My mentor in that area, the late Tom Croda, who during his > lifetime was the national expert in comm site power and grounding, would > not settle for anything less. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kd4...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
My whole ground system is Cadweld bonded. I bought the new style shots and purchased the igniter from Joel and the RF Connection in MD. Couldn't have been happier. And they're fun to fire off, too! - pjd -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Grant Youngman Sent: Friday, June 5, 2020 12:05 PM To: k2...@arrl.net Cc: Elecraft Refl Subject: Re: [Elecraft] Self-fusing liquid electrical tape Cad-weld isn’t expensive — $11-15 per weld depending on where you buy the stuff. Typically sold in kits of 6 one-shot crucibles, and available for varying ground wire sizes on 1/2” or 5/8” ground rods. Grant NQ5T > On Jun 5, 2020, at 11:17 AM, Phil Kane wrote: > > On 6/4/2020 8:50 PM, Ed Tanton wrote: > >> I should have mentioned that. I strip 5 or 6 inches of insulation. >> That was why I cleaned the top of the ground rod and sprayed it with >> electrical lubricant. I used a stainless steel hose clamp to hold the >> stripped wires against the ground rod at each end of the stripped >> wire portions. The next part is what I wrote about to start with. > > Thank you for explaining that. For our commercial and public safety > communication site grounding systems our firm insists on cad-weld at > all exposed and buried connection points but I would suspect that very > few hams, let alone residential or even commercial electricians, would > go to that length. My mentor in that area, the late Tom Croda, who > during his lifetime was the national expert in comm site power and > grounding, would not settle for anything less. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@w2irt.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
Cad-weld isn’t expensive — $11-15 per weld depending on where you buy the stuff. Typically sold in kits of 6 one-shot crucibles, and available for varying ground wire sizes on 1/2” or 5/8” ground rods. Grant NQ5T > On Jun 5, 2020, at 11:17 AM, Phil Kane wrote: > > On 6/4/2020 8:50 PM, Ed Tanton wrote: > >> I should have mentioned that. I strip 5 or 6 inches of insulation. That >> was why I cleaned the top of the ground rod and sprayed it with >> electrical lubricant. I used a stainless steel hose clamp to hold the >> stripped wires against the ground rod at each end of the stripped wire >> portions. The next part is what I wrote about to start with. > > Thank you for explaining that. For our commercial and public safety > communication site grounding systems our firm insists on cad-weld at all > exposed and buried connection points but I would suspect that very few > hams, let alone residential or even commercial electricians, would go to > that length. My mentor in that area, the late Tom Croda, who during his > lifetime was the national expert in comm site power and grounding, would > not settle for anything less. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
On 6/4/2020 8:50 PM, Ed Tanton wrote: > I should have mentioned that. I strip 5 or 6 inches of insulation. That > was why I cleaned the top of the ground rod and sprayed it with > electrical lubricant. I used a stainless steel hose clamp to hold the > stripped wires against the ground rod at each end of the stripped wire > portions. The next part is what I wrote about to start with. Thank you for explaining that. For our commercial and public safety communication site grounding systems our firm insists on cad-weld at all exposed and buried connection points but I would suspect that very few hams, let alone residential or even commercial electricians, would go to that length. My mentor in that area, the late Tom Croda, who during his lifetime was the national expert in comm site power and grounding, would not settle for anything less. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
I should have mentioned that. I strip 5 or 6 inches of insulation. That was why I cleaned the top of the ground rod and sprayed it with electrical lubricant. I used a stainless steel hose clamp to hold the stripped wires against the ground rod at each end of the stripped wire portions. The next part is what I wrote about to start with. Ed Tanton Marietta, GA On 6/3/2020 10:31 PM, Ed Tanton wrote: I mention all this as a response to the question about the use of liquid tape. I did all this working on the ground rods and radials connected under my HyGain HyTower. What do you use to attach the ground wire(s) to the ground rod? Buckeyes? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Self-fusing liquid electrical tape
On 6/3/2020 10:31 PM, Ed Tanton wrote: > I mention all this as a response to the question about the use of liquid > tape. > I did all this working on the ground rods and radials connected under my > HyGain HyTower. What do you use to attach the ground wire(s) to the ground rod? Buckeyes? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
