lightning-arrester

A lightning-arrester protects the radio tower during a storm.

Definition

1. Noun:
   • Device for protecting electrical equipment: A "lightning-arrester" is a device used to protect electrical systems and equipment from damage caused by lightning strikes. It works by diverting the high voltage from a lightning bolt safely to the ground, preventing it from passing through the protected circuit.
   • Component in power and radio systems: In electrical engineering, a "lightning-arrester" is specifically designed for use in machines, radios, and power lines to absorb or redirect surge currents.

Usage Examples

• (A protective device for electrical lines.)
• (A safeguard against lightning damage.)

Advanced Usage

• "lightning-arrester gap": a specific type of arrester that uses an air gap to discharge lightning current.

  • The lightning-arrester gap must be properly calibrated to function effectively. (The spacing in the arrester is critical for operation.)

• "lightning-arrester grounding": the process of connecting the arrester to the earth to ensure safe dissipation of electrical energy.

  • Proper lightning-arrester grounding reduces the risk of fire. (The connection to the ground is essential.)

Variants and Related Words

• Arrester (n): a device that stops or prevents something, often used in electrical contexts.

  • The arrester failed during the storm. (The protective device did not work.)

• Lightning rod (n): a similar device, typically a metal rod mounted on a building to attract lightning and conduct it to the ground.

  • The church has a lightning rod on its steeple. (A different but related protective device.)

Synonyms

• Surge protector: a device that protects equipment from voltage spikes, including those from lightning.
• Lightning diverter: another term for a lightning-arrester, emphasizing its function of redirecting current.

Related Idioms

• "Lightning never strikes twice": a saying that something unlikely will not happen again (not directly related to the arrester, but a common idiom involving lightning).
  • He thought lightning never strikes twice, but his house was hit again. (An ironic use of the idiom.)