cầu dao

Friendly

The Vietnamese word "cầu dao" refers to a "knife-switch," which is a type of electrical switch that can control the flow of electricity. It consists of a metal blade that can be moved to connect or disconnect electrical circuits.

Basic Explanation:

• Meaning: "Cầu dao" is primarily used in electrical contexts to describe a switch that can turn power on or off.
• Usage: You would typically find "cầu dao" in electrical panels or control rooms where managing power supply is necessary.

Example:

• In a sentence: "Khi có sự cố điện, chúng ta cần phải tắt cầu dao để đảm bảo an toàn."
  • (Translation: "In case of an electrical fault, we need to turn off the knife-switch to ensure safety.")

Advanced Usage:

• In industrial settings, "cầu dao" can be used as a safety measure to quickly disconnect power from machines to prevent accidents during maintenance.

Word Variants:

• Cầu dao tự động: This refers to an automatic switch that operates without manual intervention.
• Cầu dao điện: Specifically refers to an electrical switch.

Different Meanings:

While "cầu dao" mainly refers to a knife-switch in electrical terms, it can also be metaphorically used to denote making a decisive choice or change in a situation, similar to "turning on" or "turning off" something in life.

Synonyms:

• Công tắc – This is a more general term for "switch" that can refer to various types of switches, not just knife-switches.
• Cầu dao ngắt: This means a disconnect switch, which is similar to "cầu dao" but emphasizes the function of breaking the circuit.

Academic

1. Knife-switch