What Is Meggered?
Electricians use the word "meggered" when they have used an ohmmeter on an electrical circuit. The instrument is used to diagnose problems in circuits.
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Facts
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"Meggered" is a slang term electricians use when they refer to the usage of a brand-name ohmmeter. Megger is the company that specializes in instruments and equipment for electrical testing, including the ohmmeter.
Function
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An ohmmeter measures the electrical resistance, or friction, of an electrical circuit The resistance is measured in ohms. According to the Merriam-Webster Dictionary, an ohm is defined as "the practical meter-kilogram-second unit of electric resistance equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere."
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Significance
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An ohmmeter can diagnose a loose connection in an electrical circuit. Electricians use the ohmmeter to determine whether there may be a faulty wire, connection or switch.
Considerations
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A voltmeter can be used to determine the issue in an automobile-related electrical problem. The ohmmeter is not always sensitive enough to measure the resistance in an automobile electrical system.
Fun Fact
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The symbol for ohm is the Greek letter omega. Ohm's Law was named for George Simon Ohm, the physicist who determined the relationship between the volts, resistance and currents.
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