GB/T 19216.11-2003

This standard specifies the test apparatus and procedures for evaluating the circuit integrity of electric cables when exposed to fire alone at a flame temperature of at least 750°C. It is applied in the electrical engineering industry to test cables used in critical safety systems, such as emergency lighting, fire alarms, and power circuits in buildings, tunnels, or industrial facilities, ensuring they maintain electrical continuity during a fire. The standard is particularly relevant for certification and quality control of fire-resistant cables in contexts where operational reliability under fire conditions is mandatory.