L5_ECE4001_Fall_2008 - Lecture 5 Standards, Sustainability...

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J. Stevenson Kenney (c) 2008 1 Lecture 5 Standards, Sustainability and Environmental Issues September 2, 2008
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J. Stevenson Kenney (c) 2008 2 Performance vs. Design Standards What is the difference between a performance standard and a design standard? All cars shall get at least 30 mpg All cars shall have seat belts Most government standards are design standards Why?
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J. Stevenson Kenney (c) 2008 3 Voluntary vs. Mandatory Standards Voluntary standards are usually adopted by manufacturers or suppliers (Consensus Standards) Video tape formats Windows operating system standards
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J. Stevenson Kenney (c) 2008 4 Voluntary Standards Some private sector organizations that issue consensus standards National Electrical Manufacturer’s Association (NEMA) American Society of Mechanical Engineers (ASME) Institute of Electrical and Electronic Engineers (IEEE) (ANSI) The American National Standards Institute coordinates most voluntary standards in the US. It is a private, non-profit organization
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J. Stevenson Kenney (c) 2008 5 ANSI Standards (http://www.ansi.org/) ANSI = American National Standards Institute Founded in 1918 Coordinates the development and use of voluntary consensus standards in the US Represents the needs and vies of US stakeholders in standardization forums around the globe Aims to enhance global competitiveness of US businesses Aims to enhance US quality of life Activities include facilitating voluntary consensus standards conformity assessment systems to safeguard their integrity
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J. Stevenson Kenney (c) 2008 6 NEMA Standards (http://www.nema.org/) A standard of the National Electrical Manufacturers Association defines a product, process, or procedure with reference to one or more of the following: Nomenclature, Composition, Construction, Dimensions, Tolerances, Safety Operating characteristics, Performance Ratings, Testing, Designated Service
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J. Stevenson Kenney (c) 2008 7 IEEE Standards http://standards.ieee.org/ • Coordinated with ANSI, ETSI and other standards organizations ( e.g. IEEE/ANSI N42) • IEEE 802.xx standards are most cited and concentrate on telecommunications • IEEE 1666 standards concentration on software • Some standards are coordinated with IEEE Societies
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J. Stevenson Kenney (c) 2008 8 UL Standards (http://www.ul.com/) UL was established in 1903 US has developed more than 800 standards for Safety Millions of products and their components are tested for UL’s safety standards Products are marked with “UL” if they are in compliance
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J. Stevenson Kenney (c) 2008 9 CSA Standards (http://www.csa.ca/) The Canadian Standards Association was chartered in 1919 The goal is to develop standards for Canadians CSA participates in international groups and forums to create standards aimed at enhancing trade and promoting safety CSA policy is to harmonize with the US CSA works with the IEEE to ensure products are designed to improve electrical safety
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J. Stevenson Kenney (c) 2008
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This note was uploaded on 02/20/2010 for the course ECE 4001 taught by Professor Frazier during the Spring '09 term at Georgia Institute of Technology.

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L5_ECE4001_Fall_2008 - Lecture 5 Standards, Sustainability...

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