IEC Standards

This section of IEC 60034 addresses the impact of unbalanced voltages on the operation of three-phase cage induction motors.

IEC 60034-12:2007 specifies the parameters for four designs of starting performance for single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034-1. These specifications include: A rated voltage up to 1,000 V; Designed for direct-on-line or star-delta starting; Rated based on duty type S1; Constructed to any degree of protection.

This section of IEC 60034 outlines the requirements for the use of thermal protectors and thermal detectors that are integrated into the stator windings or positioned appropriately within induction machines. These devices are intended to safeguard the machines from significant damage caused by thermal overloads. This standard is applicable to machines produced in accordance with

Section of IEC 60034: Establishes testing procedures for assessing the sound power level of rotating electrical machines. Defines the maximum A-weighted sound power levels for the factory acceptance testing of rotating electrical machines supplied via the network, as per IEC 60034-1. These machines are to comply with cooling methods as specified in IEC 60034-6 and

This section of IEC 60034: Outlines testing methods for determining the sound power levels of rotating electrical machines. Specifies the maximum A-weighted sound power levels for factory acceptance testing of network-supplied rotating electrical machines, in accordance with IEC 60034-1, featuring cooling methods as per IEC 60034-6 and protection levels according to IEC 60034-5. These machines

This section of IEC 60034 outlines the IM Code, which is a classification system for the construction types, mounting configurations, and terminal box placement of rotating electrical machines. The standard presents two classification systems as follows: Code I (refer to Section 2): This is an alphanumeric designation intended for machines equipped with end-shield bearings and

The present International Standard is intended for the categorization of the levels of protection offered by enclosures for rotating electrical machines. It establishes the criteria for protective enclosures that are otherwise appropriate for their intended application and that, from a material and craftsmanship standpoint, guarantee the retention of the properties addressed in this standard under

Section of IEC 60027 pertains to rotating electrical machines. It provides nomenclature and corresponding symbols for various quantities and their respective units.