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de-energize

American  
[dee-en-er-jahyz] / diˈɛn ərˌdʒaɪz /
especially British, de-energise

verb (used with object)

de-energized, de-energizing
  1. to deprive of electrical energy or exhaust the electrical energy from.

    Turning off the ignition de-energizes the spark plugs.


de-energize British  
/ diːˈɛnəˌdʒaɪz /

verb

  1. (tr) electrical engineering to disconnect (an electrical circuit) from its source

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of de-energize

First recorded in 1885–90; de- + energize ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

For instance, multiple lawsuits allege Edison’s equipment ignited the deadly Eaton fire after the utility failed to de-energize overhead wires during a Jan. 7 wind event.

From Los Angeles Times Jan. 25, 2025

Afterwards, the local Salt River Project power utility was called to de-energize the pole.

From Washington Times Dec. 7, 2023

The project required Metro to coordinate with Pepco, which will de-energize power transmission lines 15 feet above the station canopies.

From Washington Post Jan. 28, 2023

“Despite this extreme risk, and during a historic heat wave, low humidity and strong winds, SCE did not de-energize its power lines in the area where the fire started.”

From Los Angeles Times Sep. 23, 2022

The passive and contemplative following of thought, my own or other people's, must not de-energize my sympathies and my will.

From Julia Ward Howe 1819-1910 by Maud Howe Elliott

At staging areas, the batteries are de-energized, disassembled, recycled and disposed of safely, she said.

From Los Angeles Times Feb. 5, 2025

Additionally, the company said its distribution lines to the west of Eaton Canyon "were de-energized well before the reported start time of the fire" as part of its fire safety shutoff program.

From BBC Jan. 16, 2025

In the early afternoon — before the initial fire flared back up and began overtaking the town — a utility worker told fire crews that he could not confirm if the lines were de-energized.

From Seattle Times Apr. 17, 2024

At that moment, Trump took a long-defeated sigh, and looked up at the ceiling blankly, looking confused and de-energized.

From Salon Mar. 14, 2024

So de-energized, the armature falls back and the cycle is repeated until the button contact is released.

From Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. by Kempster Miller

“We can look after the fact and see that the consequences of potentially not de-energizing the transmission lines are enormous,” he said.

From Los Angeles Times Feb. 13, 2025

The CEO of Southern California Edison told The Times earlier this month that winds were not strong enough to merit de-energizing a powerful electrical transmission line.

From Los Angeles Times Jan. 26, 2025

Edison’s CEO has said that winds weren’t strong enough to merit de-energizing lines in the area.

From Los Angeles Times Jan. 25, 2025

Powell said Edison was monitoring the weather closely Jan. 7 but said the winds did not meet the threshold the company uses for de-energizing transmission lines.

From Los Angeles Times Jan. 15, 2025

You shall come with me and with your own eyes watch the de-energizing of New York and Paris and Berlin.

From The Winged Men of Orcon A Complete Novelette by David R. Sparks

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