I am involved in some research about subject. Quite frankly I was a little concerned as to the size of these guys relative to a severe ground fault, e.g. 65kA. I just received a letter fromthe Dept. of the Navy with reference to the effect. I'm told that they are pulling them off their ships...
I was wondering if anyone has had experience with application and ROI with these guys. The input I've received thus far is how did we ever get along without them! My application is shipboard.
Thanks
Can anyone help me with bus bar spacing for different kA bracing? I have a spread sheet with formulas but it seems way over kill. I thought that 21" between insulators was capable to withstand 65 kA but me table says it should 7" for single 1/4" x 4" bus!
Thanks,
I appreciate you folks response to my questions. I didn't get the answer so I must have ask it wrong. Here goes again:
Bus bar tables reflect imessity factors and degree rises in centigrade. Wonderful! Now I have to size bus bar (been doing it for years via IEEE table A27 but when evaluating...
I am confused as to why bus bar ampacity tables show a higher ampacity of bus sizes with a higher degree of temperaturs, i.e. 50 deg. C apposed to say 75 deg. C.
anybody know?
Thanks
