installation of ducts

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• Duct (HVAC) — A round galvanized steel duct connecting to a typical diffuser Fire resistance rated …   Wikipedia

• Microducts — Protective duct with bundle of microducts and cable Microducts are small ducts for the installation of small microduct fibre optic cables. They have a size ranging from typically 3 to 16 mm and are installed as bundles in larger ducts. Contents 1 …   Wikipedia

• Cable jetting — is a technique to install cables in ducts [http://www.plumettaz.ch/en/products/optical fiber/jetting explanation.asp] . It is commonly used to install cables with optical fibers in underground polyethylene ducts and is an alternative to pulling …   Wikipedia

• HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… …   Wikipedia

• Common utility duct — A common utility duct, sometimes called a common utility conduit, is any structure – above, on, or below ground – that carries more than two types of public utility lines. However, the phrase often refers specifically to underground utility… …   Wikipedia

• Air conditioner — For general aspects of air conditioning, see Air conditioning. A typical home air conditioning unit. An air conditioner (often referred to as AC) is a home appliance, system, or mechanism designed to dehumidify and extract heat from an area. The… …   Wikipedia

• National Broadband Network — The National Broadband Network (NBN) is a national wholesale only, open access data network under development in Australia. Up to one gigabit per second connections are sold to retail service providers (RSP), who then sell Internet access and… …   Wikipedia

• Furnace — For other uses, see Furnace (disambiguation). Industrial Furnace from 1907 A furnace is a device used for heating. The name derives from Latin fornax, oven. In American English and Canadian English, the term furnace on its own is generally used… …   Wikipedia

• Building insulation materials — A selection of insulation materials can aid in building insulation. All of these are based on standard principles of thermal insulation. Materials used to reduce heat transfer by conduction, radiation or convection are employed in varying… …   Wikipedia

• Dornier Do 217 — Do 217 Do 217 E 2 Role Medium bomber Heavy bomber …   Wikipedia

• Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …   Wikipedia