Tag Archives: Cables

559 AAAC – all aluminum alloy conductor Application: All aluminum alloy conductor or AAAC is a kind of cable, which is mainly used for power distribution services and overhead transmission, including primary and secondary. The cable can also be used for grounding in electrical structures. Due to the use of durable aluminum alloy, the conductor […]

Extruded insulating materials are polymer insulating materials, and their physical and chemical properties are determined by their chemical structure, chemical natural force and size. electrical properties of extruded insulating materials shall be graded according to their response under operating field strength. Under low operating field strength, the electrical properties of polymer materials used as cable […]

Product name Overhead AAAC conductor Applicable occasions In the overhead insulated cable line, it can be used for fixed laying or household line performance 1. Light weight; 2. Large breaking force and high safety factor: 3. Large span: the cable has light weight and large breaking force, which can reduce cable sag. The span is […]

Flexible mineral insulated cable mineral insulated cable can be divided into rigid and flexible according to structure. There are only six types of national standard rigid mineral insulated cables: bttq, bttvq and wd-bttyq with light load of 500V, and bttz, bttvz and wd-bttyz with heavy load of 750V The models of national standard flexible mineral […]

Overhead ACSR Cable 477 MCM

October 8, 2021

Overhead ACSR Cable 477 MCM Voltage: Low Voltage/Middle Voltage/ High Voltage Conductor Type: Stranded Conductor: Aluminum Alloy 1350 Origin Place: China         Application: Used as bare overhead transmission cable and as primary and secondary distribution cable .ACSR offers optimal strength for line design. Variable steel core stranding for desired strength without sacrificing […]

On the basis of ensuring safety, the state has formulated certain indicators for wires and cables. Only when relevant indicators are met can they be called national standard wires. As for the allowable long-term working temperature of wires and cables, rubber insulation is usually 65 ℃, PVC insulation is 70 ℃ and cross-linked polyethylene insulation […]

Both YJV and BVV cables are suitable for outdoor street lighting and are also used to transmit electric energy. However, the models of these two cables are different. What are the differences in voltage, structure, characteristics and purpose? BVV cable: copper core PVC insulated PVC sheathed Du round cable (wire). YJV cable: XLPE insulated PVC […]

With the increasing competition in the wire and cable industry, M & A integration and capital operation among large wire and cable enterprises are becoming more and more frequent. Domestic excellent wire and cable production enterprises pay more and more attention to the research on the industry market, especially the in-depth research on the change […]

Power cables have long been widely used in our lives. The safety of their operation is related to our normal life and the safety of life and property. Therefore, the maintenance of cables is a vital work. The following small series will analyze what we need to know about the correct use of power cables. […]

Basic theory of cable medium 2.1 introduction whether electric energy or signal is transmitted by wires and cables, the purpose is to use it to transmit current to the power receiving equipment or power receiving end. To achieve this, a conductor is required to transmit the required load current. It is also important to keep […]

The so-called “partial discharge” refers to a kind of discharge in which only some areas in the insulation system discharge without forming a penetrating discharge channel under the action of an electric field. The main reason for partial discharge is that when the dielectric is uneven, the electric field strength borne by each area of […]

Fireproof wires and cables are the general name of wires and cables with fireproof performance. They are usually divided into flame-retardant wires and cables and fire-resistant wires and cables. For some designers just engaged in electrical design, it is essential to understand some cable characteristics in the industry. Let’s talk about the difference between flame-retardant […]

Speaking of wires and cables, we have to mention copper and aluminum in their main materials. The question is, what is the difference between copper core and aluminum core wires and cables? Which is better? Let’s get to know~ There are several ways to distinguish whether the wire core is copper core or aluminum core […]

1、 Greedy for low prices. This is a common misunderstanding of many users and even some enterprises in the exercise of wires and cables. In order to save money and ignore safety, some users choose low-quality wires and cables with low price, no guarantee of quality and great potential accidents. We know that due to […]

1. Electrical conductivity: the conductivity of aluminum alloy is 61.5% of copper IACS, and the current carrying capacity is 79% of copper, which is better than pure aluminum standard. 2. Creep resistance: the alloy material and annealing process of aluminum alloy conductor reduce the “creep” tendency of conductor under heating and pressure. Compared with pure […]

The operation quality, safety and reliability of power supply system are not only related to the quality of wires and cables, but also to the construction quality of cable accessories and lines. 1. Cable laying method The cable laying methods are as follows: directly buried laying, pipe laying, shallow trench laying, cable trench laying, cable […]

1. What should be paid attention to in the process of cable loading and unloading? Answer: In the process of transportation and loading and unloading, the power cables and cable trays shall not be damaged. It is strictly prohibited to push the cable trays directly from the vehicle. Cables should not be transported and stored […]

1. Why is it necessary to install a return line parallel to the cable in the single-core cable jacket earthing mode? Answer: In the cable line that is earthed at one end of metallic sheathing, to make sure the inductive voltage in protecting a jacket does not exceed permitted standard, must install the conductor that […]

Conductor material of power cable Copper conductor shall be used for power cables used in the following situations Motor excitation, important power supply, mobile electrical equipment, etc. should be connected with high reliability circuit Working environment such as vibration place, explosion risk or corrosion to aluminum; Fire resistant cable Close to high temperature equipment Crowded […]

With the continuous acceleration of social development, the demand for electricity is increasing day by day. With the advantage of high power supply reliability, power cables are more and more used in the transmission and distribution domains. At present, cross-linked polyethylene (“XLPE“) insulated power cables are safe and convenient, and easy to operate and maintain. […]

1. Cable shall be laid through pipes in the insulation wall: The wall is composed of weatherproof outer strong skin, insulation layer and wood with heat transfer coefficient of 10W/m2K or similar wood inner wall skin. The wire tube is fixed close to the inner wall, but not necessarily touched. Imagine that the heat of […]

ACSR conductor AWG size chart This table including ACSR conductor sizes and current carrying capacity,images of AWG AAAC,AAC and ACSR conductor . ACSR conductor (Aluminum conductors steel-reinforced) Standards : IEC/ASTM/BS/NFC/CSA/EN Voltage: low/middle/high voltage Material : Aluminum Alloy 1350/Gi steel core Origin Place : China CONSTRUCTION: Aluminum 1350-H19 wires, concentrically stranded around a steel core. Core […]

1. The selection of cable sheath shall meet the following requirements: (1)For AC system single-core power cables, when it is necessary to enhance the resistance of the cable to external forces, a non-magnetic metal armor layer should be used. Effectively treated steel armor. (2) In a humid, chemically corrosive environment or easily immersed in water, […]

1.The selection of cable insulation type shall meet the following requirements: Under the operating voltage, operating current and its characteristics and environmental conditions, the cable insulation characteristics should not be less than the conventional expected service life. The selection should be based on factors such as operational reliability, ease of construction and maintenance, and comprehensive […]

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