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Where the danger of electric shock is high, special ungrounded power systems may be used to minimize possible leakage current to ground. Examples of such installations include patient care areas in hospitals, where medical equipment is directly connected to a patient and must not permit any power-line current to pass into the patient's body.
A ground connection that is missing or of inadequate capacity may not provide the protective functions as intended during a fault in the connected equipment. Extra connections between ground and circuit neutral may result in circulating current in the ground path, stray current introduced in the earth or in a structure, and stray voltage.
An example showing mains-powered electronic instruments with a floating ground. (Demonstrates three of the typical reasons for a floating ground.) Fourthly, a floating ground can help eliminate ground loops, [3] which reduces the noise coupled to the system. The image on the right shows an example of such a configuration.
The ground loop still exists, but the two sides of the loop are close together, so stray magnetic fields induce equal currents in both sides, which cancel out. Break in the shield Create a break in the signal cable shield conductor. [5] The break should be at the load end. This is often called ground lifting. It is the simplest solution; it ...
Grounds is the plural of ground. Grounds may also refer to: Coffee grounds, granulated remains of coffee beans after grinding for coffee; Grounds, in law, a rational motive or basis for a belief, conviction, or action taken, such as a legal action or argument: Grounds for divorce
A detail of a self-portrait by Rembrandt.Three scratches in the center reveal the reddish ground. In visual arts, the ground (sometimes called a primer) is a prepared surface that covers the support of the picture (e.g., a canvas or a panel) and underlies the actual painting (the colors are overlaid onto the ground).
A chassis ground is a link between different metallic parts of a machine to ensure an electrical connection between them. [1] Examples include electronic instruments and motor vehicles. Usages
Spreading grounds are one of several available technologies, and are useful to harness storm water runoff in populated areas with low annual precipitation. For example, Los Angeles County, California has 27 such facilities, and four more operated in conjunction with the department [clarification needed], many of which date to the 1930s. [3] [4]