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Re: [TowerTalk] Exothermic welding mold

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Exothermic welding mold
From: "Martin A. Flynn" <maflynn@theflynn.org>
Date: Sun, 20 Aug 2023 11:35:18 -0400
List-post: <mailto:towertalk@contesting.com>
Reply from NVENT:   I suggest using the GRC182G or the GYR182G molds as alternate.   Implies being unable to do this in a single weld.

Local substation electrician suggested https://shopalltec.com/gey-mold/ ; He is going to loan me the clamp to hold the ring cable while welding (once the exothermic reaction starts, it often cuts the cable before the weld solidifies)

Ring cable is the lower pair, the cable to the tower is the upper.

73 Martin Flynn

On 8/13/2023 1:00 PM, Martin A. Flynn wrote:

Thanks - Cables are 2/0 and the rods are 3/4 inch

Have about 12 connections to make, might even be worth it as a custom mold to avoid putting 90 degree bends in the tower to ring cables.

Have email out to Harger and Thermoweld

73 Martin Flynn

On 8/13/2023 12:49 PM, Dave (NK7Z) wrote:
https://www.kf7p.com/KF7P/HargerUniShot.html

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 8/13/23 07:42, Martin A. Flynn wrote:
Looking for a mold that can be used to connect three (3) 2/0 concentric copper cables to a 3/4 Inch copper clad rod.

Does this exist?

73 Martin Flynn


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