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 Post subject: NENS 09 Australian AF Calculation method
PostPosted: Mon May 17, 2021 9:25 am 

Joined: Tue Aug 18, 2020 3:14 pm
Posts: 6

Is Anyone out there familiar with the NENS 09 Australian AF Calculation method?

This method was published in the "ENA NENS 09-2014 National Guideline PPE Arc" Guideline that's used in Australia. (See equations in attached image)

They list the methodology and equations but I don't see a breakdown of the method limitations.

For example, in IEEE 1584 there is a disclaimer saying the applicable voltage, fault currents, etc that the method is valid for.

Based on the citings this method may have originated from the following document but I can't seem to find it anywhere online.

EESA Electrical Arcing Hazards - A paper by Dr. David Sweeting (Sweeting Consulting) and Professor Tony Stokes (Electrical Engineering University of Sydney) presented at the EESA Conference in Sydney on 12 August 2004;

If anyone can shed some light on this or point out the limitations of the method that would be appreciated!

I realize the method is older in comparison to IEEE 1584 but I'm interested to see how the assumptions of this method compare to the updated IEEE 1584 model.

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