GB/T 13849-2025 Communication cables with polyolefin insulation and moisture barrier polyolefin sheath up to 1 MHz
GB/T 13849-2025 Communication cables with polyolefin insulation and moisture barrier polyolefin sheath up to 1 MHz
Basic Information
Scope
This document specifies the structure, mechanical and physical properties, electrical performance requirements, test methods, inspection rules, and marking and packaging of copper-core polyurethane insulated and moisture-proof layer polyurethane sheathed communication cables with a frequency of 1 MHz and below. This document is applicable to communication cables used for transmitting audio signals and digital signals at a rate of 2B+D or lower in integrated services digital networks (ISDN), as well as cables used for transmitting digital signals at a rate of 2048 kbit/s or lower or analog signals at a frequency of less than 150 kHz. Under certain conditions, it can also be applied to cables used for transmitting digital signals at a rate of more than 2048 kbit/s. It is also suitable for use in urban and suburban telephone lines and communication systems in densely populated areas (railways, power stations, factories, smart buildings, etc.) with copper-core polyurethane insulated and moisture-proof layer polyurethane sheathed communication cables with a frequency of 1 MHz and below.