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ekstra   ara
Ex twidget
 Post subject: Current Limiting Equations for Fuses
PostPosted: Thu Feb 26, 2009 2:10 pm 

Joined: Mon Jan 26, 2009 5:00 pm
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Location: Midwest
The data for these equations was obtained using 600V arcs on 600V fuses. Presumably, this data is conservative for 480V systems. Would it also be appropriate to apply these equations to fuses installed in 208V systems?

Thank you
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Jim Phillips (brainfiller)
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PostPosted: Mon Mar 02, 2009 6:59 am 
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Ex twidget wrote:
The data for these equations was obtained using 600V arcs on 600V fuses. Presumably, this data is conservative for 480V systems. Would it also be appropriate to apply these equations to fuses installed in 208V systems?

Thank you


I'm not sure enough is known to be able to draw that conclusion. It might be best to contact one of the fuse manufacturers to get their input.

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Jim Phillips, P.E.
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