T/SZAS 57-2022 Abolished Group standards

T/SZAS 57-2022 Quality grading and "Pioneer" evaluation requirements for PVC insulated PVC sheathed shielding flexible wire

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 57-2022

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Cables and their accessories

ICS Name: Wire

Publish Date: 2022-08-01

Implement Date: 2022-08-03

Scope

Scope: This document specifies the evaluation indicators and methods, as well as the grading system, for assessing the quality and enterprise standard level of PVC-insulated and PVC-sheathed shielded flexible cables. This document applies to the evaluation of the quality and enterprise standard level of PVC-insulated and PVC-sheathed shielded flexible cables. Relevant institutions can refer to it when conducting quality grading and enterprise standard level assessments, evaluating "Leader" standards, and conducting related certifications. Enterprises can also use this document as a reference when formulating their own enterprise standards. Main Technical Content: 1. Evaluation Indicator System: Chapter 4 of this standard mainly elaborates on the basic requirements, evaluation indicators, and evaluation methods of the evaluation indicator system for the "Leader" standard of PVC-insulated and PVC-sheathed shielded flexible cables. The evaluation indicators include basic indicators, core indicators, and innovative indicators. Basic indicators include structural inspection, insulation and sheath thickness measurement, outer diameter or shape dimensions, ellipticity, conductor resistance, voltage test, insulation resistance, and marking resistance test. The core indicators are selected to meet the advanced level requirements of the general standards, which are achieved by the top 20% mainstream enterprises in China, including tensile strength before insulation aging, elongation at break before insulation aging, weight loss test of insulation and sheath, tensile strength before sheath aging, elongation at break before sheath aging, and shielding density. The comparison of core indicator items with relevant domestic and international standards is as follows: Innovative indicators are ROHS toxic and harmful substances. 2. Evaluation Technical Requirements: Chapter 5 of this standard mainly elaborates on the evaluation technical requirements of the "Leader" standard for PVC-