The Electric Utility Industry spends a lot of money bypassing steel reinforced concrete tower legs with copper conductor to a ground system for lightening protection.
73, Rick K7MW > On Apr 18, 2017, at 7:16 AM, JOE <[email protected]> wrote: > > Well, in my cellular experience of watching many tower and monopole > installations, tower grounds going thru concrete was generally not allowed. > Several reasons that I have been told are moisture in the concrete can turn > to steam during a direct lightning hit, damaging the concrete base material. > Ground conductors can be damaged by chemical reaction from contact with the > concrete and moisture. Lastly, you cannot do routine inspections on ground > conductors that pass thru the tower base. > > Tower grounding specifications are detailed in Motorola R56 Standards and > Guidelines Manual. This shows the ground conductors outside the concrete > tower base. > > Joe > > On 4/18/2017 8:05 AM, [email protected] wrote: >> Message: 3 >> Date: Mon, 17 Apr 2017 21:32:02 -0600 >> From: "Doug Renwick"<[email protected]> >> To: "'Elecraft Reflector'"<[email protected]> >> Subject: Re: [Elecraft] OT: Ground rods and concrete >> Message-ID: <191B5755E4654B65951378A9EF28A8F1@DOUG8PC> >> Content-Type: text/plain; charset="us-ascii" >> >> That myth refuses to die. I have 5 concrete tower bases with ground rods >> partially encased and never a worry about an exploding base. >> >> Doug > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
