here R and L--the resistance and inductance of the connecting lines and the grounding
electrodes respectively; [DELTA]i/[DELTA]t--the rate of current alteration in the contour, which is implemented using the frame and conductors which connect it to the ground.
resistance calculation problem can be reduced to solving the integral equation:
Once the problem of grounding
at high frequencies is recognized, diligent facility and equipment engineers would be concerned with the methodology of measuring ground quality at high frequencies and the ways to improve it.
Facility managers who have stayed on top of important technology developments to keep up production over the years won't want to let aging grounding
or inadequate ground testing blindside them anymore.
system is an interconnected network of wires and/or metal that's designed to siphon off electrical leaks from hot and neutral wires that have accidentally broken loose, worn through their insulation, or were connected wrong.
Mark Earley with the National Fire Protection Association (NFPA) in Quincy, Mass., notes that some plumbers have already begun responding to homeowners' concerns about ground currents by recommending the removal of grounding
connections from water pipes.
What's more, it maintains that low resistivity for the life of the grounding
Appliances and other devices that now have grounding
cords and plugs include automatic dishwashers, gas ranges, clothes dryers, electric refrigerators, microwave ovens, gas ranges, dehumidifiers, power tools(*), and electric yard care tools(*).
problems are found between data communications equipment (DCE) such as multiplexers or a rack of modems, and data terminal equipment (DTE).
All that work placing the grounding
rods will be for nothing if the contact surfaces for the grounding
wires are corroded, painted or dirty.
In any environment, just sticking the grounding
rod under a landing leg or driving it a few inches in the ground won't cut it.
IT IS A GOOD IDEA IF THE GROUNDING
ROD REACHES THE WATER TABLE,