Counterpoise System and Grounding for Airfield All of this is done for lightning protection At the manhole structure, the counterpoise and manhole (including all metallic parts and ground bus) is bonded to three ground rods installed around the perimeter of the structure This type of grounding is performed to airfield lighting, power (all voltages) and communication systems
JPC-12 | Page 2 | QRZ Forums Switching to JPC -12 by buying additional parts The wire included with the JPC-12 (or PAC-12, same thing) is a four conductor wire that is used inside gear to connect circuit boards and so on You are supposed to strip it down to make four separate wires to use as counterpoise, which is fine but they are extraordinary fine gauge You don't need to buy this -- you could make a far better
Ground Wires and MV Ductbanks - Mike Holts Forum I have received a question from the field regarding a specification requirement they want me to delete It was part of the boilerplate spec, meaning that I did not write it, and I did not elect to edit it out The requirement is to run a 4 0 bare copper grounding conductor above (or below, at
How to Calculate Multiple Banded End Fed Half Wave (EFHW) A counterpoise wire extends the effective length of an end-fed antenna to do this Remember that an "End-Fed" wire antenna is in reality a "nearly end fed" or "very off-center fed" antenna (usually the equivalent of a dipole at its resonant frequency) and its end impedance is not infinite, as truely "end-fed" would imply
How to cut and tune EFHW antenna for 10 - 40 - QRZ Forums What is the efficiency of this antenna system? Where is the counterpoise? It would be nice to see an A B comparison to a center-fed doublet fed through an antenna tuner so we could compare the relative performance of each antenna Ah yes- The nearly century old controversy about the EFHW and counterpoise rises again
Counterpoise vs triode | Information by Electrical Professionals for . . . Re: Counterpoise vs triode I found some of my old papers A triode for building ground is three rods over ten feet apart, bonded together, and installed at each building corner A counterpoise ground is a ground ring, with multiple rods The applied math indicates the triode is of lower impedance, but that is dependant on soil conditions
Ground Loop or Couterpoise Required for Pad Mounted Tran My colleague suggested that I need a ground loop or counterpoise installed for my pad mounted 3phase, 300KVA, Delta-Wye connected, 208 120 volts, 12,460 volts primary transformer