New guide in download section: A Practical Guide To Earth Resistance Testing by MEGGER. The simplest and somewhat misleading idea of a good ground for an electrical system is a section of iron pipe driven into the earth with a wire conductor connected from the pipe to the electrical circuit. This may, or may not, be a suitable low resistance path for electric current to protect personnel and equipment. A practical earth electrode that provides a low ground resistance is not always easy to obtain. But from experience gained by others you can learn how to set up a reliable system and how to check the resistance value with reasonable accuracy.
Posted on: Sat, 02 Nov 2013 07:59:09 +0000
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