This product complies with GB12706-2008 "Extruded insulated power cables and accessories for rated voltages from 1kV to 35kV", GB12666.5 "Wire and cable bundle burning test", IEC60754 "Test method for gas released when materials taken from cables or optical cables burn 》And IEC61034 “Determination of Smoke Density of Cables or Optical Cables Burning under Specific Conditions”. At the same time, they can be produced according to the International Electrotechnical Commission’s recommended standards IEC, British Standards, German Standards and American Standards.