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Required procedures for performing design tests for high-voltage distribution-class and power-class fuses, as well as for fuse disconnecting switches and enclosed single-pole air switches are specified. These design tests, as appropriate to a particular device, include the following test types-dielectric, interrupting, load-break, making current, radio-influence, short-time current, temperature-rise, time-current, mechanical, and liquid-tightness.
Electric fuses --- Electric switchgear --- Standards. --- Electric switches --- Switches, Electric --- Electric apparatus and appliances --- Fuses, Electric --- Protection
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Electrical engineering. --- Electric switchgear. --- Electric switches --- Switches, Electric --- Electric apparatus and appliances --- Electric engineering --- Engineering
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Electric switchgear. --- Electrical engineering. --- Electric engineering --- Engineering --- Electric switches --- Switches, Electric --- Electric apparatus and appliances
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Electric insulators and insulation --- Electric switchgear. --- Epoxy resins. --- Electric switches --- Switches, Electric --- Electric apparatus and appliances --- Epoxy resins
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Electric circuit-breakers --- Electric machinery --- Electric switchgear --- Standards. --- Alternating current --- Electric switches --- Switches, Electric --- Electric apparatus and appliances --- Electromechanical devices --- Machinery --- Circuit-breakers, Electric --- Protection --- Electric circuit-breakers.
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Push a button and turn on the television; tap a button and get a ride; click a button and "like" something. The touch of a finger can set an appliance, a car, or a system in motion, even if the user doesn't understand the underlying mechanisms or algorithms. How did buttons become so ubiquitous? Why do people love them, loathe them, and fear them? In Power Button, Rachel Plotnick traces the origins of today's push-button society by examining how buttons have been made, distributed, used, rejected, and refashioned throughout history. Focusing on the period between 1880 and 1925, when "technologies of the hand" proliferated (including typewriters, telegraphs, and fingerprinting), Plotnick describes the ways that button pushing became a means for digital command, which promised effortless, discreet, and fool-proof control. Emphasizing the doubly digital nature of button pushing-as an act of the finger and a binary activity (on/off, up/down)-Plotnick suggests that the tenets of precomputational digital command anticipate contemporary ideas of computer users.
Electric switchgear --- Industrial Revolution. --- Object (Philosophy). --- Remote control --- Social psychology. --- Psychological aspects --- History. --- Industrial revolution. --- Object (Philosophy) --- SCIENCE, TECHNOLOGY & SOCIETY/History of Technology --- ECONOMICS/Labor Studies --- SOCIAL SCIENCES/Sociology --- Philosophy --- Revolution, Industrial --- Economic history --- Social history --- Mass psychology --- Psychology, Social --- Human ecology --- Psychology --- Social groups --- Sociology --- Electric switches --- Switches, Electric --- Electric apparatus and appliances --- Electric control, Remote --- Electric controllers --- Engineering instruments --- Vehicles, Remotely piloted
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