The control cable is PVC insulated and PVC sheathed control cable, suitable for industrial and mining enterprises, energy and transportation departments, control and protection lines with AC rated voltage below 450/750 V.

Features:

1. DC resistance: 20℃, 0.4mm copper wire, less than or equal to 148Ω/km, 0.5mm copper wire, less than or equal to 95Ω/km.

2. Dielectric strength: no breakdown for 1min between 1kV conductors, no breakdown for 1min between 3KV conductors and shields

3. Insulation resistance: each core wire is grounded with other core wires. The control cable is more than 10000mΩ. Km, HYAT cable is greater than 3000mΩ. kilometer.

4. Working capacitance: average 52± 2NF/km.

5. Far-end crosstalk defense: The average power of the specified combination at 150kHz is greater than 69db/km.

Performance Difference:

Control cables are anti-damage, moisture-proof and anti-corrosion, and can be laid in tunnels or cable trenches. Power cables are the backbone of the power system and are used to transmit and distribute high-power electrical energy. Control cables directly transmit electrical energy from the distribution points of the power system to the power connections of various electrical equipment and appliances. The rated voltage of the power cable is generally 0.6/1kv and above, and the control cable is mainly 450/750V.

(1) Control cables are electrical equipment cables, and power cables are two of the five types of cables.

(2) The control cable standard is 9330, and the power cable standard is gb12706.

(3) The insulated core of the control cable is generally black and printed with white characters, and the low voltage of the power cable is generally color-separated.

(4) Control cables usually have larger cross-sections. Its cross-section usually does not exceed 10 square meters, and the power cable is mainly used to transmit electricity.

Due to the above reasons, the specifications of power cables are generally up to 500 square meters, and there are relatively few large-section manufacturers, while the cross-section of control cables is generally small, and the maximum area is generally not more than 10 square meters.

Maintenance:

The price formula of the control cable is as follows: copper weight x copper price = (wire diameter & divide; 2)^2x3.14x number of wires x8.9x current copper price + 10% processing fee.

Cost price calculation for control cables.

Square x1.83 = copper weight x current copper price + armor price (weight x 0.4 yuan/kg) = cost price + 10% processing fee.

Cable Price = Cost of Manufacturing Materials + Fixed Fees + Taxes + Operating Expenses + Profits.

Manufacturing material cost=material cost*(1+material consumption) (material cost is the theoretical value)

The common faults of control cable lines include cable overheating, overvoltage, aging and deterioration of insulation, damp insulation, mechanical damage, insulation damage, etc. When the above fault occurs in the line, the power supply of the faulty cable should be cut off, the fault point should be found, and the inspection and analysis should be carried out. failure, then repair and test. After troubleshooting, the power supply can be restored.