Difference Between Flame Retardant And Fire Resistant Cables

The title of iec 60331 is test for electric cables under fire conditions circuit integrity.

Difference between flame retardant and fire resistant cables.

Fire resistant cables are often used to maintain circuit integrity of those vital life safety systems such as fire alarm and suppression services. There are enormous differences between flame retardant cables and fire resistive cables. Due to relative low cost fire retardant cables are widely used as fire survival cables. Similarly without being made of certain nonflammable fibers a fabric will not quality as fire resistant.

Oxygen barrier cable also known as highly flame retardant cable. A layer of non melting non flammable halogen free smoke free fire resistant plastic material is filled or wrapped between the cable insulated core and the cable sheath i e insulating organic is used to isolate the cable from the outside oxygen gas so that the cable is non. Flame retardant cables are designed to resist the spread of fire into a new area. Without a special chemical application a fabric will not qualify as flame retardant.

Flame retardant cables can resist the spread of fire but fire rated cables maintain circuit integrity and continue to work in the presence of fire. Typically flame retardant cables resist the spread of fire into a new area whereas fire resistive cables maintain circuit integrity and continue to work for a specific time under defined conditions. This article below will describe the differences between flame retardant and fire rated cables. In term of cable construction it is essential to distinguish the outer sheath colour between flameretardant cable and fire resistant cable.

Fireproof wire and cable is a general name for the fire resistance wire and cable usually divided into flame retardant wire and cable zr bv and fire resistant wire and cable nh bv. A flame resistant cable in this manner would let the circuit stay in operation allowing power to be transferred through it while this would not be the case with a flame retardant cable. For iec 60322 is test on electric cable under fire conditions. Iec 60322 fire resistant.

The main code as follow. Difference between flame retardant cable and fire resistant release time 2016 05 27 14 43 hit. The biggest difference between flame resistant and flame retardant fabrics lies in how each is made. A fire resistant cable will continue to function in the event of a fire and is also identified as a circuit integrity cable a flame retardant cable on the other hand will not propagate or convey a fire.

Commonly fire resistant cable has red outer sheath jacket while flame retardant may have grey or black outer sheath jacket. But of course we have to learn more than that.