What is high conductivity copper?
High conductivity copper is the best choice for bulk electrical conductors, such as cables, motor windings and busbars, but there are many electrical accessories, such as terminations, connectors, contactors and circuit breakers, where other material properties are equally or more important.
What is EPT copper?
ETP Copper (CDA 11000) Electrolytic tough pitch copper is intentionally alloyed with oxygen to achieve the best combination of conductivity, capacity for being cold worked, and economy. This is the most widely used copper for wire conductors and is available in round, square and rectangular shapes.
What is the full form of ETP copper?
Copper used for electrical conductors contain more than 99.9% Cu and are identified as either electrolytic tough-pitch copper (ETP) or oxygen-free high-conductivity copper (OFHC).
What is the meaning of tough pitch copper?
1 : the exact state or quality of texture and consistency of refined and remelted copper containing about 0.02 to 0.05 percent oxygen.
What is the thermal conductivity of copper?
3.14. 5 Thermal conductivity coefficient
| Metals | ||
|---|---|---|
| Copper | 386 | 8.80 |
| Gold | 310 | 0.21 |
| Inconel | 15 | |
| Iron, cast | 55 | 0.15 |
What is the copper conductivity?
Catalytic
| Symbol | Cu The chemical symbol for copper is Cu, from the Latin ‘cuprum’, meaning from Cyprus, from where the Romans obtained much of their copper. |
|---|---|
| Colour | Red |
| Melting point | 1084.62°C |
| Boiling point | 2,560°C |
| Electrical conductivity | 58.0-58.9 MS/m (m/Ωmm2) 100.0 – 101.5% IACS at 20°C |
What is C11000 copper?
C11000 Electrolytic Tough Pitch (ETP) Copper is known for its high electrical and thermal conductivity, good corrosion resistance and solderability. C11000 copper is used for welding fixtures, anodes, bus bar in electrical power installations, ground straps, commutators and current-carrying hardware.
What are copper cathodes?
Copper cathodes are the basic building blocks of the copper production. They are the starting point for processing copper. With a purity of at least 99.99% the copper cathodes made by Brixlegg are certified as Grade A by the London Metal Exchange (LME) and registered as the brand “BRX”.
What is the meaning of ETP?
• ETP (Effluent Treatment Plant) is a process design for treating the. industrial waste water for its reuse or safe disposal to the environment.
What is IACS electrical conductivity?
100% IACS is defined as the conductivity corresponding to a volume resistivity at 20°C of 17.241 nΩ•m, which was based on the expected typical conductivity of commercial “pure” annealed copper at the time the standard was adopted by the International Electrotechnical Commission in 1914.
What is the meaning of EC grade copper?
Electrolytic Copper
C 11000 – also known as Electrolytic Copper (EC). This is the most common copper. It is universal for electrical applications. EC Grade has a minimum conductivity rating of 100% IACS and is required to be 99.9% pure. It has 0.02% to 0.04% oxygen content (typical).
Is standard for copper rod?
9.1 The standard value at 20″C for the electrical resistivity of annealed high conductivity copper shall be taken as 0.017 24 ohm mmvm. The electrical resistivity of the strip shall be measured in accordance with IS 3635.
What is the thermal conductivity of ETP copper?
Thermal conductivity of ETP copper vs temperature (temperature range -200 to +25°C and range +50 to +600 °C). Measurements were performed by two methods. First method was based on the axial stationary heat flow in the temperature interval -200 to +25°C, namely from thetemperature of liquid nitrogen to room temperature.
Why does ETP copper have a tough pitch?
If it was level (correct pitch), the oxygen was correct, and the properties good; in other words ‘tough’, hence tough pitch. A level of 0.02% to 0.04% oxygen is maintained in ETP copper to oxidise the remaining impurities to oxides which would otherwise dissolve in the copper forming solid solutions thereby reducing conductivity.
What is the temperature at which ETP copper creeps?
ETP copper does not creep at room temperature (unlike high conductivity aluminium) under normal stresses. However, creep must be considered in the temperature range above 150 o C though this temperature is well above the usual operating temperature of busbars.
What are the shapes of ETP copper bars?
ETP Copper is available in round bar, squares, flat rectangular (bus bar), and certain profile shapes. Electrical conductivity is strongly influenced by chemical composition.