Mention YJV, in these three letters, I believe that friends who are not usually used them may ask what is actually, in fact, yjv is also a generation of yjv, and its name is also called XLPE insulated PVC sheathed power cable, of which YJ Indicates crosslinked polyethylene, and v denotes a PVC sheath.
Among them, YJV also indicates that it is a copper core cable, and yjlv means an aluminum core cable.
XLPE insulated power cable has excellent thermal-mechanical performance, excellent electrical performance, and chemical corrosion resistance, and has the advantages of simple structure, lightweight, and no restrictions on the laying.
It is widely used in urban power grids and mines.
And the new cable of the factory.
Cable insulation - cross-linked polyethylene is a cross-linked polyethylene that chemically and physically transforms a linear molecular structure of polyethylene into a three-dimensional network structure.
Thereby greatly improving the thermomechanical properties of polyethylene, thereby maintaining Excellent electrical performance.
When the cable is stored, it should be packaged to avoid long-term outdoor sun exposure.
The ends of the cable are reliably sealed.
It is not allowed to be stored in a humid environment for a long time, and the cable tray cannot be laid flat. When transporting, the disc height should be considered and fixed effectively.
When lifting, several discs are not allowed to be hoisted at the same time. It is strictly forbidden to push down from a high place.
Cable laying should use special tools, such as pay-off racks, guide rollers, etc., to prevent mechanical damage during the laying process, away from heat sources.
When the cable is laid, the inner diameter of the pipe is not less than 1.5 times the outer diameter of the cable.
When multiple cables are used, the cable is not allowed to be squeezed. The total area of the cable does not exceed 40% of the total area of the pipe.
At the same time, according to the voltage level, it can be divided into:
1KV and below for low voltage cable
1KV~10KV for medium voltage cable
10KV~35KV for high voltage cable
35~220KV for UHV cable.