YJLV aluminum core PVC cross-linked sheathed power cable

YJLV aluminum core PVC cross-linked sheathed power cable

Model:

yjlv

Payment:

paypal,t/t

Place of Origin:

china guangzhou

Brand:

guangzhou pearl river

Specifications:

2.5mm²

Execution Standard:

ga306.1-2007

Conductor Material:

high quality imported oxygen free copper rod

Insulation Material:

pvc

Weight:

≈kg/100 meters

Package Quantity:

100 meters / volume

Color:

red yellow green blue double black

Model:

yjlv

Payment:

paypal,t/t

Place of Origin:

china guangzhou

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Supplier Info.

Company Name： Guangzhou Zhujiang Electric Power Equipment Industry Co., LTD.

Registration Date： 1998

Country / Region： guangdong / China

City： guangzhou

Main Products： Electrical Cable,Electrical Wire,Wire and Cable

Product Detail

YJLV aluminum core cross-linked cable power cable, a cable used to transmit and distribute electrical energy. It is commonly used in urban underground power grids, power outlets for power stations, internal power supply for industrial and mining enterprises, and underwater power transmission lines crossing rivers and crossing the sea. In power lines, the proportion of cables is gradually increasing. A power cable is a cable product used to transmit and distribute high-power electrical energy in the main line of a power system, including various voltage levels of 1-500KV and above, and various insulated power cables.

basic structure	The basic structure of the power cable consists of a core (conductor), an insulating layer, a shielding layer and a protective layer.
Core	The core is the conductive part of the power cable that is used to carry electrical energy and is the main part of the power cable.
Insulation	The insulating layer electrically isolates the core from the earth and the cores of different phases to ensure electrical energy transmission, and is an indispensable component of the power cable structure.
Shield	Power cables of 15KV and above generally have a conductor shield and an insulating shield.
The protective layer	The role of the protective layer is to protect the power cable from external impurities and moisture, and to prevent external forces from directly damaging the power cable.
Classification	By voltage rating

According to the voltage class, it can be divided into medium and low voltage power cables (35 kV and below), high voltage cables (110 kV or more), ultra high voltage cables (275 to 800 kV) and UHV cables (1000 kV and above). In addition, it can be divided into AC cable and DC cable according to current.

❈ According to insulation material

1.Oil-impregnated paper insulated power cable with oil-impregnated paper as insulation power cable. Its application history is the longest. It is safe and reliable, has a long service life and is inexpensive. The main disadvantage is that the laying is limited by the drop. Since the development of non-drip paper impregnation insulation, the problem of drop limitation has been solved, and oil-impregnated paper insulated cables have continued to be widely used.

2.Plastic insulated power cable The insulation layer is a power cable for extruding plastic. Commonly used plastics are polyvinyl chloride, polyethylene, and crosslinked polyethylene. The plastic cable has a simple structure, convenient manufacturing and processing, light weight, convenient laying and installation, and is not limited by the installation drop. Therefore, it is widely used as a medium and low voltage cable, and has a tendency to replace the viscous oil-impregnated paper cable. The biggest drawback is the presence of dendrite breakdown, which limits its use at higher voltages.

3. Rubber insulated power cable The insulation layer is made of rubber and various compounding agents. After thorough mixing, it is extruded on the conductive core and heated and vulcanized. It is soft and flexible, suitable for occasions with frequent movement and small bending radius. Commonly used as insulating rubber compound is natural rubber-styrene-butadiene rubber mixture, ethylene-propylene rubber, butyl rubber and the like.

By voltage rating

◪1.Low-voltage cable: It is suitable for fixed power transmission on the transmission and distribution lines with AC 50Hz and rated voltage of 3kv and below.
◪2.medium and low voltage cable: (generally refers to 35KV and below): PVC insulated cable, polyethylene insulated cable, XLPE insulated cable.
◪3.high-voltage cable: (generally 110KV and above): polyethylene cable and XLPE insulated cable.
◪4.ultra high voltage cable: (275 ~ 800 kV).
◪5.UHV cable: (1000 kV and above).

❈ Model Description

1. The uppercase of the first letter of Chinese Pinyin indicates the type of insulation, conductor material, inner sheath material and structural features. For example, Z stands for paper (zhi); L stands for aluminum (lv); Q stands for lead (qian); F stands for phase separation (fen); ZR stands for flame retardant (zuran); NH stands for fire resistance (naihuo).

2. The number of outer sheaths is represented by numbers and has two digits. No number represents no armor layer, no outer layer. The first digit indicates the armor and the second digit indicates the outer quilt, such as the thick steel armor fiber, which is indicated as 41.

3. The cable type is generally arranged according to the arrangement of the cable structure: insulating material; conductor material; inner sheath; outer sheath.

4. Cable products are indicated by model, rated voltage and specifications. The method is to add the rated voltage, the number of cores and the nominal cross-sectional area after the model number.

❈ Model details

◆ Category

(1) Category: H - city communication cable
HP - distribution cable
HJ - office cable

◆ Insulation

(2) Insulation: Y - solid polyolefin insulation
YF - foamed polyolefin insulation
YP - foam / solid leather polyolefin insulation

◆ Inner sheath

(3) Inner sheath: A——plastic coated aluminum tape bonded shielded polyethylene sheath
S——Aluminum, steel double metal tape shielded polyethylene sheath
V——polyvinyl chloride sheath