An electrical cage is a cabinet for electrical or electronic equipment to install switches, knobs and displays and to prevent electric shocks for users of the equipment and to protect content from the environment. Enclosures are the only piece of equipment that the user sees; in many cases it is designed not only for its utilitarian requirements, but also for pleasing the eye. Regulations can determine the features and performance of enclosures for electrical equipment in hazardous areas, such as petrochemical plants or coal mines. Electronic packaging can place many requests on a shell for heat dissipation, radio frequency interference and static discharge protection, as well as functional, aesthetic and commercial restrictions.
Video Electrical enclosure
Standard
In the United States, the National Electrical Manufacturers Association (NEMA) publishes standard NEMA type enclosures for the performance of various classes of electrical enclosures. NEMA standards include corrosion resistance, ability to protect from rain and soaking, etc.
For IEC member countries, the IEC 60529 standard classifies the incoming IP codes (IP Codes) from attachments.
Maps Electrical enclosure
Materials
Electrical enclosures are usually made of rigid plastic, metal, especially stainless steel, carbon steel, and aluminum. Steel cabinets can be painted or galvanized. Mass-produced equipment will generally have customized enclosures, but standard enclosures are made for special or small production equipment. For non-metallic cover; ABS plastics are only acceptable for indoor applications requiring low NEMA ratings (1, or 2), and are inadequate for harsh environments. For NEMA 3 and above polycarbonate, reinforced glass, polycarbonate, and fiberglass boxes are used and have a gasket to ensure dry and dust free areas in the box.
Terminology
Cages for some destinations have partially removable (KO) openings to accommodate cables, connectors, or channels. Where they are small and are primarily intended to hide electrical intersections from view, or protect them from interference, they are also known as junction boxes, walkers or technically as the serving area interfaces.
Telecommunications
Telcordia Technologies has proposed a general requirement for telecommunication equipment cabinets. This requirement was developed with input from US service providers, and is intended to provide an appropriate environment for telecommunication equipment and passive electronics companies placed in cabinets or above ground enclosures (usually installed above or below) within the outside of the factory environment. The proposed standards include functional design criteria, general mechanical and environmental requirements, desired features, and performance tests.
Telecommunication huts are fully assembled or modular structures that can be transported within a framework capable of accommodating electronic communication systems. These booths provide a controlled internal environment for communication equipment and the occasional craftsman. The cottage is designed with keys, security, and alarms to prevent unauthorized access. The cottage can be equipped with decorative facade to meet local building requirements. Telecommunication huts are designed to withstand the climatic conditions that exist throughout the United States including rain, snow, hail, strong winds, ice, sandstorms, earthquakes, and lightning.
Electronic appliance cabinets can be placed in both indoor and outdoor locations. As described in the industry standard GR-3031 and GR-3033, cabinets comprise an out-finished closure box along with integral hardware components, such as the connection and ground connection; internal walls and braces for space splicing and battery compartment; frame and track rack; and doors, seals, and hinges.
Battery backup cabinet
Battery backup cabinets are used exclusively and exclusively for backup battery facilities in both indoor and outdoor locations. As described in GR-3033, this cabinet may or may not have a separate room for electronics used to monitor, alarm, and control it.
In-room backup cabinet cabinets include cabinets placed inside the outer physical envelope of buildings or structures where space has active environmental controls to control the temperature, humidity, and air quality of the ambient space. These include cabinets located in domes, covered stadiums and closed garages. It also includes cabinets placed inside a physical envelope outside the building or structure in which space has no active environmental control (for example, cabinets found in engine room or unheated/un-heated furnaces).
Outdoor battery cabinets include cabinets placed outside the physical envelope outside the building or structure (for example, roof-mounted cabinets, or outside buildings), and cabinets located in open parking garages and open stadiums where cabinets can be exposed outside conditions weather and pollution levels..
See also
- 19 inch rack
- Cable management
- DIN inline
- Housing (engineering)
- Shelf units
- Telco can
- Dome utility
References
External links
- The NEMA website.
- The IP Definition of IEC, and the comparison of definitions of IEC & lt; & gt; NEMA
- Information Web Sites Relating to the Electrical Enclosure
- Type of Enclosures
- Electrical Enclosures with Terminal
Source of the article : Wikipedia
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