Thanks Robert! > On 05/23/2022 6:14 PM Robert Polinski via BVARC <bvarc@bvarc.org> wrote: > > > > JP yes you can, Just use a #6 ga or larger wire between them. Use a > separate clamp on the house ground and clean or wire brush the house rod > where you attach the clamp. Robert > > > From: BVARC <bvarc-boun...@bvarc.org> On Behalf Of JP Pritchard via BVARC > Sent: Monday, May 23, 2022 5:53 PM > To: BRAZOS VALLEY AMATEUR RADIO CLUB <bvarc@bvarc.org> > Cc: JP Pritchard <jppn...@comcast.net> > Subject: Re: [BVARC] Ground rod > > > Robert, my shack ground rod is about 15 feet away from the house ground > rod. Can I just run a heavy wire between the two as a good fix? > > > > JP, K5JPP > > > > > > On 05/23/2022 5:44 PM Robert Polinski via BVARC <bvarc@bvarc.org > > mailto:bvarc@bvarc.org > wrote: > > > > > > > > My post only relates to if in fact you install a ground rod at your > > ham station, that it needs and under the NEC is required to be bonded > > (connected) to your house ground. Lets assume your house ground rod has a > > résistance of 22 ohms. You pound a rod at your shack in the earth that has > > a resistance 10 ohms Lightning strikes your power line behind your > > house. This high voltage pulse is seeking the least resistance path to > > earth. The house ground not the best, but to the lightning Gods you shack > > ground looks like a great path, using the 3rd prong of your power supply or > > the neutral side of the power cord, it seeks that ground, kind of frying > > any wiring or equipment in its travels. If both ground rods are bonded > > together, using ohms law, the total resistance is 6.88 ohms, much better > > ground, lightning has a low resistance path to earth not thru your gear. > > Also from a safety aspect (why the NEC requires bonding) if you loose a > > neutral connection at your power drop to your meter, or in your breaker box > > and your house ground is missing or poor, any grounded equipment in your > > house can have up to 120v on its chassis. If you were touching equipment in > > your shack the was connected to your shack ground and something grounded to > > your poor or non-existent house ground. You will be a cooking hot dog. > > Robert > > > > > > From: BVARC <bvarc-boun...@bvarc.org mailto:bvarc-boun...@bvarc.org > > > On Behalf Of David Hold via BVARC > > Sent: Monday, May 23, 2022 4:58 PM > > To: BRAZOS VALLEY AMATEUR RADIO CLUB <bvarc@bvarc.org > > mailto:bvarc@bvarc.org > > > Cc: David Hold <davidh...@gmail.com mailto:davidh...@gmail.com > > > Subject: Re: [BVARC] Ground rod > > > > > > I will bet …. If you ohm out the negative post and chassis you will > > find out they are the same. > > > > If so just take negative to ground rod or wire under a chassis > > screw to ground. > > > > > > On Mon, May 23, 2022 at 4:51 PM Mike Knedr via BVARC > > <bvarc@bvarc.org mailto:bvarc@bvarc.org > wrote: > > > > > > > > > > Thank you for the information. > > > > > > I have a semlex sec-1235m power supply. > > > > > > It doesn't seem to have a chassis ground like the radio and > > > the tuner does. Does it need to be grounded? > > > > > > > > > On Mon, May 23, 2022, 1:53 PM Robert Polinski via BVARC > > > <bvarc@bvarc.org mailto:bvarc@bvarc.org > wrote: > > > > > > > > > > > > > > Do not preform any electrical work unless you are > > > > comfortable as to what you are doing. Do not in any case ground the 3rd > > > > prong of an electrical cord to a ground rod that is not bonded to your > > > > electrical service. You could cause an electrical potential difference > > > > between ground thru your equipment or thru YOU. Remember, an earth > > > > ground has resistance. An electrical fault (short to chassis or ground) > > > > needs a low resistance path back to its source, a metal conductor, the > > > > earth can be a high resistance path. Low resistance will cause the > > > > protective device ( Breaker or fuse) to open. Robert KD5YVQ > > > > > > > > > > > > From: BVARC <bvarc-boun...@bvarc.org > > > > mailto:bvarc-boun...@bvarc.org > On Behalf Of Joseph Benoit via BVARC > > > > Sent: Sunday, May 22, 2022 8:59 AM > > > > To: BRAZOS VALLEY AMATEUR RADIO CLUB <bvarc@bvarc.org > > > > mailto:bvarc@bvarc.org > > > > > Cc: Joseph Benoit <wa3...@gmail.com > > > > mailto:wa3...@gmail.com > > > > > Subject: Re: [BVARC] Ground rod > > > > > > > > > > > > Mike. Not a direct answer to your ground rod issue BUT > > > > upon inspection, you will find the wire feeding the outlet boxes > > > > probably does contain a ground wire, just that they didn't have > > > > three-prong outlets or continue grounds properly > > > > > > > > Not sure you want to tackle this BUT it is easy just > > > > time-consuming. After you've done a couple, maybe 15 minutes each. > > > > > > > > Experiment with one outlet to see if you are up to it. > > > > > > > > Look in your breaker panel and you will see a bunch of > > > > ground wires connected to the ground buss so obviously they go > > > > SOMEWHERE (just not terminated at the outlets and switches). > > > > > > > > Time to replace those old outlets and switches anyway. > > > > Don't buy the cheapest outlets, stick to made in USA; Proven to be > > > > better connections inside. > > > > > > > > You can fix the issue with the no-grounded outlets > > > > throughout the house and make things much safer. Buy an outlet tester > > > > (a few bucks; three LED's) if you don't have one. Get about 10 feet > > > > (jic) #14 solid copper wire green or whatever color.; stripping > > > > entirely bare if not green. Have a small assortment of appropriate wire > > > > nuts and electrical tape. Amazing how many three pronged outlets don't > > > > have any wire to ground screw although the bare ground wire is in there > > > > (sometimes just balled-up. Good time to identify what breaker does > > > > what and to make sure that breaker is OFF before you remove the outlet > > > > or light switch.. By getting to each and every outlet and switch and > > > > make sure the ground wires that are there are all connected to each > > > > other (may be multiple cables in same box) connect them all together > > > > adding a pig tail if it was cut too short. Add a short pigtail to the > > > > new 3-prong grounded receptacle. Also look at any junction boxes hiding > > > > in the attic. Have to be patient since, in an older house like ours, > > > > one room may feed another room and the problem won't resolve until all > > > > the grounds are tied together. One day project does the whole house. > > > > > > > > Good idea to take a wrap of tape around the receptacle > > > > or switch for safety (for safety and to keep that ground wire from > > > > touching where it shouldn't. > > > > > > > > > > > > On Fri, May 20, 2022 at 8:19 PM Mike Knedr via BVARC > > > > <bvarc@bvarc.org mailto:bvarc@bvarc.org > wrote: > > > > > > > > > > > > > > > > > > The house was built in the 60's. > > > > > > > > > > So there is no ground to the receptacles. > > > > > > > > > > I was planning on building an extension cord with > > > > > a gfci and running the ground to the rod. > > > > > > > > > > I was thinking about flat braid from a ground > > > > > buss bar to the rod for the radio, tuner, and power supply. > > > > > > > > > > > > > > > Any thoughts? > > > > > > > > > > > > > > > Mike KI5UBL 73 > > > > > > > > > > > > > > > On Fri, May 20, 2022, 7:57 PM Michael Giannaccio > > > > > via BVARC <bvarc@bvarc.org mailto:bvarc@bvarc.org > wrote: > > > > > > > > > > > > > > > > > > > > > > Hi Mike, > > > > > > > > > > > > When I put mine in I left about 8-12” out > > > > > > of the ground. Plenty of room for multiple clamps and coax > > > > > > grounding blocks. > > > > > > > > > > > > If you’re not already aware make sure you > > > > > > bond your station ground with your home’s electrical ground. I have > > > > > > some wire that you’re welcome to for bonding if your run isn’t too > > > > > > long. Let me know! > > > > > > > > > > > > 73, > > > > > > > > > > > > Mike Giannaccio > > > > > > W5REZ > > > > > > > > > > > > > On May 20, 2022, at 6:53 PM, Mike Knedr > > > > > > via BVARC <bvarc@bvarc.org mailto:bvarc@bvarc.org > wrote: > > > > > > > > > > > > > > > > > > > > > I'm am installing an eight foot ground > > > > > > rod for my new shack. > > > > > > > My question is how much leave above > > > > > > ground to attach the grounds. > > > > > > > > > > > > > ________________________________________________ > > > > > > > Brazos Valley Amateur Radio Club > > > > > > > > > > > > > > BVARC mailing list > > > > > > > BVARC@bvarc.org mailto:BVARC@bvarc.org > > > > > > > > > > > > > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > > > > > > > Publicly available archives are available > > > > > > here: https://www.mail-archive.com/bvarc@bvarc.org/ > > > > > > > > > > > > > > > > > > > > > > > > ________________________________________________ > > > > > > Brazos Valley Amateur Radio Club > > > > > > > > > > > > BVARC mailing list > > > > > > BVARC@bvarc.org mailto:BVARC@bvarc.org > > > > > > > > > > > > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > > > > > > Publicly available archives are available > > > > > > here: https://www.mail-archive.com/bvarc@bvarc.org/ > > > > > > > > > > > > > > > > > > > > > > ________________________________________________ > > > > > Brazos Valley Amateur Radio Club > > > > > > > > > > BVARC mailing list > > > > > BVARC@bvarc.org mailto:BVARC@bvarc.org > > > > > > > > > > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > > > > > Publicly available archives are available here: > > > > > https://www.mail-archive.com/bvarc@bvarc.org/ > > > > > > > > > > > > > > > > > > ________________________________________________ > > > > Brazos Valley Amateur Radio Club > > > > > > > > BVARC mailing list > > > > BVARC@bvarc.org mailto:BVARC@bvarc.org > > > > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > > > > Publicly available archives are available here: > > > > https://www.mail-archive.com/bvarc@bvarc.org/ > > > > > > > > > > > > > > ________________________________________________ > > > Brazos Valley Amateur Radio Club > > > > > > BVARC mailing list > > > BVARC@bvarc.org mailto:BVARC@bvarc.org > > > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > > > Publicly available archives are available here: > > > https://www.mail-archive.com/bvarc@bvarc.org/ > > > > > > > > > > -- > > > > David Hold david.h...@gmail.com mailto:david.h...@gmail.com > > > > ________________________________________________ > > Brazos Valley Amateur Radio Club > > > > BVARC mailing list > > BVARC@bvarc.org mailto:BVARC@bvarc.org > > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > > Publicly available archives are available here: > > https://www.mail-archive.com/bvarc@bvarc.org/ > > > > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > BVARC@bvarc.org > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/bvarc@bvarc.org/ >
________________________________________________ Brazos Valley Amateur Radio Club
BVARC mailing list BVARC@bvarc.org http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Publicly available archives are available here: https://www.mail-archive.com/bvarc@bvarc.org/
