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GET /hyperkitty/api/list/[email protected]/email/O3PX37LKAIA5QRAKMTBQDEDYVFPKRWHB/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/O3PX37LKAIA5QRAKMTBQDEDYVFPKRWHB/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "O3PX37LKAIA5QRAKMTBQDEDYVFPKRWHB", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/O3PX37LKAIA5QRAKMTBQDEDYVFPKRWHB/", "sender": { "address": "k5oe (a) aol.com", "mailman_id": "aee3209b1433498d8db2ef6ec0d414c3", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/aee3209b1433498d8db2ef6ec0d414c3/emails/" }, "sender_name": "K5OE", "subject": "[amsat-bb] Re: Lightning protection", "date": "2013-10-17T06:44:36Z", "parent": null, "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "\nK9STH wrote:\n> Sorry, but NFPA NEC (National Electrical Code) definitely requires that ALL \n> grounding electrodes MUST be connected together! There are VERY good reasons \n> for doing this...\n\nYeah, this is a requirement that has vexed designers of complex electrical systems for years.\nOne solution, generally meeting this requirement, is to go ahead an utilize separate ground rods\nand tie the rods together with a (large) grounding cable--usually pvc insulated cable for corrosion \nprotection. In industrial installations these connections are often made so they can be \ndisconnected in the event of differential currents flowing and causing problems with \ncommunication/signal systems.\n\nMuch like K8BL's recommendations, I too have used #10 AWG for the ground from the rotor/mast\n to the ground rod, and hoped and prayed the lightning liked it (if ever needed). This is especially important\nfor a non-earthed installation like a tripod on a roof. I have been fortunate to never having to find out...\n\n73,\nJerry, M0GOE\n", "attachments": [] }