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Twist-lock Connector
NEMA connectors are power plugs and receptacles used for AC mains electricity in North America and other countries that use the standards set by the US National Electrical Manufacturers Association. NEMA wiring devices are made in current ratings from 15 to 60 amperes (A), with voltage ratings from 125 to 600 volts (V). Different combinations of contact blade widths, shapes, orientations, and dimensions create non-interchangeable connectors that are unique for each combination of voltage, electric current carrying capacity, and grounding system. NEMA 1-15P (two-pole, no ground) and NEMA 5-15P (two-pole with ground pin) plugs are used on common domestic electrical equipment, and NEMA 5-15R is the standard 15-ampere electric receptacle (outlet) found in the United States, and under relevant national standards, in Canada (''CSA C22.2 No. 42''), Mexico (''NMX-J-163-ANCE'') and Japan (''JIS C 8303''). Other plug and receptacle types are for special purposes or for heavy-duty appl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Travel Trailers
A caravan, travel trailer, camper, tourer or camper trailer is a trailer towed behind a road vehicle to provide a place to sleep which is more comfortable and protected than a tent (although there are fold-down trailer tents). It provides the means for people to have their own home on a journey or a vacation, without relying on a motel or hotel, and enables them to stay in places where none is available. However, in some countries campers are restricted to designated sites for which fees are payable. Caravans vary from basic models which may be little more than a tent on wheels to those containing several rooms with all the furniture and furnishings and equipment of a home. Construction of the solid-wall trailers can be made of metal or fiberglass. Travel trailers are used principally in North America, Europe, Australia and New Zealand. History In Europe, the origins of travel trailers and caravanning can be traced back to the travelling Romani people, and showmen who spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEMA 1-20P
NEMA connectors are power plugs and receptacles used for AC mains electricity in North America and other countries that use the standards set by the US National Electrical Manufacturers Association. NEMA wiring devices are made in current ratings from 15 to 60 amperes (A), with voltage ratings from 125 to 600 volts (V). Different combinations of contact blade widths, shapes, orientations, and dimensions create non-interchangeable connectors that are unique for each combination of voltage, electric current carrying capacity, and grounding system. NEMA 1-15P (two-pole, no ground) and NEMA 5-15P (two-pole with ground pin) plugs are used on common domestic electrical equipment, and NEMA 5-15R is the standard 15-ampere electric receptacle (outlet) found in the United States, and under relevant national standards, in Canada (''CSA C22.2 No. 42''), Mexico (''NMX-J-163-ANCE'') and Japan (''JIS C 8303''). Other plug and receptacle types are for special purposes or for heavy-duty appl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEMA 1-15P
The National Electrical Manufacturers Association (NEMA) is the largest trade association of electrical equipment manufacturers in the United States. Founded in 1926, it advocates for the industry, and publishes standards for electrical products. Notably, the form of US household electrical outlets and plugs is specified by NEMA. Description It was founded in 1926 and maintains its headquarters in Rosslyn, Virginia, in the Washington metropolitan area. Its approximately 350 member companies manufacture products used in the generation, transmission, distribution, control, and end use of electricity. These products are used in utility, industrial, commercial, institutional, and residential applications. The association's Medical Imaging and Technology Alliance (MITA) division represents manufacturers of cutting-edge medical diagnostic imaging equipment including MRI, CT, x-ray, and ultrasound products. Other major end markets include building systems, electrical infrastructure, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEMA 1-15R
The National Electrical Manufacturers Association (NEMA) is the largest trade association of electrical equipment manufacturers in the United States. Founded in 1926, it advocates for the industry, and publishes standards for electrical products. Notably, the form of US household electrical outlets and plugs is specified by NEMA. Description It was founded in 1926 and maintains its headquarters in Rosslyn, Virginia, in the Washington metropolitan area. Its approximately 350 member companies manufacture products used in the generation, transmission, distribution, control, and end use of electricity. These products are used in utility, industrial, commercial, institutional, and residential applications. The association's Medical Imaging and Technology Alliance (MITA) division represents manufacturers of cutting-edge medical diagnostic imaging equipment including MRI, CT, x-ray, and ultrasound products. Other major end markets include building systems, electrical infrastructu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volt
The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI). It is named after the Italian physicist Alessandro Volta (1745–1827). Definition One volt is defined as the electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points. Equivalently, it is the potential difference between two points that will impart one joule of energy per coulomb of charge that passes through it. It can be expressed in terms of SI base units ( m, kg, second, s, and ampere, A) as : \text = \frac = \frac = \frac. It can also be expressed as amperes times ohms (current times resistance, Ohm's law), webers per second (magnetic flux per time), watts per ampere (power per current), or joules per coulomb (energy per charge), which is also equivalent to electronvolts per elementary charge: : \text = \tex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westford Academy
Westford Academy is the public high school for the town of Westford, Massachusetts, United States. It was incorporated in 1792 and is one of the oldest public high schools in the United States. History Westford Academy (WA) was founded as a private school in 1792, "for children 'of any nation, age, or sex.'" As long as students could read the Bible and pay the required 9 shillings a term, both boys and girls were allowed to attend. WA became a public school in 1928 after a town meeting vote on April 30, 1928, when " e residents of Westford agreed to purchase the “Westford Academy” from the Trustees of the academy." A group of trustees has been retained to this day, and they bestow scholarships upon graduating seniors at an annual ceremony in May. There have been four Westford Academy buildings: * First Westford Academy building (1794-1896) on Boston Road. This building currently serves as the Westford Museum. * Second Westford Academy Building (1897-1955) on Main Stree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emergency Evacuation
Emergency evacuation is the urgent immediate egress or escape of people away from an area that contains an imminent threat, an ongoing threat or a hazard to lives or property. Examples range from the small-scale evacuation of a building due to a storm or fire to the large-scale evacuation of a city because of a flood, bombardment or approaching weather system, especially a tropical cyclone. In situations involving hazardous materials or possible contamination, evacuees may be decontaminated prior to being transported out of the contaminated area. Evacuation planning is an important aspect of business management of which emergency evacuation forms a part. Reasons for evacuation Evacuations may be carried out before, during, or after disasters such as: * Natural disasters ** Eruptions of volcanoes ** Tropical cyclones ** Floods ** Earthquakes ** Tsunamis ** Wildfires/Bushfires * Industrial accidents ** Chemical spill ** Nuclear accident * Transport ** Road accidents ** Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Spark
An electric spark is an abrupt electrical discharge that occurs when a sufficiently high electric field creates an ionized, electrically conductive channel through a normally-insulating medium, often air or other gases or gas mixtures. Michael Faraday described this phenomenon as "the beautiful flash of light attending the discharge of common electricity". The rapid transition from a non-conducting to a conductive state produces a brief emission of light and a sharp crack or snapping sound. A spark is created when the applied electric field exceeds the dielectric breakdown strength of the intervening medium. For air, the breakdown strength is about 30 kV/cm at sea level. Experimentally, this figure tends to differ depending upon humidity, atmospheric pressure, shape of electrodes (needle and ground-plane, hemispherical etc.) and the corresponding spacing between them and even the type of waveform, whether sinusoidal or cosine-rectangular. At the beginning stages, free electrons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outlet Challenge , a defunct retail and broadcasting company
{{disambig ...
Outlet may refer to: * ''Outlet'' (Antigua newspaper) * "Outlet" (song), by the American rapper Designer * Outlet, Ontario, a community in Canada * Outlet, a connection method used in the Objective-C programming language and environments derived from it * Outlet, a river that runs out of a lake * Electrical outlet * Outlet store or outlet mall * Pelvic outlet * The Outlet Company The Outlet Company was a corporation based in Providence, Rhode Island, which owned holdings in both retail and broadcasting. The centerpieces of the group was its flagship Providence store (''The Outlet'') and WJAR radio and television, also in P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Phenomenon
An Internet meme, commonly known simply as a meme ( ), is an idea, behavior, style, or image that is spread via the Internet, often through social media platforms. What is considered a meme may vary across different communities on the Internet and is subject to change over time. Traditionally, the term mostly applied to images, concepts, or catchphrases, but it has since become broader and more multi-faceted, evolving to include more elaborate structures such as challenges, GIFs, videos, and viral sensations. The retronym derives from the earlier concept of a meme as any cultural idea, behavior or style that propagates through imitation. Internet memes are considered a part of Internet culture. They can spread from person to person via social networks, blogs, email, or news sources. Instant communication on the Internet facilitates word of mouth transmission, resulting in fads and sensations that tend to grow rapidly. For example, posting a photo of someone planking online b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
