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ISO 12759-2:2019

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

Mar 20, 2019

General information

90.92     Apr 30, 2025

ISO

ISO/TC 117

International Standard

23.120  

English   French  

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Published

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 12759-2:2019
90.92 Standard to be revised
Apr 30, 2025

REVISED BY

PROJECT
ISO/AWI 12759-2

National adoptions

delSRPS EN ISO 12759-2:2017  
ISS

Fans - Efficiency classification for fans - Part 2: Standard losses for drive components (ISO/FDIS 12759-2:2018)

50.98   Project deleted

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