Think anything like grounding as foundation of house that would hold all the electrical system. Without that, whole thing would come tumbling down. The ground testing could fall in two categories and that is one that ensure the installation shall meet the ground specifications and those that make sure that it would meet the specification.
Those that ensure the installation meets the required specification and the people that would make sure it would meet the grounding standards. The electrical system would need low impedance way in grounding for protection of people and the equipment. And the second is because of deteriorate and that it does their performance.
Grounding encompasses in two different objective the equipment and earth grounding. The earth grounding is intentional connection that comes from circuit conductor to grounds electrode in earth. The equipment would ensure which operating mechanism in structure be grounded properly.
The driving electrode grounded deeper is very effective path in lowering ground resistance. The soil should not be consistent in resistivity and could unpredictable. Resistance level could generally reduce via additional forty percent and doubling length of the ground electrode, sometimes it is impossible in driving the rods deeper especially in areas that has lots of rock.
The intermittent failures would also create issues from the random shocks on equipment failures which difficult in locating. That equipment is blamed on failure when it really is lacking solid ground. When the random shocks would be experienced in a station shower place, it would be determined in after the extensive testing which portion of building were operating.
The grounding is what should be done when one has to connect the system to the earth. The bonding is connecting the components into grounding system. Both, one would be useless with the other. It means that one could acquire the effective grounding. The absence of it would be lack in effective lower impedance way over that short circuit could flow in ground. That would leave unsafe equipment, enclosures and metal raceway.
The rod is for lacking in bonding to rest of system and was irrelevant. Those assumptions were two hundred fifty feet or so in soil that is between the system and the machine rod that provide the low impedance. The test would show the need of bonding jumpers and other changes.
During last decade, new technology has appeared in market, in form of clamp on tester. That devices were developed for improving the convenience and speed of the exam. Fall in potential exam could labor time and labor intensive consuming. The expedient methods would still require one in straining drive and leads probes. You just have to clamp over ground rod then take the reading. That convenience both be drawback and advantage.
In attempting in calculation in possible short circuit current on power plants then other current situations or high voltage would determine complex of the grounding impedance really is important since impedance would be madding up the capacitive and inductive elements. Because of resistivity and inductivity are known to be the cases, the actual situation could determine using the complex computation which will be useful for later data computation.
Those that ensure the installation meets the required specification and the people that would make sure it would meet the grounding standards. The electrical system would need low impedance way in grounding for protection of people and the equipment. And the second is because of deteriorate and that it does their performance.
Grounding encompasses in two different objective the equipment and earth grounding. The earth grounding is intentional connection that comes from circuit conductor to grounds electrode in earth. The equipment would ensure which operating mechanism in structure be grounded properly.
The driving electrode grounded deeper is very effective path in lowering ground resistance. The soil should not be consistent in resistivity and could unpredictable. Resistance level could generally reduce via additional forty percent and doubling length of the ground electrode, sometimes it is impossible in driving the rods deeper especially in areas that has lots of rock.
The intermittent failures would also create issues from the random shocks on equipment failures which difficult in locating. That equipment is blamed on failure when it really is lacking solid ground. When the random shocks would be experienced in a station shower place, it would be determined in after the extensive testing which portion of building were operating.
The grounding is what should be done when one has to connect the system to the earth. The bonding is connecting the components into grounding system. Both, one would be useless with the other. It means that one could acquire the effective grounding. The absence of it would be lack in effective lower impedance way over that short circuit could flow in ground. That would leave unsafe equipment, enclosures and metal raceway.
The rod is for lacking in bonding to rest of system and was irrelevant. Those assumptions were two hundred fifty feet or so in soil that is between the system and the machine rod that provide the low impedance. The test would show the need of bonding jumpers and other changes.
During last decade, new technology has appeared in market, in form of clamp on tester. That devices were developed for improving the convenience and speed of the exam. Fall in potential exam could labor time and labor intensive consuming. The expedient methods would still require one in straining drive and leads probes. You just have to clamp over ground rod then take the reading. That convenience both be drawback and advantage.
In attempting in calculation in possible short circuit current on power plants then other current situations or high voltage would determine complex of the grounding impedance really is important since impedance would be madding up the capacitive and inductive elements. Because of resistivity and inductivity are known to be the cases, the actual situation could determine using the complex computation which will be useful for later data computation.
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