Battery Connection Cables for Electric Energy Storage Systems

This document specifies the joint standard CQC 1143 & PPP 58049A for battery connection cables used in electric energy storage systems. It covers cables with a maximum DC voltage of 1500V and a maximum continuous operating temperature of 125°C. The standard defines usage characteristics, technical requirements, test methods, and performance requirements for finished cables. It applies to DC side connections between battery modules, clusters, combiner boxes, and storage system converters. Key sections include normative references, terms and definitions (e.g., energy storage system, power conversion system, combiner box), usage features (rated voltage, temperature range, flame retardancy, bending radius), product coding and marking, technical requirements for conductors, insulation, sheathing, and outer diameter, as well as testing procedures for structural dimensions, electrical and non-electrical properties, and special properties like liquid resistance. The document also outlines inspection rules, delivery lengths, and guidelines for marking, packaging, transportation, and storage, with an appendix detailing a battery acid liquid resistance test.