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024 7 $a10.1109/IEEESTD.1981.7431909
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101 0 $aeng
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181   $ctxt$2rdacontent
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200 10$aANSI/IEEE Std 620-1981 (Issued April 1981 for trail use) $eIEEE Trial Use Guide for Construction and Interpretation of Thermal Limit Curves for Squirrel-Cage Motors Over 500 hp /$fInstitute of Electrical and Electronics Engineers
210  1$aPiscataway, NJ, USA :$cIEEE,$d1981.
215   $a1 online resource (8 pages)
330   $aThis guide defines thermal limit curves, recommends a standard procedure for construction of the curves, and provides the definitions and information necessary to properly use these curves. The guide also describes thermal limit curves for large squirrel-cage motors defined as those motor ratings built in frames larger than the frame normally used for 500 hp, 1800 r/min motors.
517   $aANSI/IEEE Std 620-1981 
606   $aInsulation (Heat)
606   $aHeat engineering$xStandards
615  0$aInsulation (Heat)
615  0$aHeat engineering$xStandards.
676   $a621.46
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