Some people want to know that amount of electricity which can pass through an electric conductor. This is important information when you are considering the right size of conductors or wires to use. When you use the wrong conductor for a specific flow of electricity this could result to overheating of wires or even fires.
Ampacity is the most important aspect of conductor sizing. This is the capacity of a wire or a conductor to allow electrical flow without being destroyed. There are two major factors that affect the ampacity of a conductor and these are the current flow and the heat capacity. We will learn more about this for us to determine the ampacity of our conductor.
When you are considering the value of the electric flow, you should consider the total amount of the fault current. This is because generally when a fault occurs, the current normally splits into two branches and each of these branches will carry half of the current. This will not give you the actual capacity of the conductor and it will no t give you accurate results to make a relevant decision for sizing. Therefore you must consider the total amount of the fault current which is your RMS current as well.
You have to use the maximum heat limit in accordance with the standards set up for each conductor, it is not practical and it is not accepted when you set up heat limits at the level of the melting point of the conductors. The maximum heat allowed for copper is 250C and the maximum heat allowed for buried conductors are 1000C.
There is a computer program available that comes in with CDEGS when it is delivered. This program can which can perform sizing computations when you have determined the fault current to use and the maximum heat limit of your preferred conductor.
You can access this program when you open the main program of the CDEGS. You will be asked to select tools for ampacity. After selecting this, self explanatory procedures will be presented to you.
You have to fill in the necessary information about the Symmetrical RMS current magnitude, and the maximum allowable temperature which you have already estimated. After indicating setting these considerations the next thing that you need to do is to choose the conductor which you prefer. After that you just need to click on the compute and the program will give you the minimum conductor size possible for given the fault current and the heat limit that you set up. You can click on the report to get more information about the ampacity of the conductor that you have chosen.
Ampacity is the most important aspect of conductor sizing. This is the capacity of a wire or a conductor to allow electrical flow without being destroyed. There are two major factors that affect the ampacity of a conductor and these are the current flow and the heat capacity. We will learn more about this for us to determine the ampacity of our conductor.
When you are considering the value of the electric flow, you should consider the total amount of the fault current. This is because generally when a fault occurs, the current normally splits into two branches and each of these branches will carry half of the current. This will not give you the actual capacity of the conductor and it will no t give you accurate results to make a relevant decision for sizing. Therefore you must consider the total amount of the fault current which is your RMS current as well.
You have to use the maximum heat limit in accordance with the standards set up for each conductor, it is not practical and it is not accepted when you set up heat limits at the level of the melting point of the conductors. The maximum heat allowed for copper is 250C and the maximum heat allowed for buried conductors are 1000C.
There is a computer program available that comes in with CDEGS when it is delivered. This program can which can perform sizing computations when you have determined the fault current to use and the maximum heat limit of your preferred conductor.
You can access this program when you open the main program of the CDEGS. You will be asked to select tools for ampacity. After selecting this, self explanatory procedures will be presented to you.
You have to fill in the necessary information about the Symmetrical RMS current magnitude, and the maximum allowable temperature which you have already estimated. After indicating setting these considerations the next thing that you need to do is to choose the conductor which you prefer. After that you just need to click on the compute and the program will give you the minimum conductor size possible for given the fault current and the heat limit that you set up. You can click on the report to get more information about the ampacity of the conductor that you have chosen.
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