Aspen Home Services Learning Center
Electrical Glossary
Plain-language definitions for common electrical safety, panel, wiring, charging, and backup-power terms.
Electrical terms
- AFCI
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An arc-fault circuit interrupter detects electrical arcing patterns and disconnects the circuit to reduce fire risk.
Explore the related guide or service → - GFCI
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A ground-fault circuit interrupter quickly disconnects power when current follows an unintended path, helping reduce shock risk.
Explore the related guide or service → - Ampacity
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The maximum current a conductor can carry continuously under its installation conditions without exceeding its temperature rating.
Explore the related guide or service → - Bonding
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The intentional connection of conductive parts so they share electrical continuity and provide an effective fault-current path.
Explore the related guide or service → - Circuit breaker
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A reusable overcurrent protective device that opens a circuit when current exceeds safe operating limits.
Explore the related guide or service → - Dedicated circuit
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A branch circuit reserved for one appliance or load rather than shared among multiple outlets or devices.
Explore the related guide or service → - Electrical panel
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The distribution equipment that receives power and divides it among protected branch circuits in a building.
Explore the related guide or service → - Grounding
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The connection of an electrical system to earth and the equipment-grounding network used for voltage stabilization and fault safety.
Explore the related guide or service → - Load calculation
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A code-based evaluation of expected electrical demand used to size services, feeders, and related equipment.
Explore the related guide or service → - Service upgrade
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A coordinated increase or modernization of the electrical service capacity and associated equipment.
Explore the related guide or service → - Surge protection
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Equipment that limits transient overvoltage before it can damage connected electrical and electronic devices.
Explore the related guide or service → - Transfer switch
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A device that safely transfers selected loads or a service between normal utility power and an alternate source.
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