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derating

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derating

[dē′rād·iŋ]
(electronics)
The reduction of the rating of a device to improve reliability or to permit operation at high ambient temperatures.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

derating

The reduction in the normal rating of equipment to account for abnormal environmental conditions to which the equipment may be subject.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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References in periodicals archive
Here the furnaces were tested using the manufacturer's recommended altitude derating schemes, the production (sea level) settings, and several settings in between.
Field testing residential fan-assisted gas-fired furnaces--Part I: effects of altitude on safe operation limits and current de-rating standards
The curves do not have a 10% derating and in fact the external trace chart is not conservative for what it actually represents.
Current and conductors: the answers to all the age-old questions of current carrying capacity in vias, thermals, planes and traces fall into one simple category: power dissipation. (The Limits of Copper)
While derating engine power solves the engine durability problem, it creates one for the customer in terms of reduced performance and productivity.
Operating at high altitude
"The BTCPower S15 Series converters are designed to operate with no air flow in ambient temperatures between -40 and 60 degrees Celsius ambient with no power derating," said James Lau, president of Broadband TelCom Power, Inc.
NEW 15-WATT DC/DC CONVERTER NEEDS NO HEAT SINK
Sound attenuation options have been added for noise sensitive applications and this generation of Cat gen-sets include a large extension box for better cable access, a broad voltage generator that can handle a wider voltage range without derating, and a factory-built and assembled weather proof enclosure.
Cat's New 3412T Gen-Sets
The problems of an oversized heating system can be partially corrected by derating. This refers to adjustments that reduce the rate at which fuel is burned.
Understanding oil and gas heating systems
The filters have an operating ambient temperature rating of -25 to +85[degrees]C with derating above 55[degrees]C.
Compact 6-to 30-A250-V EMC filters
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