Ground Testing Essentials
Aug 1, 1998, By Jeff Jowett, AVO International
Proper grounding is essential to maintaining good power quality. Do you know the essential steps of doing a ground test?...
CNC Machine Tool Grounding: Pleading Your Case
Jun 1, 1998, By Ken Michaels, F.D Hayes Electric Co.
Alert the OEM of possible shock hazards, lightning damage, ground loop currents, and electrolysis in your facility. If you find its "required" ground rod causes such problems, ask the OEM to accept liability in writing....
How Far Do Electrodes Extend?
Mar 1, 1998, Frederic P. Hartwell
Do grounding electrodes end at the building wall, or do they continue on into the building? How does that affect the application of other Code rules?Code...
Eleven practical tips for grounding substations.
Oct 1, 1996, Switzer, W. Keith
A properly designed and installed grounding system ensures reliable performance of electrical substations.Just how important is substation reliability?...
Grounding separately derived systems to water pipes
Sep 1, 1996, Hartwell, Frederic P.
The new paragraph in Sec. 250-80(a) creates questions about the relationship between water piping and separately derived system grounding.One of the most...
Quality grounding and power
Feb 1, 1996, Lewis, Warren H.; Hartwell, Frederic P.
A step-by-step look at a highly effective grounding design for an information technology area that also fully complies with the NEC.The Computer and Business...
Solving instrumentation ground loop problems
Feb 1, 1996,
Unwanted ground loops can cause inaccurate sensor readings by negatively affecting instrumentation signals.Today's modern process plants are highly dependent...
An overview of IEEE 1100: The Emerald Book.
Feb 1, 1996, Gruzs, Thomas M.
This standard seeks to bring order to the apparent chaos of power quality assurance by describing recommended practices for powering and grounding sensitive...
Grounding remote pump stations.
Aug 1, 1995, Hartwell, Frederic P.
Efforts to ensure continuity of power must not create potential hazards through improper grounding techniques.Remote pumping stations, each with their...
Grounding non-separately derived generator systems.
May 1, 1995, Hartwell, Frederic P.
These answers are given by our panel of experts. I am chairing this panel, and the other panel members include Bill Summers, James Stallcup, and Dan Leaf....
Signal reference grids: myths, facts, and sensible choices
Apr 1, 1995, Singer, Richard E.
Your choice of SRG depends on knowing what's legitimately true and patently false about grounding, bonding, and electrical noise mitigation.Proper bonding...
Choosing grounding options for electrical power systems.
Feb 1, 1995, Bridger, Baldwin, Jr.
Your choice of either solid, low-, or high-resistance grounding is based on the power system application and degree of power interruption tolerated.Solid,...
