An old familiar friend - a copper wire
There are many kinds of cables, but we, the people home, are the closest copper cable. About him we at least a little, but heard, and even probably twisted it in his hands. It has a lot of advantages:
- high degree of current and heat conductivity;
- retains its properties even after oxidation;
- is flexible and plastic;
- does not break under mechanical influence and when twisting;
- does not spread combustion, but continues to function for 3 more hours.
Copper cable is divided into several groups, including different types.
Variety of copper cables
Power copper cable - transfers energy to transport facilities, industrial enterprises, public facilities:
- copper power cable ASG - insulated in PVC sheath. Used for distribution and transmission of electricity not more than 1 kV with alternating voltage in stationary installations, and also installation in wet and dry production premises and in the open air.
- copper cable VVGng - insulated in a PVC sheath that does not support combustion. It is used for connection, as well as distribution of electricity for a nominal alternating voltage of 1000 V and 660 V at a frequency of 50 Hz. It is laid in the same conditions as the conventional VVG.It is not recommended to lay it in the ground.
- cable power copper armored VBbSh - PVC insulated, having a protective cover of two tapes of steel. They are made in such a way that the upper one covers the gaps on the turns of the lower band. It can be laid in the ground, tunnels, mines, canals and in the open air, even if there is a risk of mechanical damage.
- copper armored cable VEVBbShV - has copper cores, PVC-insulated PVC sheath with protective cover in the screen. Suitable for laying in mines at a voltage of 6 kV.
- KG - has insulated rubber stranded wires in a rubber sheath. They are used to connect mechanisms that can move, can be laid in rivers, on land, in lakes, and also in indoor and outdoor areas.
Cable, non-halogen-free - transfers energy inside and outside of premises via overhead lines without additional protection:
- YnKY - copper power cable, insulated and in polyvinyl sheath. It is used for transmission to a nominal AC voltage of up to 1 kV.
- N2XH is an insulated cable filled with halogen-free substances and in a sheath. Transmits energy up to 1 kV to the rated alternating voltage for objects with the requirement of increased fire safety.
The halogen-free flame-retardant cable - its insulation retains its properties in the event of fire:
- FLAME-X 950( N) HXH FE180 / E30 is a refractory cable that retains its functions( at 800 ° C for at least 3 hours)Isolation functions for the fire of the system on which the cable is fixed for 30 minutes. It is used wherever the security of material and cultural values, as well as of people, is needed.
- FLAME-X 950( N) HXH FE180 / E90 is fire-resistant, it retains its functions at 800 ° C for at least 3 hours, and also retains insulation functions in case of a fire on the system where the cable is fixed for 90 minutes.
Control cable - used for fixed connection to switchgear, apparatus and electrical appliances with a frequency of up to 100 Hz, rated AC voltage up to 660 V and constant voltage up to 1000 V.
Its known version is cable ASH11 - PVC insulated, used fornon-mobile connection to electrical appliances, switchgears. Resistant to bending during installation.
Kinds of wires and cords made of copper
Cords and wires - used for household appliances, electrical installations, machines and mechanisms for stationary installation in power and lighting networks:
- wire PVS - copper flexible cable with twisted conductors, insulated and in sheath. Used to connect household electric tools and electrical appliances and to produce cords for voltage up to 380 V.
- wire ШВВП is a flexible insulated cable with parallel conductor sheaths. Used to connect household electric tools and electrical appliances and to produce cords for voltage up to 380 V( most often a copper cable 2x2.5).
- wire MG is a single-core, flexible wire without insulation. Used for melting furnaces and connecting antennas.
- ASUS is a self-supporting copper cable with a single-wire residential diameter of 0.5 mm, insulated and equipped with a self-supporting element. Used in signaling and communication networks.
The cable that transmits the information - transmits a digital signal, as well as an analog one:
- UTP5e - unshielded twisted pair. Used to transmit a digital voice signal indoors.
- FTP5e - twisted shielded pair. Used to transmit a digital voice signal inside buildings. From radio interference is protected by aluminum foil.
