What certification does the flame retardant network cable need to use?

　　For flame retardant network cables to enter the market and be used safely, they usually need to meet a series of standards and certification requirements. Here are some of the main certifications and standards:

　　First, environmental certification

　　ROHS certification: This is a mandatory standard developed by the European Union. It requires the elimination of six substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products, and the content of these substances must be lower than the standard value, especially the content of lead must be less than 0.1%. In China, electronic products are also basically produced according to this standard, so high-quality flame retardant network cables should meet the ROHS standard.

　　Second, flame retardant grade certification

　　National standard GB 31247-2014: This standard classifies the combustion of cables into Class A (non-combustible cable or optical cable), Class B1 (flame retardant B1 grade cable or optical cable, equivalent to low-smoke and halogen-free flame retardant cable or optical cable), Class B2 (flame retardant B2 grade cable or optical cable, equivalent to low-smoke and low-halogen flame retardant cable or optical cable) and Class B3 (ordinary cable or optical cable) according to the performance of cable products in multiple index layers such as combustion calorific value, flame spread, peak heat release rate, and combustion growth rate index FIGRA. On this basis, the above four flame retardant grades are further identified as additional performance grades according to the three indicators of combustion droplets/particulates, flue gas toxicity, and corrosiveness in the combustion test. Among them, B1-class flame retardant cables can prevent the spread of fire in the first place, ensure the security of information in the equipment, and protect the connectors of the equipment from corrosive gases.

　　North American standards: including the US National Electrical Code (NEC), the Canadian CSA, and the US UL laboratory list, etc. These standards have fire protection requirements for both steel cables and optical fibers, and establish different grades of fire protection cable standards, such as CMP (for dry flame retardant), CMR (for vertical trunk), CM (for general use, except flame retardant and vertical trunk), etc. These cables must be tested and meet fire protection, mechanical and electronic standards, and independently tested by the laboratory.

　　III. Other certifications

　　CPR Directive under the European Union CE certification system: From July 2017, all cable products entering the European Union market must meet the EN50575-2014 standard, pass the CPR cable product flame retardant grade evaluation, and obtain the DOP performance statement, which is a mandatory requirement.

　　In summary, to meet the requirements for use, flame retardant network cables usually need to obtain ROHS environmental protection certification, GB Certification of flame retardant rating in 31247-2014 (or corresponding international standards) and other possible regional certifications. These certifications ensure that the environmental performance and flame retardancy of the cable meet certain standards, thus ensuring the safety of use.