T/ZZB 1584-2023 Surge Protective Device (SPD) for Low Voltage Distribution System
T/ZZB 1584-2023 Surge Protective Device (SPD) for Low Voltage Distribution System
Basic Information
Scope
Main technical content: This document specifies the terms and definitions, usage conditions, basic requirements, classification, standard rated values, technical requirements, test methods, inspection rules, packaging, transportation and storage, and quality commitments for surge protectors used in low-voltage power supply systems. This document is applicable to indoor low-voltage distribution systems that use surge protectors (hereinafter referred to as SPDs) to protect against indirect lightning and direct lightning effects or other transient overvoltages. SPDs must contain at least one non-linear component used to limit voltage and discharge surge currents. After assembly, SPDs are connected to circuits and equipment with an AC rated voltage not exceeding 1,000 V (rms) and a frequency of 50/60 Hz.