| X Close | ||
|
| ||
|
power cord In the 19th century and early 20th century, electrical cable was often insulated using cloth, rubber and paper. Plastic materials are generally used today, except for high reliability power cables. Power cord Manufacturer Each receptacle has two or three wired contacts. The contacts may be steel or brass, and may be plated with zinc, tin, or nickel. The live contact carries current from the source to the load. The neutral returns current to the source. Many receptacles and plugs also include a third contact for a connection to earth ground, intended to protect against insulation failure of the connected device. AC power cord Cables can be securely fastened and organized, such as by using cable trees with the aid of cable ties or cable lacing. Continuous-flex or flexible cables used in moving applications within cable carriers can be secured using strain relief devices or cable ties. Copper corrodes easily and so should be layered with Lacquer. At high frequencies, current tends to run along the surface of the conductor and avoid the core. This is known as the skin effect. It may change the relative desirability of solid versus stranded wires. european power cord The C7 and C8 connectors, with two pins rated at 2.5 A, exist in both polarised and unpolarised versions. The unpolarised C7 is commonly known as a "Figure 8" or "shotgun" connector due to its shape. The polarised C7 is asymmetrical, with one end rounded similarly to the unpolarised version, and the other squared off. power cord set The first power distribution system developed by Thomas Edison in 1882 in New York City used copper rods, wrapped in jute and placed in rigid pipes filled with a bituminous compound.[1] Although vulcanized rubber had been patented by Charles Goodyear in 1844, it was not applied to cable insulation until the 1880s, when it was used for lighting circuits.[2] Rubber-insulated cable was used for 11,000 volt circuits in 1897 installed for the Niagara Falls power project. VDE power cord C19 and C20 connectors, with pins rated at 16 A, are used for some IT applications where higher currents are required, for instance, on high-power workstations and servers, UPSs, PDUs and similar equipment. They are similar to C13 and C14 connectors, but rectangular (without chamfered corners) and with slightly larger pins, rotated so they are parallel to the long axis of the connector. UL power cords A cable is two or more wires or ropes running side by side and bonded, twisted or braided together to form a single assembly. In mechanics, cables are used for lifting and hauling; in electricity they are used to carry electrical currents. An optical cable contains one or more optical fibers in a protective jacket that supports the fibers. Mechanical cable is more specifically called wire rope. SAA power cord Any current-carrying conductor, including a cable, radiates an electromagnetic field. Likewise, any conductor or cable will pick up energy from any existing electromagnetic field around it. These effects are often undesirable, in the first case amounting to unwanted transmission of energy which may adversely affect nearby equipment or other parts of the same piece of equipment; and in the second case, unwanted pickup of noise which may mask the desired signal being carried by the cable, or, if the cable is carrying power-supply or control voltages, pollute them to such an extent as to cause equipment malfunction. australian power cord Worldwide, more than a dozen different types of connectors are used for fixed building wiring. Products sold in many different markets can use a standardized IEC connector and then use a detachable power cord to match the local electrical outlets. This simplifies safety approvals, factory testing, and production since the power cord is a low-cost item available as a commodity. Note that the same types of appliance-side connectors are used with both 110 V and 230 V power cables, so care must be used when moving appliances between countries with different voltage standards — substituting a power cord that matches local power outlets will result in an incorrect voltage being applied to the appliance or equipment. Some devices have a slide-switch to adapt to different voltages, or wide-ranging power supplies. Unless explicitly labelled as capable of handling local voltages, this is very likely to damage or destroy the appliance. Australia power cord In the 19th century and early 20th century, electrical cable was often insulated using cloth, rubber and paper. Plastic materials are generally used today, except for high reliability power cables. australia plugs 3-conductor 10 A. Most desktop personal computers use the ten-amp panel-mounting C14 inlet to attach the power cord to the power supply, as do many monitors, printers and other peripherals. Many AT form factor computers also provided a panel-mounting C13 outlet controlled by the physical power switch for powering the monitor. With the arrival of ATX the readily accessible permanent power switch was removed and the outlet was either permanently powered or completely removed. brazil plug Electric cables discussed here are mainly meant for installation in buildings and industrial sites. For power transmission at distances from some km's to 600 km see high voltage cable, power cables and HVDC. Argentina power cord For a musical note played on an electric guitar see Power chord A power cord, line cord, or mains cable is a cord or cable that temporarily connects an electrical appliance to the distribution circuits of an electrical power source via a wall socket or extension cord. electric extension cord Electric cables discussed here are mainly meant for installation in buildings and industrial sites. For power transmission at distances from some km's to 600 km see high voltage cable, power cables and HVDC. power extension cord AC power plugs and sockets are devices for removably connecting electrically-operated devices to the commercial power supply. An electric plug is a male electrical connector with contact prongs to connect mechanically and electrically to slots in the matching female socket. Wall sockets (sometimes also known as power points,[1][2] power sockets, electric receptacles, or electrical outlets) are female electrical connectors that have slots or holes which accept and deliver current to the prongs of inserted plugs. To reduce the risk of injury or death by electric shock, some plug and socket systems incorporate various safety features. Sockets are designed to accept only matching plugs and reject all others. ac extension cord IEC connector is the common name for the set of thirteen mains electricity cable mount female connectors (called the connector in the specification) and thirteen panel mount male connector (called the inlet) defined by International Electrotechnical Commission (IEC) specification IEC 60320 (formerly IEC 320). When used with no other qualifiers, "IEC connector" usually refers specifically to the C13 and C14 connectors. Some types also come in cable mount male and panel female versions to use as outlets but these are less common. extension cord wire The C7 and C8 connectors, with two pins rated at 2.5 A, exist in both polarised and unpolarised versions. The unpolarised C7 is commonly known as a "Figure 8" or "shotgun" connector due to its shape. The polarised C7 is asymmetrical, with one end rounded similarly to the unpolarised version, and the other squared off. electrical extension cord 3-conductor 10 A. Most desktop personal computers use the ten-amp panel-mounting C14 inlet to attach the power cord to the power supply, as do many monitors, printers and other peripherals. Many AT form factor computers also provided a panel-mounting C13 outlet controlled by the physical power switch for powering the monitor. With the arrival of ATX the readily accessible permanent power switch was removed and the outlet was either permanently powered or completely removed. iec power cords Electrical cables may be made more flexible by stranding the wires. In this process, smaller individual wires are twisted or braided together to produce larger wires that are more flexible than solid wires of similar size. Bunching small wires before concentric stranding adds the most flexibility. Copper wires in a cable may be bare, or they may be coated with a thin layer of another material: most often tin but sometimes gold, silver or some other material. Tin, gold, and silver are much less prone to oxidisation than copper, which may lengthen wire life, and makes soldering easier. Tight lays during stranding makes the cable extensible (CBA - as in telephone handset cords). IEC power cord C19 and C20 connectors, with pins rated at 16 A, are used for some IT applications where higher currents are required, for instance, on high-power workstations and servers, UPSs, PDUs and similar equipment. They are similar to C13 and C14 connectors, but rectangular (without chamfered corners) and with slightly larger pins, rotated so they are parallel to the long axis of the connector. iec power plug Some extension cords also incorporate safety features, such as a polarized plug and receptacle, grounded terminals, a 'power-on' indicator, a fusible link, or even a residual-current device (also known as a ground-fault circuit interrupter or GFCI). Israel power cord Mass-impregnated paper-insulated medium voltage cables were commercially practical by 1895. During World War II several varieties of synthetic rubber and polyethylene insulation were applied to cables israel plugs Extension cords come in various lengths and thicknesses, and service duties. In general, the more power needed by the appliance, the thicker the cord should be (that is, larger wires inside). Cords to be used outdoors, in wet areas, around oils, or exposed to sunlight for long periods should be selected for such specific service. japanese power cord Yellow NEMA 5-15 Extension CordIn the USA where the domestic voltage is 120 V, the National Electrical Code (NEC) prohibits the use of extension cords in a 20 A circuit unless they are of 16 AWG or larger (for example, 14 AWG or 12 AWG). As with other flexible cords, the NEC also prohibits their use where attached to building surfaces, or concealed inside walls, floors, or ceilings, above suspended ceilings, or where run through holes or other openings (windows, doors) in structures (with limited exceptions). Cords run across the floor should be covered with a suitable device to protect them from physical damage. Japan power cord The family includes two and three-conductor connectors of various current capacities and temperature ratings, all designed specifically for the purpose of attaching a mains power cord to a piece of equipment. Allowing an interchangeable mains power cord makes it very easy for equipment manufacturers to sell their equipment anywhere in the world as long as their equipment can operate on both 120/240 volt, 50/60 Hz mains power. However users must still check voltage when moving equipment between regions as not all equipment with these connectors is multi-voltage and some equipment that is requires manual switching between voltage ranges. korean power cord The use of the terms "plug" and "socket" when referring to these connectors is ambiguous. Some use the term plug as a synonym for male and socket as a synonym for female. Others use the term plug for the cable connector and socket for the panel mount connector. For inlet connections where the male connector is on the device and the female connector is on the cable these two definitions are opposite. korea power plugs Some extension cords also incorporate safety features, such as a polarized plug and receptacle, grounded terminals, a 'power-on' indicator, a fusible link, or even a residual-current device (also known as a ground-fault circuit interrupter or GFCI). ac ul power cordThe terms are generally used for cables using a power plug to connect to a single-phase alternating current power source at the local line voltage—(generally 100 to 240 volts, depending on the location). The terms power cable, mains lead or flex are also used. A lamp cord is a light weight ungrounded two wire cord used for small loads such as a table or floor lamp. The term cord set is also used to distinguish those cords that include connectors molded to the cord at each end. UL plug Worldwide, more than a dozen different types of connectors are used for fixed building wiring. Products sold in many different markets can use a standardized IEC connector and then use a detachable power cord to match the local electrical outlets. This simplifies safety approvals, factory testing, and production since the power cord is a low-cost item available as a commodity. Note that the same types of appliance-side connectors are used with both 110 V and 230 V power cables, so care must be used when moving appliances between countries with different voltage standards — substituting a power cord that matches local power outlets will result in an incorrect voltage being applied to the appliance or equipment. Some devices have a slide-switch to adapt to different voltages, or wide-ranging power supplies. Unless explicitly labelled as capable of handling local voltages, this is very likely to damage or destroy the appliance. swiss power cord In the 19th century and early 20th century, electrical cable was often insulated using cloth, rubber and paper. Plastic materials are generally used today, except for high reliability power cables. italy power cord Any current-carrying conductor, including a cable, radiates an electromagnetic field. Likewise, any conductor or cable will pick up energy from any existing electromagnetic field around it. These effects are often undesirable, in the first case amounting to unwanted transmission of energy which may adversely affect nearby equipment or other parts of the same piece of equipment; and in the second case, unwanted pickup of noise which may mask the desired signal being carried by the cable, or, if the cable is carrying power-supply or control voltages, pollute them to such an extent as to cause equipment malfunction. Denmark power cord Mass-impregnated paper-insulated medium voltage cables were commercially practical by 1895. During World War II several varieties of synthetic rubber and polyethylene insulation were applied to cables uk power cords Mass-impregnated paper-insulated medium voltage cables were commercially practical by 1895. During World War II several varieties of synthetic rubber and polyethylene insulation were applied to cables british power cord AC power plugs and sockets are devices for removably connecting electrically-operated devices to the commercial power supply. An electric plug is a male electrical connector with contact prongs to connect mechanically and electrically to slots in the matching female socket. Wall sockets (sometimes also known as power points,[1][2] power sockets, electric receptacles, or electrical outlets) are female electrical connectors that have slots or holes which accept and deliver current to the prongs of inserted plugs. To reduce the risk of injury or death by electric shock, some plug and socket systems incorporate various safety features. Sockets are designed to accept only matching plugs and reject all others. Iiec power cords Ropes made of multiple strands of natural fibers such as hemp, sisal, manila, and cotton have been used for millennia for hoisting and hauling. By the 19th century, deepening of mines and construction of large ships increased demand for stronger cables. Invention of improved steelmaking techniques made high quality steel available at lower cost, and so wire ropes became common in mining and other industrial applications. By the middle of the 19th century, manufacture of large submarine telegraph cables was done using machiners similar to that used for manufacture of mechanical cables. iec power plugs Electric cables discussed here are mainly meant for installation in buildings and industrial sites. For power transmission at distances from some km's to 600 km see high voltage cable, power cables and HVDC. iec power socket Each receptacle has two or three wired contacts. The contacts may be steel or brass, and may be plated with zinc, tin, or nickel. The live contact carries current from the source to the load. The neutral returns current to the source. Many receptacles and plugs also include a third contact for a connection to earth ground, intended to protect against insulation failure of the connected device.IEC power cord iec power cords electrical extension cord electric extension cord UL power cords brazil plug iec power plugs israel plugs Powered by 宁波网络公司,google排名,China SEO |
|
لينک ثابت |
