Copper bus bar shmt
Advantages
Copper bus bar is reliable, durable, inexpensive and capable of working at significant temperature variations from -200°C to +250°C. It has high thermal and electrical conductivity, resistance to atmospheric and soil moisture. It is very malleable, easy to cut, drill, available to all types of soldering and welding. Ease of installation, aesthetic appearance, long life and harmlessness — make copper bar extremely advantageous to use. In addition, copper products are usually reused after recycling.
Manufacturing
Copper bars are made from rectangular cross section, pressed ingots or billets based on copper rods. Copper alloys are used: M1, M2, M3, the chemical composition is regulated by GOST 859−79. Copper rod is produced hard, semi-hard or soft. The surface must be clean, smooth, without any visible defects. Perhaps the presence of traces of broaching.
| Copper tire | GOST | TU | Mark | Cut |
|---|---|---|---|---|
| Pressed | 434−78 | 1844−195 430−107−99; 1844−086−195 363−2000 |
M1; M2 | 16x220 |
| Semi-hard | 434−78 | 1844−124−195 430−2005 | М1 | all dimensions according to GOST |
| PPP with increased surface finish | 434−78 | 1844−117−195 430−2007 | М1 | all sizes according to GOST |
GOST 18 690−82 requires the brand, tire parameters and the current standard.
Copper tire domestic GOST 434−78
| Chemical composition | Thickness | Width | Mark | Varieties | Specific resistance at 20 ° C |
|---|---|---|---|---|---|
GOST 859−78 |
4 -30 mm | 16 -120 mm. | not less than M1 | CMM soft MMT hard PMT rigid of oxygen-free copper |
Up to 0,1 724−106Ohm-m) |
Tire marking meets the requirements of GOST 18 690−82. An example of marking: SMT 8,00x60,00 GOST 434−78.Solid copper tire 8x60mm:
Tire copper imported
Foreign suppliers: VBS (Serbia), MKM (Germany), LUVATA (Finland). Bus bars from these manufacturers have the highest chemical purity and electrical properties, accurate compliance with the parameters, excellent electrical conductivity (58.1−58.3MS/m).
Standards of imported busbars copper electrical
| Standard | Mark | Variety | Note |
|---|---|---|---|
| DIN-1787 | Cu-OF, Cu-OF1, Cu-OFE | Oxygen-free copper bars | High ductility and resistance to hydrogen embrittlement |
| EN-13 601 | Cu-ETP, Cu-ETP1, Cu-FRHC | Flexible tires made of oxygen-containing grades | Protection against hydrogen embrittlement is required. |
| EN-13 601 | OF-OK | Made of deoxidised, oxygen-free or silver added deoxidised copper | Increased softening point. |
Use
Copper bars, busbars and flat bars are indispensable in today’s industry for the installation of electrical circuits or switchgear. Neither radio engineering nor electrical engineering can do without it today. Oxygen-free copper bars are indispensable in nuclear power engineering, vacuum and aerospace, linear gas pedals, etc.
Supply
We supply certified copper bars in all models. The technical documentation includes data on the percentage composition and electrical qualities of the products. From us it is easy to buy in bulk any semi-finished products for large-scale production. We also cooperate with retail buyers. The high level of service and responsiveness of service is the face of our company.
Buy at a bargain price
The website of Evek GmbH presents the most up-to-date information on the purchase of copper bars. Our best managers are ready to provide highly qualified consulting assistance on any current issues. We sell semi-finished products of non-ferrous metals at a competitive price. Products are manufactured on the most modern equipment and meet the requirements of international quality standards. All products are ultrasonically tested for defects. Regular customers are offered a system of discount discounts.