Applicable to industrial and mining enterprises, Ministry of Energy and Transportation door Polychloride for control and protection circuits with AC rated voltage below 450/750 V ethylene Insulation, PVC sheath control Cable 。 Introduction to control cable
Executive standard of this product: GB/T9330-2008
Model and name
KVV copper core PVC insulated and PVC sheathed control cable.
KVVP3 - copper core PVC insulated, PVC sheathed aluminum foil shielded control cable.
KVV 22 - copper core PVC insulated, PVC sheathed steel tape armored control cable.
KVVRP copper core PVC insulated, PVC sheathed braided shield control flexible cable.
KVVP 2-copper core PVC insulated, PVC sheathed copper tape shielded control cable.
KVVP copper core PVC insulated, PVC braided shield control cable.
KVVR copper core PVC insulated and PVC sheathed control flexible cable.
Use Properties
Rated voltage: U0/U is 450/750V.
The long-term working temperature of conductor core is 70 ℃ and 95 ℃, and the cable laying temperature is not lower than 0 ℃.
The recommended allowable bending radius of the cable is as follows:
The unarmored cable shall not be less than 6 times of the cable outer diameter;
Armored or copper tape shielded cable shall not be less than 12 times of the outer diameter of the cable;
The shielded flexible cable shall not be less than 6 times of the outer diameter of the cable.
Control cable generally refers to equipment instrument power supply/signal control
Representative model: KVV/KYJV/other instrument lines, etc
Main electrical performance of control cable
1. DC resistance: 20 ℃, 0.4mm copper wire, less than or equal to 148 Ω/km, 0.5mm copper wire, less than or equal to 95 Ω/km.
2. Electrical strength of insulation: 1min 1kv non breakdown between conductors and 1min 3kv non breakdown between conductors and shielding
3. Insulation resistance: each core wire is grounded with other cores, and the control cable is more than 10000M Ω. km, and the HYAT cable is more than 3000M Ω. km.
4. Working capacitance: average 52 ± 2nF/km
5. Far end crosstalk defense degree: the average power of * * * combination at 150kHz is greater than 69dB/km.
