| Security code： | huininggroupm1aGmiL4sIz2R12501 |
|---|---|
| browse： | |
| add time： | 2016-01-29 12:59:25 |
| recommendation： |  |
For industrial and mining enterprises, energy and transportation sector, for the AC rated voltage 450/750 volts below the control, protection and other occasions the use of PVC insulation, PVC sheath control cable.
Performance characteristics
DC resistance: 20 C, 0.4mm copper wire, less than equal to 148 /km, 0.5mm copper wire, less than equal to 95 /km.
Dielectric strength: 1kV 1min between the conductor and the shield 3KV 1min does not breakdown
Insulation resistance: each core wire and the rest of the wire grounding, control cable is greater than 10000M.Km, HYAT cable is greater than 3000M.Km.
Working capacitance: the average value is 52 + 2nF/km
The distal crosstalk ratio: the specified combination of average power value is greater than 69dB/km 150kHZ.
The performance difference
Power cable in main line in power system for transmission and distribution of power and control cables from the distribution point of power system the power supply is directly transmitted to the various electric equipment connecting lines. The rated voltage of the electric power cable is 0.6/1kV and above, the main control cables for 450/750V. The same specifications of power cable and control cable production, power cable insulation and sheath thickness than the thickness control cable.
(a) control cable which belongs to the electrical equipment cable, and power cable is 2 of the five categories of cable.
(two) 9330 is the standard control cable, power cable standard is GB12706.
(three) control cable insulation wire color is generally black and white printing, low voltage power cable is usually color.
(four) section of control cable is generally not more than 10 square meters, power cable is the main power, are generally large section.
Due to all of the above mentioned reasons, the specifications of the power cable can generally be large to 500 square (conventional manufacturers can produce range), another big section generally do manufacturers is relatively less, and control of cable section is generally relatively small, most commonly less than 10 square.
Speaking from the cable core number, power cable according to the requirement of the power grid, most generally 5 core, and control cable transmission control signal, the number of core, according to the standard of a 61 core, but also can according to user requirements production.
