T/SZAS 50-2022 Abolished Group standards

T/SZAS 50-2022 Quality grading and "Pioneer" evaluation requirements for direct current motors

Publish Date: 2022-08-01 Implement Date: 2022-08-03 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SZAS 50-2022

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: DC motor

ICS Name: Electric motor

Publish Date: 2022-08-01

Implement Date: 2022-08-03

Scope

Scope: This document specifies the evaluation index system, evaluation methods, and grade classification for the quality and enterprise standard level of DC motors. This document is applicable to the evaluation of the quality and enterprise standard level of DC motors. Relevant institutions can refer to and use it when conducting quality grading and enterprise standard level assessments, evaluating "leaders", and conducting related certifications. Enterprises can also refer to this document when formulating their own enterprise standards. Main technical content: 2. Evaluation index system: Chapter 4 of this standard mainly elaborates on the basic requirements, evaluation indices, and evaluation methods of the evaluation index system for the "leader" standard of DC motors. The evaluation indices include basic indices, core indices, and innovative indices. The basic indices include stator insulation resistance, voltage withstand, rotation direction, no-load current and loss, overspeed, 40℃ alternating wet-heat, temperature rise, and short-term over-torque. The core indices are selected based on the advanced level required by the general principles, which is the level achieved by the top 20% mainstream enterprises in China. They include maximum torque, locked-rotor current, and locked-rotor torque/accidental over-current. The innovative index is operating temperature. 3. Evaluation technical requirements: Chapter 5 of this standard mainly elaborates on the evaluation technical requirements for the "leader" standard of DC motors. The technical requirements for the basic indices comply with the relevant industry standards. The core indices shall comply with the technical requirements specified in the "leader" group standard and be divided into advanced level, average level, and basic level, corresponding to grades 1, 2, and 3 in the evaluation system. Enterprise standards that meet the requirements of grade 3 or higher can enter the DC motor enterprise standard ranking l