>From what the great video says, if you are comfortable working with 120V the >simplest way to check out a ground rod is to see how much current it will draw >and do the math. Don't attempt this without experience working with a live >circuit. I have been told by licensed electricians that when a new service is >turned up if there is the stub of a ground rod sticking out of the ground it >is good. No testing required.
The thing I don't know is where to get the ground rod to ground rod connections and the ground rods with the blunt ends so they can match the previously driven rod. Lowes only carries the 8 or it 10-foot rods and the coupling to the flex wire to the service box. I checked Amazon and found nothing. I am told the local rental yard will rent a hammer drill and the ground rod driving adapter. Another comment regarding the ability of a ground to carry a lightning strike. All bends of the ground wire should have the gentlest bends possible. A strike of lightning is a very fast rise time having many harmonics. We know this because we can hear lightning almost to the VHF bands, A bend will look like an inductor and raise the instant ohmic value of a ground rod. On the other hand, a few turns on a coax or power source lead will increase the ohms to you rig.it will not protect against a direct hit but might fend off some induced current from a nearby strike. In south Florida it is common to tie several knots in your modem phone line. In Michigan they wrap a phone line around a ¼” bolt , some washers and a nut.. John [email protected] K5VGM WI2XLJIn a message dated 5/23/2022 7:54:42 PM Central Standard Time, [email protected] writes: If any one is interested in ground rod resistance, you can watch the link below. One thing I want watchers to note, they have 2 50ft ground rods connected together, they hook the hot side of a 120v ckt to them and it only pulls 13 amps (not enough to trip a breaker), that is why the grounding system must have a bond back to the power co ground always. Note this is not related to the RF grounds used as a counterpoise to an antenna system other than they will be tied together at a point. Robert https://www.youtube.com/watch?v=Yg6G5VUSsWA ________________________________________________ Brazos Valley Amateur Radio Club BVARC mailing list [email protected] http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Publicly available archives are available here: https://www.mail-archive.com/[email protected]/
________________________________________________ Brazos Valley Amateur Radio Club BVARC mailing list [email protected] http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Publicly available archives are available here: https://www.mail-archive.com/[email protected]/
