Communications power cable

1 products standard: YD/T1173-2001,

Communication power cable:

RVVZ RVVZ22 RVVZ23

ZA-RVV (ZRRVV ZRVVR)

3.RVVZ ZA-the RVV communication power cable is applied to the communication bureau (station) and high-rise buildings, power transmission and distribution system using flame-retardant flexible cables.

Communication power of 4.RVVZ22 ZA-RVV22 fitted with flame retardant steel tape armored flexible cables for overhead, pipe, indoor cable trench, buried underground.

Flame retardant properties under specified test conditions, the specimen was burning, after the test fire source is removed, the flame spread only within limits, the residual flame or residue burning in a limited time to self-extinguishing characteristics.

Rated voltage and rated voltage is the reference voltage cable design and electrical performance test. Rated voltage U0, U said that the unit as V. U0-either an insulated conductor and the rms voltage between "ground" (the metal of the cable sheath or surrounding medium). Rms voltage between any two phase conductors of the U-core cable or single core cables for AC system, the rated voltage of the cable should be at least equal to the nominal voltage of the cable system. The conditions are applicable to U0 and U-values. When used for DC system, the system's nominal voltage should be less than cable rated voltage of 1.5 times. Note: the operating voltage of the system allows more than 10% of the nominal voltage of the system for a long time. If the cable's rated voltage is at least equal to the nominal voltage of the system, the cable can be higher than 10% of the rated voltage of the operating voltage.

7 features:

Cable rated working voltage: 450/750V, 600/1000V,.

Long-term operating temperature of cable conductor: 70 ℃.

The ambient temperature should be not less than 0 ℃.

The minimum bending radius: non-armored cable: flame retardant is 6 times the cable diameter, armored cable: 20 times the cable diameter.