- Enclosure (electrical)
An electrical enclosure is a cabinet for electrical or
electronic equipmentto mount switches, knobs and displays and to prevent electrical shockto equipment users and protect the contents from the environment. The enclosure is the only part of the equipment which is seen by users; in many cases it is designed not only for its utilitarian requirements, but also to be pleasing to the eye.
In the United States, the
National Electrical Manufacturers Associationpublishes standards for the performance of various classes of electrical enclosures. The NEMA standards cover corrosion resistance, ability to protect from rain and submersion, etc.For IEC member countries, standard IEC 60529is classifying the ingress protection rating (IP Codes) of enclosures.
Electrical enclosures are usually made from rigid
plastics, metals, particularly steeland aluminum, and natural or processed wood. They may be made for a specific purpose (e.g., the metal, plastic, or wooden box of a particular radio receiver) or to accommodate any equipment to which they are suited.
Enclosures for some purposes have partially punched openings (knockouts) which can be removed to accommodate
cables, connectors, or conduits. Where they are small and primarily intended to conceal electrical junctions from sight, or protect them from tampering, they are also known as junction boxes; the larger, street furnituretype is often called a "cabinet" or, in American English telephone jargon, Serving area interface.
Fiber to the Telecom Enclosure
* [http://www.nema.org NEMA website] .
* [http://www.necdisplay.com/support/css/Techlibrary/definition.htm NEMA definitions (from NEC webpage)]
* [http://www.altechcorp.com/PDFS/TECHsp.PDF IEC IP definitions, and a comparison of IEC<>NEMA definitions]
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