What is a flame-retardant cable? Is a fire-resistant cable fire-proof?
The flame retardancy and fire resistance of power cables are two completely different concepts. Flame-retardant cable refers to a cable specimen that, under specified test conditions, maintains flame spread within a specified range after the fire source is removed and self-extinguishes, effectively preventing or delaying the burning of the cable. Fire-resistant cable, on the other hand, is a cable that maintains continuous operation under specified fire sources and for a specified duration. This means the cable maintains circuit integrity during combustion.
