T/ZZB 0057-2021 Active

Scope: This document specifies the terms and definitions, environmental conditions, basic requirements, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage, and quality commitments for rail transit connectors (hereinafter referred to as connectors). This document applies to connectors with a rated voltage of not more than 2,000 V and a rated current of not more than 1,000 A, used in air conditioners, driver's controls, vehicle ends, traction equipment, auxiliary equipment, and electrical cabinets in rail transit vehicles. Main technical content: This document specifies the terms and definitions, environmental conditions, basic requirements, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage, and quality commitments for rail transit connectors (hereinafter referred to as connectors). This document applies to connectors with a rated voltage of not more than 2,000 V and a rated current of not more than 1,000 A, used in air conditioners, driver's controls, vehicle ends, traction equipment, auxiliary equipment, and electrical cabinets in rail transit vehicles.