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.
1847Post New Premier Interview Questions
How do you define sequence generated primary key in hibernate?
how you confirm the assay method?
What are the steps to load the noncumulative cube??
What does .net stand for?
A and V enter into a joint venture to sell a consignment of biscuits sharing profits and losses equally. A provides biscuits from stock Rs 10000. He pays expenses amounting to Rs 1000. V incurs further expenses on carriage Rs 1000. He receives cash for sales Rs 15000. He also takes over goods to the value of Rs 2000. The profit on joint venture is 7 (a) Rs.3000 (b) Rs.5000 (c) Rs.6000 (d) Rs.3500
What is the architecture of django?
Does your current employer use emr or ehr? : insurance health
What id difference between power and energy?
please tell me the name and url path for type-4 driver ?
WAP in Java to print the format A B A B C D E D E
What is the function of view buttons?
What does ce mean. You will see it on almost every chip(ic)?
What is code access security (cas)?
What is the need of etl tools?
Difference between CRM Discovery Service and CRM Metadataservice?