m ISO 12759-2:2019 - Standards Store - Ministry of Industry, Commerce & Tourism - Kingdom of Bahrain

ISO 12759-2:2019

International Standard   Current Edition

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

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.

Prepare
20 March 2019

Files

English 21 Pages
Current Edition
46.41 BHD
 

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