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ASBSM4-LED3 датащи(PDF) 143 Page - Lumberg |
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ASBSM4-LED3 датащи(HTML) 143 Page - Lumberg |
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143 / 178 page ![]() www.lumberg-automationusa.com 1-717-217-2299 143 A Abrasion Resistance The ability of wire or cable to resist wear and tear to the surface. AC (Alternating Current) See Alternating Current. ACR (Attenuation Cross Talk Ratio) Attenuation Cross Talk Ratio – the difference between attenuation and cross talk measured in decibel at a given frequency. AF (Audio Frequency) AM (Amplitude Modulation) Alternating Current (AC or a.c.) Electrical current, which changes magnitude and direction in a regular periodic way and is often described by the formula I(t) = I 0 sin (wt + Ø), where I 0 is the peak value or amplitude of the current, I 0 is the angular frequency, Ø is the phase constant and (wt + Ø) is called the phase of the current. American Society for Testing and Materials See ASTM. Ambient Temperature The temperature of a medium (gas or liquid) surrounding an object. American Wire Gauge (AWG) The U.S. standard system to specify size of electrical wiring. AMP (A) (Ampere) A unit of measure for electrical current. Ampere (A) The unit of current. One ampere is the current flowing through one ohm of resistance at one volt potential. Amplitude Modulation (AM) ANSI (American National Standards Institute) Appliance Wiring Material (AWM). UL designation for cable intended for use in the appliance wiring industry. Armored Cable A cable provided with a wrapping of metal providing for mechanical protection. ASTM (American Society for Testing and Materials) Acronym for American Society for Testing and Materials – a standards organization, which suggests test methods, definitions or practices. Audio Frequency (AF) – 20 – 20,000 cycles per second AUTO Automotive Industry Wiring Color Code for conductors. AWG (American Wire Gauge) A numerical standard used to refer to the diameter cross-sectional area of a wire. Smaller numbers refer to larger cross sectional areas. Is sometimes referred to as the Brown and Sharpe (B&S) wire gauge. B Binder A spirally wrapped tape or thread used for holding assembled cable components in place awaiting subsequent manufacturing operations. BNC (Bayonet Neil Concelman) A coaxial connector used exclusively in video and RF applications. Braid A metal mesh or screen material, usually copper, which is used in a cable to shield against electrical interference and reinforces the cable jacket against damage. Bridge Rectifier An electrical device made up of four diodes, performing the function of full wave rectification (converts the full AC sine wave to DC). C Cable Either a stranded conductor with or without insulation and other coverings (single conductor cable), or a combination of conductors insulated from one another (multiple conductor cable). Capacitor An electronic device, which can be used to store an electric charge or to allow alternating current to flow. The ideal capacitor will not allow steady state or DC current to flow. The capacitor is used in many applications such as transient suppression, electrical noise filtering, timing circuits, etc. CATV (Community Antenna Television) CCTV (Closed Circuit Television) CEC (Canadian Electrical Code) Canadian version of USNEC. Color Code Used to identify wires or circuits by color, utilizing solid colors, tracers, braids, and other surface printing. Conductivity The ability of a material to allow electrons to flow, measured by the current per unit of voltage applied. It is the reciprocal of resistivity. Conductor A material that can easily conduct the flow of electrical current. Metals are considered to be good conductors for carrying electrical current. Connector A device used to provide rapid connect or disconnect for electrical cable and wire terminations. Connector Insert Insulating device that holds the contacts in their proper location. Contact The parts of a connector that carries the electrical current through the circuit. Contact Holder Insulating device that holds the contacts in their proper position. Control Cable A term sometimes used to describe the cable that runs between the PLC and a distribution box (Lumberg ASB or ZV product). Cord A small and flexible insulated cable. CPE (Chlorinated Polyethylene) A flexible synthetic rubber material with high tear strength and provides good resistance to most inorganic chemicals. It is inherently difficult to ignite. CPU (Central Processing Unit) Creepage Refers to the conduction of electricity across the surface of a dielectric. Crimp Termination A connection, in which a metal sleeve is secured to a conductor by mechanically crimping the sleeve with pliers, presses or automated crimping machines. CRT (Cathode Ray Tube) CSA (Canadian Standards Association) The Canadian equivalent to the Underwriters Laboratories organization. References Glossary of Terms References |
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