ZR-KVVP2-22 model indicates a price of 10 * 2.5

MVVCables are mainly used in coal mines and industrial environments as key energy transmission links‌.

It has electrical performance and mechanical strength, which can effectively resist moisture, corrosion, and mechanical impact in underground mines‌.

The flame retardant properties of cables provide important guarantees for mine safety, which can slow down the spread of fire in case of accidents‌.

Structure and Materials‌：

MVVThe internal conductor of a cable is usually twisted with copper core wire, ensuring strong current carrying capacity‌.

The insulation and sheath materials of cables are often made of high-strength and wear-resistant polyvinyl chloride(PVC), providing good electrical insulation and physical protection‌.

Some modelsMVVThe cable also adopts special structural design, such as steel tape armor, to enhance its compressive and tensile strength‌.

Purpose: This product is rated voltage for use in coal mines10KVThe fixed laying cables below are suitable for power transmission underground in coal mines.

For the ZR-KVVP2-22 model, it represents the following meanings.

ZRRepresents flame retardancy.
KRepresents the meaning of controlling cables.ZR-KVVP2-22 model indicates a price of 10 * 2.5
VVRepresents polyvinyl chloride insulation and polyvinyl chloride sheath.
P2Represents copper tape shielding.
22It represents steel belt armor.
In general, the full name of this cable is: Flame retardant copper core PVC insulated PVC sheathed copper tape shielded steel tape armored control cable. Below, I will focus on explaining its structure.
We can intuitively determine how many cores a section of cable has from the cross-section of the control cableZR-KVVP2-22 model indicates a price of 10 * 2.5Making cables is7Core based, some control cables are4The core and some control cables are10Core.
The internal structure of the control chain cable needs to be stripped off, of course1We can directly see the layer, which is the PVC sheath.
Going further down, the2The layer is a layer of steel strip. The steel strip is composed of two strands, which are wrapped around each other to protect the cable from internal damage caused by mechanical action.
At the bottom of the steel strip, it is the3Layer. This is a layer of insulating leather, and this layer of insulating leather should be compared. The outer layer of protective cover should be thinner.
Peel off this layer of insulating leather, that's the first step4Layer. Inside is a copper strip, which is the shielding layer of the copper strip. Its function is to ensure the stability of the transmitted signal.
The copper strip goes further inside, it's the first5Layer. This layer is made of transparent plastic paper. Inside the plastic paper is the core of the control cable.
The yellow object on the outside of the wire core is the outer wrapping of the control cable6Layer refers to the polyvinyl chloride insulation layer.
The above is for a paragraph7Core's2.5Introduction to square control cables, and of course4Core's2.5The internal structure of the square control cable is basically the same as the cable explained above, except for a few fewer cores. This type of cable with fewer cores will have an inner lining placed between the cores.
There will be more10Core's2.5or1.5Square control cable. It also has an inner lining layer inside, and the white substance between the wire cores is the inner lining material