Comparison Table of National Standards for Flame-Retardant Optical Cables
The flame retardant levels of ZA, ZB, ZC, and ZD refer to GB/T 19666-2019 "General Rules for Flame Retardant and Fire Resistant Wires, Cables, or Optical Cables", which are divided into four categories: ZA, ZB, ZC, and ZD according to the combustion. Corning Optical Communications manufactures quality flame retardant optical fiber cables for indoor applications, which comply with the requirements of the National Electric Code® (NEC® 2023) published by the National Fire Protection Agency (NFPA). State Administration for Market Regulation; Standardization Administration of the People's Republic of China. This Standard specifies the code, technical requirements, test methods and acceptance rules for the combustion characteristics of flame-retardant and fire-resistant wires, cables or optical. OFNP rated cables are commonly used for trunks, and OFNR for in-cabinet patching Data communication cables are manufactured to fulfil specific certain fire test standards depending on global locations.
Read More
