NF ISO 12759-2

NF ISO 12759-2

November 2021
Standard Current

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.

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Main informations

Collections

National standards and national normative documents

Publication date

November 2021

Number of pages

29 p.

Reference

NF ISO 12759-2

ICS Codes

23.120   Ventilators. Fans. Air-conditioners

Classification index

E51-101-2

Print number

1

International kinship

ISO 12759-2:2019
Sumary
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.

Replaced standards (1)
NF EN ISO 12759
October 2015
Standard Cancelled
Fans - Efficiency classification for fans

<p>ISO 12759:2010 specifies requirements for classification of fan efficiency for all fan types driven by motors with an electrical input power range from 0,125 kW to 500 kW. It is applicable to (bare shaft and driven) fans, as well as fans integrated into products. Fans integrated into products are measured as stand-alone fans.</p> <p>It is not applicable to fans for smoke and emergency smoke extraction; fans for industrial processes; fans for automotive application, trains, planes, etc.; fans for potentially explosive atmospheres; box fans, powered roof ventilators and air curtains or jet fans for use in car parks and tunnel ventilation.</p>

Table of contents
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  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes, définitions et symboles
  • 4 Calculs de performance du système de ventilation
  • 5 Consignation des résultats
  • Annexe E (normative) Constantes du rendement de la puissance en chevaux d'un moteur à induction polyphasé lorsqu'il est alimenté par un EFV
  • Annexe F (normative) Constante du rendement de la puissance en kilowatts d'un moteur à induction polyphasé lorsqu'il est alimenté par un EFV
  • Annexe G (normative) Constantes du rendement nominal de la puissance en chevaux d'un EFV
  • Annexe H (normative) Constantes du rendement nominal d'un EFV en kilowatt
  • Annexe I (normative) Constantes du rendement d'un moteur à induction polyphasé (DOL, moteur de puissance en hp)
  • Annexe J (normative) Constantes du rendement d'un moteur à induction polyphasé (DOL, moteur de puissance en kW)
  • Annexe A (informative) Pertes de puissance du système de ventilation
  • Annexe B (informative) Loi américaine Energy policy et conservation act (EPCA) Rendement nominal d'un moteur (moteurs 60 Hz)
  • Annexe C (informative) IEC 60034-30-1 rendement nominal d'un moteur à 50 Hz
  • Annexe D (informative) Rendement nominal du moteur conformément à la Référence [ 7 ] pour la Chine
  • Bibliographie
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