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Commonwealth Edison, commonly known by syllabic abbreviation as ComEd, is the largest electric utility in Illinois, and the primary electric provider in Chicago and much of Northern Illinois. Its service territory stretches roughly from Iroquois County on the south to the Wisconsin border on the north and from the Iowa border on the west to the ...
It was a result of a transmission failure due to a lightning strike on power lines. A second lightning strike caused the loss of two more overhead power lines, and the last power connection between New York City and the Northwest. The power outage resulted in high instances of looting occurring over 26 hours. [37]
In software engineering, double-checked locking (also known as "double-checked locking optimization" [1]) is a software design pattern used to reduce the overhead of acquiring a lock by testing the locking criterion (the "lock hint") before acquiring the lock.
In business, an overhead or overhead expense is an ongoing expense of operating a business. Overheads are the expenditure which cannot be conveniently traced to or identified with any particular revenue unit, unlike operating expenses such as raw material and labor.
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, electric multiple units, trolleybuses or trams. The generic term used by the International Union of Railways for the technology is overhead line . [ 1 ]
Con Ed plant on the East River at 15th Street in Manhattan, New York City. Consolidated Edison, Inc., commonly known as Con Edison (stylized as conEdison) or ConEd, is one of the largest investor-owned energy companies in the United States, with approximately $12 billion in annual revenues as of 2017, and over $62 billion in assets. [3]
It was an 11 kV, 25 Hz overhead electrification in a mountain region with a major tunnel (Elkhorn Tunnel). [20] When the grade was bypassed with a new line in 1950, the line was abandoned. Despite most other US railroads dieselizing at this time, the N&W would not begin this process until 1955, thus making the Elkhorn Grade the last American ...
A pre-determined overhead rate is normally the term when using a single, plant-wide base to calculate and apply overhead. Overhead is then applied by multiplying the pre-determined overhead rate by the actual driver units. Any difference between applied overhead and the amount of overhead actually incurred is called over- or under-applied overhead.