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The Engineering Toolbar
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The International Electrotechnical Commission (IEC) is the authoritative worldwide body responsible for developing consensus global standards in the electrotechnical field. IEC is dedicated to the harmonization and voluntary adoption of these standards, supporting the transfer of electrotechnology, assisting certification and promoting international trade. Since 1906, IEC has served the world's electrical industry, developing international standards to promote quality, safety, performance, reproducibility, and environmental compatibility of materials, products, and systems. It has also published standards for the electronics and telecommunications industries. The IEC's present membership of 51 countries includes most major trading nations. International Electrotechnical Commission standards are widely adopted as the basis of national or regional electrotechnical standards, and are often quoted in manufacturers' specifications and by users when calling for tenders. Over 2000 standards cover virtually every topic of electrotechnology from acoustics, to medical devices, to insulating materials, to aircraft, to nuclear instruments. The IEC's membership consists of the electrotechnical standards organizations from each participating nation. The American National Standards Institute (ANSI) represents the United States. Products & Services
Resistors and potentiometers are passive electronic components that oppose the flow of either alternating current (AC) or direct current (DC).
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Potentiometers, rheostats and trimmers are three-terminal resistors that are used to measure or divide voltages, and to protect or control circuits.
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Signal transformers transfer information from one circuit to another by electromagnetic induction. They are used to increase or decrease the voltage from one side of a power transformer to the other.
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Power transformers convert power-level voltages from one level or phase configuration to another. They can include features for electrical isolation, power distribution, and control and instrumentation applications.
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AC power connectors transfer alternating current through a variety of electronic devices. AC power connectors include simple AC inlets, outlets, and power entry modules.
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Learn more about AC Power Connectors
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Topics of Interest
WATER SOFTENING
Introduction
Water chemistry is a very complex and specialized subject. This short section touches on some aspects of water softening and water stabilization, and is no more than...
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Ion exchange is used in two distinct filtration processes. The first is water softening. In this process, ions are removed from the water and replacing them with sodium ions and chloride ions. Ion...
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ION EXCHANGE
Ion exchange involves removing unwanted ions from water and replacing them with other ions, changing the composition of the water. This is done by passing water through a bed of...
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A chemical common to nearly all aqueous cleaning processes is water (H2O). It is used to prepare most aqueous cleaning solutions, but most importantly, it is used as a rinse medium to remove soils...
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Originally the hardness of water was defined as the capacity of water for destroying the lather of soap. The hardness was determined by a titration with a standard soap solution. Metal ions including...
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