Electrical Code… Over 1000 V…
- Switching Device
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A device designed to close, open, or both, one or more electrical circuits.
- Circuit Breaker
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A switching device capable of making, carrying, and interrupting currents under normal circuit conditions, and also of making, carrying for a specified time, and interrupting currents under specified abnormal circuit conditions, such as those of short circuit.
- Cutout
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An assembly of a fuse support with either a fuseholder, fuse carrier, or disconnecting blade. The fuseholder or fuse carrier may include a conducting element (fuse link) or may act as the disconnecting blade by the inclusion of a nonfusible member.
- Disconnecting Means
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A device, group of devices, or other means whereby the conductors of a circuit can be disconnected from their source of supply.
- Disconnecting (or Isolating) Switch (Disconnector, Isolator)
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A mechanical switching device used for isolating a circuit or equipment from a source of power.
- Interrupter Switch
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A switch capable of making, carrying, and interrupting specified currents.
- Oil Cutout (Oil-Filled Cutout)
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A cutout in which all or part of the fuse support and its fuse link or disconnecting blade is mounted in oil with complete immersion of the contacts and the fusible portion of the conducting element (fuse link) so that arc interruption by severing of the fuse link or by opening of the contacts will occur under oil.
- Oil Switch
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A switch having contacts that operate under oil (or askarel or other suitable liquid).
- Regulator Bypass Switch
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A specific device or combination of devices designed to bypass a regulator.
(National Electrical Code® 100-2)