ground rod การใช้

• The wellhead and the ground rod form the two electrodes of a dipole antenna.
• Grounding, union of ground rods to metallic structures, meshes, substations, power installations and lightning arresters.
• Is it connected to a huge ground rod?
• Electric utility installations use a great number of ground rods spread around the facility and bonded together.
• In my part of the U . S . in normal soil conditions ground rods are generally used.
• The resistance of a ground rod depends on the soil conditions and the depth to which it is driven.
• NASA believes two electrical ground rods, called plasma contactor units, mounted on the station should take care of any problem with dangerous discharges.
• Adequate grounding requires at least two ground rods at opposite corners of the building driven no less than 10 feet into the ground.
• I found that there might also be a slight stray voltage, both AC and DC, between the ground rods, as a complication to the thought experiment.
• Usually this metal mat ( or ground mesh ) is connected to buried ground rods to increase contact with the earth and effectively reduce grid impedance.
• The ground wires in my home electrical system are connected literaly to the earth via a ground rod which runs a certain number of feet into the ground.
• Water helps move electrons to the ground rod and keep a good supply of them ready for usage .-- ( talk ) 19 : 53, 5 May 2006 ( UTC)
• A substation in addition to a system of ground rods, may have a network of cables below the gravel to limit step and touch potentials in the event of a fault.
• The lightning charge passes to wire conductors alongside the house ( either inside or outside the walls ), which are connected to ground rods driven into the earth about 2 feet from the house.
• In the multiple earth neutral system Keit described in response to an earlier question, how many of these household ground rods with " several hundreds of ohms " resistance each are typically combined in parallel?
• :Some personal experience / original research : When installing ground rods at transformers it was straightforward in my locale to achieve a ground impedance of under 10 ohms via a 10 to 30 foot driven ground.
• Are metal cold water pipes not also used as grounds ( granted some places use nonmetallic pipe, and the US lately seems to require a driven ground rod in addition to and water pipe ground ) )?
• Etc . This could of course increase the rate of corrosion of metal objects in the ground near one of the ground rods, and it might heat up the ground rods unless they consisted of several in parallel.
• Etc . This could of course increase the rate of corrosion of metal objects in the ground near one of the ground rods, and it might heat up the ground rods unless they consisted of several in parallel.
• Do not try this in real life without a utility locate process to make sure there are no buried lines or pipes where you drive ground rods . talk ) 03 : 41, 27 October 2015 ( UTC)