标准摘要
[中文适用范围]： 本文件建立了一个对标称额定功率 0.125 kW 及以上电机驱动的所有风扇类型的风扇效率进行分类的系统。 它仅适用于驱动风扇，但不适用于可能安装驱动风扇的系统（原始设备制造商的成品，例如箱式风扇和屋顶风扇或通风系统）。 本文档描述了对风扇效率进行分类或应用最低效率限制 (MEL) 的多种不同程序。 这些程序在： ——本文件（ISO 12759-4）中进行了描述；没有描述比较这些分类和 MEL 的方法。 [外文原描述]： This document establishes a system for the classification of fan efficiency for all fan types driven by motors of nominal rating 0,125 kW and above. It applies to driven fans only, but not to the system (finished original equipment manufacturer's product, for example box fans and roof fans or ventilation system) in which they might be installed. This document describes a number of different procedures to classify the efficiency of a fan or to apply a minimum efficiency limit (MEL). Those procedures are described in: — ISO 12759-3; — this document (ISO 12759-4); — ISO 12759-5; — ISO 12759-6. There is no method described to compare these classifications and MEL's.
英文名称Fans — Efficiency classification for fans — Part 4: Driven fans at maximum operating speed