Product Description
BTTZ is the rigid mineral insulated cable with the best fire performance. The mineral insulated cable commonly used in the market now is basically improved on the standard fire performance of BTTZ cable, which is also the higher price among the mineral insulated cable models. Next, introduce the characteristics and uses of BTTZ cable.
In the building engineering fire design specifications in the fire protection system must use mineral insulated cable, BTTZ is one of the mineral cable models, and other yttw, btly, bbtrz, etc.; is a copper core copper sheath plus magnesium oxide insulation material composition, using drawing process and annealing treatment. It is a real fireproof cable, which can keep normal power for more than 3 hours at 950℃~1000℃ in a fire.
Meaning of model:
Z/Q---- outer sheath: polyvinyl chloride V, polyethylene Y
T---- copper conductor
T---- copper sheath
B---- fixed installation power cable for wiring
Characteristics of BTTZ cable
With high temperature resistance, fireproof, explosion-proof, non-combustible (250 ℃ can be continuous for a long time, 1000 ℃ limit state can also be 30min for a short period of time) and high load capacity, small outer diameter, high mechanical strength, long service life, generally do not require independent grounding conductor characteristics.
BTTZ cable application scope
It is widely used in hospitals, schools, banks, apartments and key project works. In recent years, it has also been used in high-rise buildings, airports, terminals, underground railways and other places to ensure the uninterrupted operation of fire pumps, fire elevators, local lighting, emergency evacuation instructions, security surveillance, fire prevention and smoke extraction systems and self-supplied power supply and other important equipment.
Advantages of BTTZ cable
1, Completely fireproof. BTTZ cable itself is completely non-combustible, and at the same time does not cause fire. In the flame temperature is lower than the copper melting point temperature of the flame burning, the cable can still be used normally after the flame is extinguished later.
2, Strong overload protection capability. When the line is overloaded, as long as the heat does not reach the melting point temperature of copper, the cable will not be damaged.
3, high working temperature. BTTZ cable insulation layer of magnesium oxide crystal melting point temperature is much higher than the melting point temperature of copper, so the normal working temperature up to 250 ℃.
4, anti-corrosion, anti-violence performance is superior. Seamless copper tube sheath has the role of waterproof, moisture-proof, anti-corrosion of chemical substances, the use of copper tubes with explosion-proof performance.
5, long life. BTTZ cable is composed entirely of inorganic materials, so there is no insulation aging, the service life can reach more than three times the ordinary cable.
