extension cord

Thân thiện

A man plugs an extension cord into a wall outlet to power a lamp.

Definition

Noun: An extension cord is a flexible electrical cable with a plug on one end and one or more sockets on the other end. Its primary purpose is to temporarily extend the reach of a power cord from an electrical outlet to a device that is farther away.

Usage

The term extension cord is used to describe the specific object that provides additional length for electrical power. It is a count noun. - Always use "an" or the plural "extension cords" when referring to it. - It is typically used in contexts involving electricity, home appliances, tools, or temporary setups.

Examples

• Noun:
  • I need an extension cord to plug in the lamp because the outlet is across the room.
  • The workshop has several heavy-duty extension cords for the power tools.
  • Please unplug the extension cord when you're finished to save energy.

Advanced Usage

• "to run/use an extension cord": This phrase describes the action of deploying the cord.
  • We had to run an extension cord from the garage to power the outdoor lights.
• Often specified by type, such as "indoor extension cord," "outdoor extension cord," or "heavy-duty extension cord," which indicate its safety rating and intended use.

Variants and Related Words

• Power strip (noun): A device with multiple sockets, often mounted on a short cord or directly on a housing. While it may provide some extension, its primary function is to offer multiple outlets, not necessarily extra length.
• Reel cord (noun): An extension cord that is wound on a reel for storage.
• Extender lead (noun): A less common synonym, primarily used in British English.

Synonyms

• Power extension cable: A more formal or technical term.
• Extension lead: Common in British English.

Related Phrases

• "Daisy-chaining" extension cords: Connecting multiple extension cords together in series. This is generally discouraged as it can be a fire hazard.
  • Avoid daisy-chaining extension cords for high-power appliances.

Notes on Safety

• Using an extension cord is meant to be a temporary solution. Permanent wiring is recommended for long-term needs.
• The cord's rating (amperage/wattage) must be suitable for the connected device to prevent overheating.

Học thuật

Noun

1. an electric cord used to extend the length of a power cord