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The head of a pike pole with various implements for pulling items The head of a short firefighter's pike pole. A pike pole is a long metal-topped wooden, aluminium or fiberglass pole used for reaching, hooking and/or pulling on another object. They are variously used in boating, construction, logging, rescue and recovery, power line maintenance ...
Poles, from which these buildings get their name, are natural shaped or round wooden timbers 4 to 12 inches (100 to 300 mm) in diameter. [4] The structural frame of a pole building is made of tree trunks, utility poles, engineered lumber or chemically pressure-treated squared timbers which may be buried in the ground or anchored to a concrete slab.
Making a ton of primary aluminum consumes at least 12,500 kW-hr, and most plants consume 14,500 to 15,000 kW-hr per ton of primary aluminum. [18] Secondary production of a given unit of aluminum requires about 10% of the electricity of primary production. The United States mined production of bauxite for primary aluminum production is ...
Tubular steel poles are typically used in urban areas. High-voltage lines are often carried on lattice-type steel towers or pylons. For remote areas, aluminum towers may be placed by helicopters. [5] [6] Concrete poles have also been used. [2] Poles made of reinforced plastics are also available, but their high cost restricts application.
Aluminum in power transmission and distribution applications is still the preferred wire material today. [3] In North American residential construction, aluminum wire was used for wiring entire houses for a short time from the 1960s to the mid-1970s during a period of high copper prices.
A storey pole (or story pole, storey rod, [1] story stick, [2] jury stick, [3] scantling, [4] scantillon [5]) is a length of narrow board usually cut to the height of one storey. [6] It is used as a layout tool for any kind of repeated work in carpentry including stair-building , framing , timber framing , siding , brickwork , and setting tiles.