Frequently Asked Questions from TANO CABLE

During high-voltage power transmission, overhead conductors are the main component of overhead power lines, and their role is to transmit power. However, the material of high-voltage transmission conductors is almost aluminum. Why don’t we use copper? There are three reasons. 1.aluminum as a material for high-voltage transmission lines can save costs 2.The weight of copper as conductor is more than twice that of aluminum . Because the weight of the conductor is very heavy, the pulling force of the wire will be very large due to the action of gravity, and it is easy to break, which is very dangerous. The high-voltage transmission line is twisted into multiple strands, with a steel wire in the center and aluminum wire around. It supply good electrical conductivity, but also has low density and light weight. 3.In addition, aluminum resources are much richer, and the price is much cheaper. Therefore, aluminum as conductor have so many advantages, and aluminum is used as a conductive material for high-voltage power transmission.

(1) The long-term allowable working current of the cable; (2) Thermal stability once short circuited; (3) The voltage drop on the line cannot exceed the allowable working range.

They will have both overhead and underground cables available.They produce very durable cables.You can get aerial bunched cable price list of great factory here.By working with companies that understand how to effectively manufacture these cables, in China you can obtain affordable ABC cables.

1、The voltage flowing in the high-voltage power line is very high, the current is very large, it is easy to generate heat, it will burn the insulation skin, and even break down the insulation. 2、The high-voltage power line is very long, and the bare conductor can reduce weight. 3、The high-voltage power line are generally erected in air, with erection height requirements, and not easy to reach. As long as they meet the safety distance requirements,bare conductor will not cause danger. Hope our answer can be helpful to you.

A When a single-core cable is switched on and off by alternating current or direct current, a corresponding alternating magnetic field will be generated around the cable, and an induced current will be generated in the metal material. This current flows inside the metal material, much like a vortex of water, so it is called a vortex. Electric current, referred to as eddy current. The thermal effect of the eddy current can heat the metal material in a short time. If the heat cannot be dissipated in time, it will cause the cable insulation layer to melt or accelerate the aging, and the insulation performance will weaken and cause the cable to break down. Armored steel tape has good magnetic permeability and can be magnetized under the action of a very small magnetic field to generate eddy currents. Single-core cables should be armored with non-magnetic materials, such as stainless steel tape, copper tape, aluminum tape or non-magnetic metal wire armor. In addition, single-core cables are easy to use finished glyphs during construction. Single-core cables try to avoid magnetic materials, such as iron pipes, iron clamps, etc., which can form a closed circuit. In addition, for a three-core cable, the alternating magnetic field generated by the three-core phase relationship cancels each other out, so that the vector sum of the induced current is 0, and no magnetic field lines pass through the armor. Therefore, steel tape armor can be used.

(1) Use flame-retardant cables; (2) Use fireproof cable tray; (3) Use fireproof paint; (4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.; (5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.