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The Engineering Language by Ronald Hanifan

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EARTH ELECTRODE SUBSYSTEM    A network of electrically interconnected rods, plates, mats, or grids installed for the purpose of establishing a low-resistance contact with earth.

EARTHING    The process of making a satisfactory electrical connection between the structure, including the metal skin, of an object or vehicle, and the mass of the earth to ensure a common potential with the earth.

EASE OF MAINTENANCE    The degree of facility with which equipment can be retained in, or restored to, operation. It is a function of the rapidity with which maintenance operations can be performed to avert malfunctions or correct them if they occur. Ease of ...

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