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Me llamo David Guzmán y soy profesor de Instalaciones Electroténicas en un instituto de Extremadura.

Types of transformation centre. UTILITY POLES. This pole is a replica of an original telegraph pole, one of hundreds that once stood along the Transcontinental Railroad.


The Transcontinental Railroad was built by two companies, the Union Pacific (building west from Omaha) and the Central Pacific (building east from Sacramento). The two companies met at Promontory Summit, Utah, north of the Great Salt Lake, in May, 1869. The site is now known as the Golden Spike National Historic Site, operated by the National Park Service with the assistance of volunteers who act as docents, exhibit-makers, locomotive engineers, and locomotive firemen.

On May 10, 1869, a ceremony marked the completion of the railroad. Types of Electricity poles .png. Electricity Transmission and Distribution (preview) Electrical Power Distribution Network.