IEC Impulse tests on cables and their accessories. 1. Related Test Report Forms. No publication found. Withdrawn/Replaced. IEC The voltages pertaining to the system on which cables and accessories are to be used are given in IEC or in the relevant product standard. Buy IEC Ed. Impulse tests on cables and their accessories from SAI Global.
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Unlike IEC connectors, they are not coded for voltage; users must ensure that the voltage rating of the equipment is compatible with the mains supply.
Appliance couplers enable the use of standard inlets and country-specific cord sets which allow manufacturers to produce the same appliance for many markets, where only the cord set has to be changed for a particular market.
Interconnection couplers allow a power supply from a piece of equipment or an appliance to be made available to other equipment or appliances.
Couplers described under these standards have standardized current and temperature ratings. Although the terms “male” and “female” are sometimes applied to these connectors, the terms are not used in the standards themselves. Gender references for connectors actually refer only to the contacts, not the complete connectors.
Each type of coupler is identified by a standard sheet number. For appliance couplers this consists of the letter “C” followed by a number, where the standard sheet for the appliance inlet is 1 higher than the sheet for the corresponding cable connector. Many types of coupler also have common names.
Kettle plug is a colloquial term used for the high-temperature C16 appliance inlet and sometimes, wrongly, for the mating C15 connector. Detachable appliance couplers are used in office equipmentmeasuring instrumentsIT environments, and medical devicesamong many types of equipment for worldwide distribution. Each appliance’s power system must be adapted to the different plugs used in different regions. An appliance with a permanently-attached plug for use in one country cannot be readily sold in another which uses an incompatible wall socket; this requires keeping track of variations throughout the product’s life cycle from assembly and testing to shipping and repairs.
Instead, a country-specific power supply cord can be included in the product packagingso that model variations are minimized and factory testing is simplified. A cord which is fitted with non-rewireable usually moulded connectors at both ends is termed a cord set.
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Appliance manufacturing may be simplified by mounting an appliance coupler directly on the printed circuit board. Assembly and handling of an appliance is easier if the power cord can be removed without much effort. Appliances can be used in another country easily, with a simple change of the power supply cord including a connector and a country-specific plug. The power supply cord can be replaced easily if damaged, because it is a standardized part that can be unplugged and re-inserted.
Safety hazards, maintenance expenditure and repairs are minimized. The standards define the mechanical, electrical and thermal requirements and safety goals of power couplers. Further sub-parts of IEC focus on special topics such as protection ratings and appliance specific requirements. Selection of a coupler depends in part on the IEC appliance classes. The shape and dimensions of appliance inlets and connectors are coordinated so that a connector with lower current rating, temperature rating, or polarization cannot be inserted into an appliance inlet that requires higher ratings.
Pin temperature is measured where the pin projects from the engagement surface. The pin temperature is determined by the design of the appliance, and its interior temperature, rather than by its ambient temperature. Typical applications with increased pin temperatures include appliances with heating coils such as ovens or electric grills. It is generally possible to use a connector with a higher rated temperature with a lower rated appliance inlet, but the keying feature of the inlet prevents use of a connector with a lower temperature rating.
Connectors are also classified according to the method of connecting the cord, either as rewirable connectors or non-rewirable connectors. In addition the standards define further general criteria such as withdrawal forces, testing procedures, the minimum number of insertion cycles, and the number of flexings of cords.
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IEC defines a cord set as an “assembly consisting of one cable or cord fitted with one plug and one connector, intended for the connection of an electrical appliance or equipment to the electrical supply”. It also defines an interconnection cord set as an “assembly consisting of one cable or cord fitted with one plug connector and one connector, intended for the interconnection between two electrical appliances”. In addition to the connections within the standards, as mentioned, there are possible combinations between appliance couplers and IEC interconnection couplers.
Fitted with a flexible cord, the components become interconnection cords to be used for connecting appliances or for extending other interconnection cords or power supply cords. In particular, UL will certify:. The dimensions and tolerances for connectors and appliance inlets are given in standard sheets, which are dimensioned drawings showing the features required for safety and interchangeability.
The C1 coupler and C2 inlet were commonly used for mains-powered electric shavers. These have largely been supplanted by cordless shavers with lec batteries or corded shavers which use an AC adapter. This coupler is sometimes colloquially called a cloverleaf coupler or ” Mickey Mouse ” because the cross section looks like the silhouette of the Disney character.
The C6 inlet is used on laptop power supplies and portable projectors, as well as on some desktop computers and recent LCD televisions from LG. Commonly known as a figure-8 or shotgun connector due to the shape of its cross-section, or less commonly, a Telefunken connector  after its originator. A C8B inlet type is defined by the standard, for use by dual-voltage appliances; it has iecc pins, and can hold a C7 connector in either of two positions, allowing the user jec select voltage by choosing the position the connector is inserted.
A similar but polarized connector has been made, but is not part of the standard. Sometimes called C7P, it is asymmetrical, with one side squared off. Unpolarized C7 connectors can be inserted into the polarized inlets; however, doing so might be a safety risk 600230 the iev is designed for polarized power.
Although not specified by IECand not clear if any formal written standard exists, the most common wiring appears to connect the squared side to the neutral, iev the rounded to the hot line.
Apple uses a modified version of this connector, with the receptacle having a proprietary pin that secures the adapter in place and provides grounding. The cabled adapter provides grounding through a slide-in connector, while the angled AC adapter “duckhead” does not provide grounding. Most desktop computers use the C14 inlet to attach the power cord to the power supply, as do many instrument amplifiersmonitors, printers and other peripherals.
A power cord with a suitable power plug for the locality where iecc appliance is being used on one end and a C13 connector connecting to the appliance on the other is commonly called an IEC cord.
IEC cords are used to power many pieces of electronic equipment, including computers, instrument amplifiersprofessional audio equipment and virtually all professional video equipment.
There are also a variety of splitter blocks, splitter cables, and similar devices available. These are usually un-fused with the exception of C13 cords attached to BS plugs, which are always fused. The C13 connector and C14 inlet are commonly found on computers, servers, routers, and switches.
Power cord sets utilizing a C13 connector and a C14 plug are commonplace in data centers to iecc power from a PDU Power Distribution Unit to a server. These data centre power cables are now offered in many colors which can be confusing to people unfamiliar with data centers. Colored power cables are used to isc code installations. For example, an electric kettle cord can be used to power a computer, but an unmodified computer cord cannot be used to power a kettle. A C18 inlet will accept a C13 connector but a C14 inlet will not accept a C17 connector.
The IBM Wheelwriter series of electronic typewriters are one common application. Three wire cords with C13 connectors, which are easier to find, are sometimes used in place of the two wire cords for iiec. In this case, the ground wire will not be connected. This coupler is used for some IT applications where higher currents are required, as for instance, on high-power workstations and servers, uninterruptible power suppliespower distribution unitslarge network routers, switches, blade enclosuresand similar equipment.
This connector can also be found on high current medical equipment. It is rectangular and has pins parallel to the long axis of the coupler face. C3, C4, C11 and C12 standard iev are no longer [ when? Standard jec C25 shows retaining device dimensions. Sheet C26 shows detail dimensions for pillar-type terminals, where the end of the screw bears on a wire directly or through a pressure plate.
Sheet 27 shows details for screw terminals, where the wire is held by wrapping it around the head of a screw. Interconnection couplers are similar to appliance couplers, but the appliance outlet is built into a piece of equipment, while the plug connector is attached to a cord. They 6020 identified 62030 letters, not numbers, with one letter identifying the plug connector, and the alphabetical next letter identifying the mating appliance outlet.
For example, an E plug fits into an F outlet. The dimensions and tolerances kec plug connectors and appliance outlets are given in standard sheets, which are dimensioned drawings showing the features required for safety and interchangeability. Some desktop computers provide both a C14 inlet lower and a type F outlet upper for powering the monitor.
Cables with a C13 connector at one end and a type Irc plug connector ied the other are commonly available.
They have a variety of common uses including connecting power between older PCs and their monitors, extending existing power cords, connecting to type F outlets strips commonly used with rack-mount gear to save space and for international standardization jec connecting computer equipment to the output of a uninterruptible power supply UPS. Type J outlets are used in a similar way. From Wikipedia, the free encyclopedia. For other uses, see IEC connector ic. Uninterruptible power supply with a C14 inlet lower left and four type F outlets right.
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Many small switched-mode power supplies used for laptops. Commonly referred to as a Clover-leaf or Mickey Mouse connector due to its shape. Domestic Audio, video, radio equipment and double insulated power supplies. Commonly referred to as a “figure of 8” in the UK. There is a similar polarized connector having one squared side, see outline belowbut this is not part of the standard. This kind of coupler is used by Roland Corporation for a couple of synthesizer and drum computer models for example: Was also used heavily on Marantz Hifi equipment in the s and s.
Very common on personal computers and peripherals. For use in high temperature settings for example, electric kettle, computer networking closets.