My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
1448Post New Premier Interview Questions
Can I use gmail with windows 10?
I want to convert vf page to a pdf. How to achieve it?
Is asp.net forms authentication supported?
What are Keyword and Data driven frameworks in Selenium RC
What are packages in go language?
Explain about the keyword must inherit?
What are the differences between throw and throws?
How do you remove duplicates from a list whilst preserving order?
Does pop3 delete email from server?
Is react faster than angular?
Can I upgrade to windows 10 from xp?
In what scenario, binary search can be used?
What is a workflow task? : salesforce admin
why accounting is important in business?
What is general insurance policy? What does it cover? : insurance sales
