ISO 12759-2:2019 Preview

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

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.


General information

  • Status :  Published
    Publication date : 2019-03
  • Edition : 1
    Number of pages : 21
  • :
    ISO/TC 117
    Fans
  • 23.120
    Ventilators. Fans. Air-conditioners

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