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.
1437Post New Premier Interview Questions
why Nacl solution called as brine solution?
What inheritance is and an example of when you might use it?
when you will synchronize a piece of your code? : Java thread
What header files do I need in order to define the standard library functions I use?
what are the different types of time management infotypes?
What is the purpose of the dd keylen parameter?
What is meant by CDOT in relation to the Communication in BSNL? Explain the term CDOT.
what is social transformation system? any site reference? How i get requirement gathering about for it? i wanna build website on this topic
What do you know NABARD?
Is drupal a programming language?
What is batch processing?
Explain state records. What is its purpose?
What is drupal used for?
Difference between lexical and bind varible.
What is the tallness trait of a pea plant moving separately from the color trait an example of?
