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ISO 12759-2:2019

ISO 12759-2:2019

$36.40

Fans — Efficiency classification for fans — Part 2: Standard losses for drive components

Published By Publication Date Number of Pages
ISO 2019-03 28
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This document establishes a classification for fan efficiency. It applies to all electric-motor-driven fan systems that utilize a specific combination of components as defined below:

a) fan airflow performance determined in accordance with an accepted performance standard;

b) polyphase induction motors with nominal motor efficiency specified in this document;

NOTE 1 Other types of motors are explicitly excluded.

c) pulse-width modulated variable frequency drives (VFDs) for use with single motors;

NOTE 2 Single VFDs that service multiple, parallel fan motors are excluded.

d) mechanical power transmissions that utilize V-belts, flat belts, cog belts or couplings.

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ISO 12759-2:2019
$36.40