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A voltage detector detects the presence of electricity and can be simple or advanced. Electricians use them to determine if a power system is running on electricity, and they come in various shapes and sizes. They should only be used within recommended voltage ranges, and high-voltage workers should wear protective clothing.
A voltage detector is a device that tells the user if an object has an electrical charge. It can be a simple pen-shaped piece of test hardware that indicates the presence of electricity, or it can be an advanced tool used to detect precise voltage levels in electrical systems. Voltage detectors use visual or audible signals to tell the user if voltage is present. Some feature lights and numbers that indicate the voltage level, while a less advanced voltage detector might simply beep to indicate that there is a detectable voltage level.
Voltage detectors are used by electricians of various kinds, from internal electricians to external workers on power poles. They use voltage detectors to tell them if any part of a power system is running on electricity. This type of hardware device comes in many shapes and sizes depending on the purpose of the test.
High up on a power pole, an electrician uses the voltage detector to determine which power lines are live, which are keeping him safe, and which help him do his job accurately and efficiently. An electrician using a voltage detector inside a home often plugs a device that looks a lot like a flashlight into a building’s electrical outlets to determine if the outlets are receiving electricity. This can be a troubleshooting tool used to determine power problems in a building, or it can be used to check electrical installation or repairs to an electrical system.
In areas where wet weather is a problem for electricians, voltage detectors can be specially designed to provide safer operation in wet conditions. Voltage detectors are tested and rated for use within certain voltage ranges. Using a voltage detector on a voltage higher than that for which it is recommended will not be accurate and could be dangerous. High voltage sensing should be done with hardware rated for the voltage levels believed to be present in the tested power line, even though electrical power may not be present.
Even though the voltage may not be present, electricians dealing with high voltage should still wear protective clothing that is insulated against high voltage electrical charges. This equipment includes insulated hand gear and dielectric footwear. Made of special rubber, dielectric footwear protects a high-voltage worker by breaking his or her conductive connection to earth near the power line. This type of footwear is especially important with high-voltage equipment because higher voltages can cause arcing or jumping through the air onto a nearby conductive object such as a person.
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