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Bill Hider, N3RR

Grounding. Bill Hider, N3RR. Grounding = Controlling Lightning!. For Protection!. Personnel Equipment House/Facility. Specifically, Protect What @ N3RR?. Personnel in the shack The Ham Shack/house Electronic equipment in the shack (TX, RX, AMPS, PCs, and the like)

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Bill Hider, N3RR

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  1. Grounding Bill Hider, N3RR

  2. Grounding = Controlling Lightning!

  3. For Protection! Personnel Equipment House/Facility

  4. Specifically, Protect What @ N3RR? Personnel in the shack The Ham Shack/house Electronic equipment in the shack (TX, RX, AMPS, PCs, and the like) Electronic and Electrical equipment elsewhere in the house Rotors and their controllers Antennas Tower-mounted relay switchers Tower

  5. Specifications/Standards ANSI/TIA/EIA-222-E Available From: http://global.ihs.com/

  6. Technical Information/Documentation http://www.lightningEliminators.com/ www.polyphaser.com Many others. Search for “Lightning”

  7. Outdoors: The Ground Grid

  8. Controlling Lightning (Tower)

  9. Controlling Lightning (Tower & Shack)

  10. KEY = Common Tie-point = 8 Ft ground Rod w/clamp = 8 Ft ground Rod w/Cadweld = Elevated guy anchor = 125 feet 1.5 Inch copper strap = # 4 wire = TELCO and AC power entry 125 feet 134 Ft Tower 52 Ft Tower 125 feet Tel&AC Not to Scale SPG Box Ham Shack House

  11. N3RR – Grounding @ Tower Reference site: www.erols.com/n3rr Lightning protectors: http://www.polyphaser.com/ Steel Hoffman Boxes http://www.hoffmanonline.com/: Andrew Ground Kits http://www.andrew.com: PolyPhaser Lightning Protectors:

  12. N3RR – Grounding @ Tower Tower leg w/ground wires shown

  13. N3RR – Grounding @ Tower • Not shown (on the tower): • MOVs at each Ring Rotor – from each control wire to ground • MOVs at the 80 Meter antenna relay box– from each control wire to ground • Andrew Ground Kit from each coax to ground as close to each antenna as possible

  14. N3RR – Grounding @ Guy Anchors Guy anchor ground wires

  15. N3RR – Grounding – SPG @ House

  16. KEY = Common Tie-point = 8 Ft ground Rod w/clamp = 8 Ft ground Rod w/Cadweld Review = Elevated guy anchor = 125 feet 1.5 Inch copper strap = # 4 wire = TELCO and AC power entry 125 feet 134 Ft Tower 52 Ft Tower 125 feet Tel&AC Not to Scale SPG Box Ham Shack House

  17. N3RR – Grounding – SPG @ House Other Connections Beverage coax entry & left side copper ground strap: Copper strap grounding to 8 ft copper ground rod:

  18. N3RR – Grounding – SPG @ House Other Connections Other end of copper ground strap (after 3 ground rods):

  19. Indoors: The SPG Grid

  20. SPG Box (External) • SPG Wall Panel • All equipment grounds • “home-run” to this SPG panel. • All coax passes through this panel with “double-barrel” feed-through connectors. TELCO & Electric Ham Shack House

  21. N3RR – Grounding –Inside Electrical box to ground strap connection:

  22. N3RR – Grounding –Inside SPG panel inside:

  23. N3RR – Grounding – Results Since November 1994, one IC-781, IC-4KL, 5 Ring Rotors, One Hy-Gain rotor, 4 Packet Cluster Radios, 2 PCs, with all antennas hooked up. Only one failure due to elecrical shock: I left the ground wire off of a Ring Rotor controller durning a period of 1 week for maintenance and a nearby lightning strike burned out an internal Zener diode. NO OTHER FAILURES IN OVER 10 Years CONTINUOUSLY CONNECTED!

  24. N3RR – Grounding – THE END!

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