Copper contact wires MF (MF-85, MF-100) and MK round and shaped
GOST 2584 — 86
Types and wire sizes
Types and wire sizes
MK | 30 — 100 mm2 |
MF | 85 — 100 mm2 |
NlOl 0,04F | 85 — 100 мм2 |
Used in the air contact network to transfer energy to electric transport.
Mechanical parameters for contact wires brand MF:
The relative elongation for the MK wires is at least 3.6%, and the number of perigs - at least four. The electrical resistivity of wires to direct current, converted to a temperature of 20 ° C, is no more than 0,0177 * 10-6 Ohm * m.
Mechanical parameters for contact wires brand MF:
| Nominal wire size, mm2 | Relative elongation,% , not less | Temporary tear resistance, MPa (kgs / mm2 ), not less |
| MF-85 | 3,5 | 367,5 (37,5) |
| MF-100 | 4,0 | 362,6 (37,0) |
| NlOl 0,04F-85 | 3,0 | 377,3 (38,5) |
| NlOl 0,04F-100 | 3,5 | 377,3 (38,5) |
The relative elongation for the MK wires is at least 3.6%, and the number of perigs - at least four. The electrical resistivity of wires to direct current, converted to a temperature of 20 ° C, is no more than 0,0177 * 10-6 Ohm * m.
Contact wire MF (MF-85, MF-100)
To provide power to public electric transport, such as trams, trolley buses, and other types, a contact electrical network is formed. To build this network, special MF-85 contact wires are used, which provide reliable power. Round and shaped MF-100 wires from copper are used.
Scope of application
The contact network is the construction of a special network to ensure reliable and uninterrupted power supply of electrified urban public transport. These types of transport, first of all, include trams and trolley buses, as well as the metro network. For the construction of such networks is used precisely wire MF-85, which meets the special requirements.
Also, in addition to public transport, which is driven by an electric motor, such wires can be used in other areas of production and public life. The contact wire MF-100 can be used to build electrical networks to illuminate the station of transport, to power the crossings, as well as for the railway tools and devices.
What is it made of?
The wire MF-85 is made from a special electrolytic copper or copper alloy, where special additives are added. Such a cable must meet a number of special requirements and standards, because the use of this cable to ensure the movement of public transport is of great strategic importance. Such wires are used primarily because of their special qualities. Special manufacturing technology makes this cable very durable and at the same time allows it to conduct electricity well. In addition, the contact wire MF-100 has high rates of wear resistance and corrosion resistance, which is also important, because they have a serious mechanical effect during operation. Therefore, in the manufacture of copper such elements as tin or cadmium are added, it gives the wire a special strength and durability.
Parameters of the wire
The wires of the MF-85, MF-100 have special properties, this requires strict conditions of its operation and use. This cable has maximum smoothness, that is, it has a perfect contact surface, there are no holes, scratches, burrs, roughness, scuffs and other elements. It withstands large indicators to break and comply with many other physico-mechanical parameters. Violation of any of these requirements can at least have a negative impact on the work of the vehicle itself - and this is not acceptable for us!
Therefore, the MF-85 wire is considered a separate direction of our activity, its technical and operational features and production model are different from other types of wires.
Like any other of our products, the wires of the MF-100 correspond to the highest quality and technical characteristics, great attention is paid to testing and certification.