International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 72

Automatic electrical controls

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 72WG 3 Albert van der KuifPPUB2014-052021

History

Stage
Document
Downloads
Decision Date
Target Date
PNW
72/878/NP PDF file 248 kB
2012-09-21 
ANW
72/898/RVN PDF file 113 kB
2013-01-112013-02
CCDV
72/879/CDV
PDF file 415 kB
2013-01-12 
AFDIS
72/918/RVC Word file 293 kB
PDF file 159 kB
2013-07-052013-05
AFDIS
72/918A/RVC Word file 295 kB
PDF file 160 kB
2013-07-052013-05
DECFDIS
2013-12-172013-11
RFDIS
2014-01-072014-01
CFDIS
72/941/FDIS

2014-02-142014-03
APUB
72/950/RVD PDF file 27 kB
2014-04-222014-04
BPUB
2014-04-232014-05
PPUB
2014-05-132014-06
  

Abstract

IEC 60730-2-22:2014 applies to the partial evaluation of thermal motor protectors as defined in IEC 60730-1 for household and similar use, including heating, air conditioning and similar applications as well as for sealed (hermetic and semi-hermetic type) motor-compressors. A thermal motor protector is considered an integrated control since its protective functionality is dependent on the correct mounting and fixing in or on a motor and which can only be fully tested in combination with the relevant motor. This dependency is illustrated by:
- the ability of the thermal motor protector to accurately and reliably sense the heat of the motor windings;
- thus, addressing the over-temperature protection due to motor overload conditions;
- the ability of the thermal motor protector to accurately and reliably sense the current due to motor locked-rotor conditions;
- thus, reducing the response time and not being adversely affected by heat-sink at the assembly spot in the application and the influence of the motor's electromagnetic field on the switch behaviour of the thermal motor protector;
- particularly, affecting the arc direction between the contacts resulting in uneven wear of the contact material and eventually leading to failure of operation. Requirements concerning the testing of the combination of sealed (hermetic and semi-hermetic type) motor-compressors and thermal motor protectors are given in IEC 60335-2-34. This standard applies to thermal motor protectors using NTC or PTC thermistors, additional requirements for which are contained in Annex J. Key words: Thermal, Motor protectors, Integrated control

This publication is to be read in conjunction with IEC 60730-1:2010.

Project

IEC 60730-2-22:2014 ED1

Automatic electrical controls - Part 2-22: Particular requirements for thermal motor protectors

 

 

Associated Documents:

72/1181/DL

PDF file 132 kB
72/1029/RM

PDF file 157 kB