Fire alarm fire line with flame retardant cables and fireproof cables
Flame retardant cable: refers to under specified test conditions, specimen was burning, after removed test of ignition, flame spread only in a limited range, or the flames burning residue in the finite cable to self extinguishing in the course of time.
The main emphasis on stop the fire spreading, self-extinguishing. De-emphasis of fire can keep electrical properties.
Fire-resistance cable: refers to the flame to be able to keep a certain time to safe operation of the cable.
Focuses on fire electrical performance. Don't emphasize the flame retardancy.
The flame retardancy to meet the relevant provisions of the GB/T18380.3. To meet the provisions of GB/T12666.1 fire resistance. Can claim to be flame retardant or refractory, is by the product according to the experiment conditions. A specific test environment and time.
Please refer to the related standards test equipment:
KP8023 bunched wire and cable combustion testing machine
KP8026B single wire cable vertical burning test machine
Finally, fire alarm related cables and wires should use of refractory, Ming fu must wear metal ducts. If the flame retardant cable fire retardant coating to brush.
