Why Do Low Flame-retardant Copper Terminal Blocks Fail To Perform Their Flame-retardant Function In High Fire-prevention Environments?

If low-flame-retardant copper terminal block materials are used in areas with high fire protection requirements, they will still not provide sufficient flame retardancy in the event of a fire. A low flame retardancy rating means that the insulation or structural materials of the copper distribution block material may lose their self-extinguishing or flame-retardant ability after a rapid increase in temperature, leading to an accelerated spread of flames. Alternatively, if the substrate or connecting components of the copper terminal strip material fail to pass stringent flame retardancy standard tests (such as the hot wire ignition test or arc ignition test required for terminal components in IEC 60947-1), they may fail prematurely in a real fire environment.