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Establishment of Industrial Standard TIS to be replaced in Thailand

Posted by: Charlotte Pemberton-Bennetts Date: 30 May 2023

Regulatory Update: Establishment of Industrial Standard TIS 866-30(101) in Thailand.

On 11 January 2023, the Thai Ministry of Industry announced the establishment of Industrial Standard TIS 866 Part 30(101)-2561(2018) on Rotating Electrical Machines, replacing existing Standard TIS 867-2550.
The Standard applies to AC three phase induction motors for single speed electrical motors that are rated for operation on sinusoidal voltage supply and:
have a rated power PN from 0.12 kW to 375 kW;
have a rated voltage UN above 50 V up to 1 kV;
have 2, 4, 6 or 8 poles;
are capable of continuous operation at their rated power with a temperature rise within the specified insulation temperature class;
are marked with ambient temperature within the range of –20 °C to + 60 °C;
re marked with an altitude up to 4 000 m above sea level.

Motors with flanges, feet and/or shafts with mechanical dimensions different from IEC 60072-1 are covered by this standard. Geared motors are covered by this standard including those incorporating non-standard shafts and flanges.
The following products are not in scope of the Standard: 
Synchronous motors or permanent magnet motors;
Single-phase electric motors;
Motors with 10 or more poles;
Multi-speed motors;
Motors with mechanical commutators (e.g. DC motors);
Motors completely integrated into a machine (for example pump, fan and compressor), etc.;
Motors with integrated frequency-converters (compact drives) when the motor cannot be tested separately from the converter;
Brake motors when the brake is an integral part of the inner motor construction and can neither be removed nor supplied by a separate power source during the testing of motor efficiency;
Submersible motors specifically designed to operate wholly immersed in a liquid;

This standard came into force on 11th May 2023.

The publication can be found in the Thai Government Gazette No. 140 here.

If you have any questions, or would like any further information, please reach out to us at [email protected]

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