- #1
bibincjoy
- 5
- 0
Please explain the below:
Resistance@95 =R@35 x (1+α*(95x(I/Io)²+20))/(1+75x α) at the actual current A (I Act).
Resistance@95 =R@35 x (1+α*(95x(I/Io)²+20))/(1+75x α) at the actual current A (I Act).
bibincjoy said:Please explain the below:
Resistance@95 =R@35 x (1+α*(95x(I/Io)²+20))/(1+75x α) at the actual current A (I Act).
Baluncore said:Is this a question about the resistance of metallic conductors at different temperatures ?
Please post a link to the “voltage drop calculation sheet for Busduct” you are using.
Baluncore said:We now have the definitions for most of the terms in the equation.
We do not know what the symbol Io refers to. Maybe it is the design rating current?
It seems that the 35 and 95 are probably conductor temperatures 35°C and 95°C.
You were unable to understand the equation given the “Voltage drop sheet”.
At PF we are only human, like you, we need more information or context from the manufacturers website.
Where did you get the “Voltage drop sheet” page from ?
If you cannot give us a link to the manufacturers website, then we can only guess and you will need to direct your question to the equipment supplier.
1 + a * ( 55 * ( I/Io )^2 + 20 )
R = Ro * --------------------------------
1 + a * ( 55 + 20 )
Wanted to know whether is there any standard equation like R@T2 = R@20(1+α@20(T2-20).
Resistance @ 95 from Resistance @ 35 refers to the change in resistance from 35 degrees Celsius to 95 degrees Celsius. It is a measure of how much the resistance of a material changes as the temperature increases.
Resistance @ 95 from Resistance @ 35 is calculated by taking the resistance at 95 degrees Celsius and subtracting the resistance at 35 degrees Celsius.
Resistance @ 95 from Resistance @ 35 is important because it can provide valuable information about the thermal properties of a material. It can also help determine the suitability of a material for use in different temperature conditions.
Temperature affects resistance because as the temperature increases, the atoms in a material vibrate more and this causes more collisions between electrons and atoms. This increases the resistance of the material.
Yes, Resistance @ 95 from Resistance @ 35 can be negative if the resistance at 35 degrees Celsius is higher than the resistance at 95 degrees Celsius. This indicates that the material has a negative temperature coefficient of resistance.