Calculation of Short Circuit for Bus bar
Condition: From Figure as below, find the short circuit current of bus bar with reference Table 1 as attached and Force stress on Table 2
Determine the length of bus bar support to another support having equal 56 Centimeter and the distance from center to center of bus bar are 12 centimeter as figure.
Calculation: From Table 1 at first column shall be select bus bar size as mm.
Where 12 and
From Cross the row and column, we get
Rearrange,
From Table 2, we get (factor for stress on the support)
Which
Find the greatest stress force that will be consider at the central one of bus bar (see Fig.2)
Rearrange,
Converse unit,
And
We get,
Attached Document:
- Table bus bar (DIN 43671)
- Table 1 and Table 2 For calculation of short circuit (kA) and Electrodynamic force (Fs)
- Specification of bus bar support