In the second article in the series, Roy Hughes continues his masterclass on the use of software for network design.
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Figure 1: The design data
Other, Size 0 kbFigure 2: Voltage drop is calculated using the figures shown
Other, Size 0 kbFigure 3: The current level corresponding to a five second disconnection can be read off from the graph
Other, Size 0 kbFigure 4: Calculating the circuit earth loop impedance
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Source
Electrical and Mechanical Contractor
Postscript
Roy Hughes is senior support engineer with Amtech Computer Systems.
