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Communication power line room RVVZ, RVVZ communications room retardant flexible structured cabling - RVVZ (also known as ZRVVR) series flame retardant soft knot cable is flame retardant soft-core power cable, it uses filaments folded form of multi-storey complex twist , has good flexibility, high bending properties, with high flame retardancy, for internal wiring in the engine room distribution system of telecommunications, post and telecommunications, railways, chemical, fire, communications, chemical and other communications, both for fixed laying do move the cable is particularly applicable in the special environment.
Name: communications equipment (communications power supply fire retardant soft power cord cable)
Specifications :6-240mm
a DC cable - communication power retardant flexible cable for communication bureau (station) and high-rise buildings, power transmission and distribution system using flame-retardant flexible cables.
b communication power retardant flexible cables for overhead, pipe, indoor cable trench, buried underground.
Cable Standard: Enterprise Standard
Model: ZA-RVV (ZRRVV, ZRVVR RVVZ) communication power retardant flexible cable
ZA-RVV22 (ZRRVV22, ZRVVR22, RVVZ22) communication power supply fitted with flame retardant steel tape armored flexible cables
ZRYJVR, ZRYJVR22 communication power retardant flexible cable
Communication power with flame-retardant flexible cables flame retardant properties
Communication power retardant flexible cable under the specified test conditions, the sample is burned 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.
Communication power retardant flexible cable rated voltage
The rated voltage cable design and electrical performance test with the reference voltage.
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 - multi-core cable or single-core cable systems,
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.
Communication power characteristics of flame-retardant flexible cables
a communication power retardant flexible cables of rated operating voltage: 450/750V, 600/1000V.
b, communications power supply with long-term retardant flexible cable conductor temperature: 70 ° C.
c, communication power retardant flexible cable laying, the ambient temperature shall be not less than 0 ℃.
d, communication power supply installed retardant flexible cable minimum bending radius: non-armored cable: flame retardant is 6 times the cable diameter, armored cable: 20 times the cable diameter
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| No.3602593
