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.
Its bonding offers connection all to ground conductors in electrical system. The fault grounding systems protect primarily equipment meanwhile the ground circuit fault protection would keep people safe. But the great grounding system in world would not provide protection if those electrical components in facility not bonded in it. The bonds could not offer the protection without the grounding.
In example for that is that he should not do resistance test after major rainfall outcomes would be favorable overly. The person would want to repeat the test in dry land like yesterday rather than in wet land. One must understand on ways in doing the test correctly and the points of the measurement to be selected.
Using variety of ground electrodes would provide another path in lowering the ground resistance. In more than electrode would driven in ground and then connected on parallel in lowering resistance. Additional electrodes in effectivity, spacing of the additional steel should least equal in depth of driven rod. Then increasing diameter of ground electrode very effect lowering resistance. You would double diameter of ground electrode and the resistance could decrease in ten percent.
The bonds or connections would be loosened over time. Wrong materials that was used in forming the initial connection could fail in even after adequate previously. The corrosion could damage those connectors and rods. In extreme case, the chemicals that were contained in dissolved rods which has fully tested in installation.
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.
This be the most commonly use method for testing in newly installation of grounding systems. The soil got lots of layers that could cause resistance in varying greatly. The soil restively could test with resistance tester. There are lots of other factors which could affect the local resistivity, one should perform the resistivity test a bunch of times, with stakes that laid out on different directions. In ensuring the configuration, one should study those parts and develop the area profile.
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.
Its bonding offers connection all to ground conductors in electrical system. The fault grounding systems protect primarily equipment meanwhile the ground circuit fault protection would keep people safe. But the great grounding system in world would not provide protection if those electrical components in facility not bonded in it. The bonds could not offer the protection without the grounding.
In example for that is that he should not do resistance test after major rainfall outcomes would be favorable overly. The person would want to repeat the test in dry land like yesterday rather than in wet land. One must understand on ways in doing the test correctly and the points of the measurement to be selected.
Using variety of ground electrodes would provide another path in lowering the ground resistance. In more than electrode would driven in ground and then connected on parallel in lowering resistance. Additional electrodes in effectivity, spacing of the additional steel should least equal in depth of driven rod. Then increasing diameter of ground electrode very effect lowering resistance. You would double diameter of ground electrode and the resistance could decrease in ten percent.
The bonds or connections would be loosened over time. Wrong materials that was used in forming the initial connection could fail in even after adequate previously. The corrosion could damage those connectors and rods. In extreme case, the chemicals that were contained in dissolved rods which has fully tested in installation.
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.
This be the most commonly use method for testing in newly installation of grounding systems. The soil got lots of layers that could cause resistance in varying greatly. The soil restively could test with resistance tester. There are lots of other factors which could affect the local resistivity, one should perform the resistivity test a bunch of times, with stakes that laid out on different directions. In ensuring the configuration, one should study those parts and develop the area profile.
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