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Grounding Of Electrical Panel |
- protect the entire electrical installation system from the danger of electrical short circuit.
- Grounding systems protect quickly in the event of a failure in the electrical installation.
- grounding system protects against electrical charge jumps.
- minimize significant injury from electric shock.
- protect electronic devices from electric leakage
Determine the right location point
To plant a grounding rod into the ground and get the maximum resistance value (ohms), of course, a method and understanding of good soil structure is needed. sandy and rocky soil structure will produce poor value to the resistance of the grounding system, especially the installation of a shallow grounding rod will have a failure impact on the grounding system. The location with a good soil structure for planting a grounding rod is a moist and watery soil structure because it has conductivity and low resistance. so that the resulting resistance value (ohms) will be maximized.
Make a control basin by digging a hole
After determining a good location point for installing the gronding rod, the next step is to make an ideal control tub (60 x 60 x 80 cm), the purpose of this control tub is as a termination center for ground installation cables that enter the electrical installation system. Another function is as a control center in case of interference with the grounding system.
Inserting the grounding rod in the control tub
Inserting the grounding rod into the ground can be done manually by pounding using a hammer or using tools such as jack hammers and soil drilling machines. to get good and maximum results make sure the depth of the grounding rod reaches at least 2-4 meters.
Make ground wire path
Make a cable path that enters the building by digging a 40 cm deep hole along from the control tub to where the electrical panel is installed. use conduit or pvc pipe on the grounding cable in the building area. this aims to protect users from electric shock if there is a failure in the grounding system.
To install or connect the ground cable to the grounding rod, you should use special welding to connect the cable and grounding rod with the aim of providing maximum results and the life of the grounding system will be durable.
Reclose the excavation of the ground cable line
Make the ground terminal from copper plate or busbar.
The use of grounding systems in commercial, office and industrial buildings should make a ground terminal from a copper busbar with a size of 5x10x300 mm which aims as a grounding cable termination center.
Measuring resistance value (ohm) of grounding system
Detention Value (Ohm) Less than Maximum?
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Measuring the grounding resistance value |
Perform a parallel system if the resulting resistance value does not match the needs, by replanting the grounding rod into the ground at a distance of at least 5 meters from the location of the previously planted grounding rod. Next connect between the first and second grounding rod with a parallel system. after that re-measure the resistance value (ohm).
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