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The Alaska Interconnection (ASCC) is an AC power transmission grid in North America that serves Central and Southeast Alaska. [1] While the Alaska Interconnection is often referred to as one interconnected grid, its two parts are not connected to each other through interconnectors, nor are the two grids connected to any other interconnection, making the grids in Alaska isolated circuits.
Depiction of New York World Building fire in New York City in 1882. Building codes in the United States are a collection of regulations and laws adopted by state and local jurisdictions that set “minimum requirements for how structural systems, plumbing, heating, ventilation, and air conditioning (), natural gas systems and other aspects of residential and commercial buildings should be ...
The 16 Divisions of construction, as defined by the Construction Specifications Institute (CSI)'s MasterFormat, is the most widely used standard for organizing specifications and other written information for commercial and institutional building projects in the U.S. and Canada.
A building code (also building control or building regulations) is a set of rules that specify the standards for construction objects such as buildings and non-building structures. Buildings must conform to the code to obtain planning permission , usually from a local council.
Davidson Ditch is a 90-mile (140 km) conduit built in the 1920s to supply water to gold mining dredges in central Alaska.It was the first large-scale pipeline construction project in Alaska, and lessons learned in its construction were applied to the building of the Trans-Alaska Pipeline System.
An electrical code is a term for a set of regulations for the design and installation of electrical wiring in a building. The intention of such regulations is to provide standards to ensure electrical wiring systems are safe for people and property, protecting them from electrical shock and fire hazards. They are usually based on a model code ...
Conventional 2-wire or 3-wire distribution lines have a higher power transfer capacity, but can require 7 poles per kilometre (12 poles per mile), with spans of 100 to 150 metres (110 to 160 yards). SWER's high line voltage and low current also permits the use of low-cost galvanized steel wire (historically, No. 8 fence wire). [9]
In 1923, after the railroad began operation and construction was complete, it became the Alaska Railroad Commission, later renamed to The Alaska Railroad. [1] [2] Among other accomplishments, it designed and/or built a number of works listed on the U.S. National Register of Historic Places. [3] Works include: Mears Memorial Bridge, built in 1923