gwillis33
Electrical
- Aug 18, 2015
- 9
Appendix B says to use both synoptic and downdraft for region III. How do you apply this? Does this mean do 2 calculations for every line and use the worst case for your design? I'd appreciated hearing any thoughts on this.
Downdraft always gives a larger value for SRF (see graph) so do you assume that will be the most conservative result and only do one calculation?
![URL]](https://res.cloudinary.com/engtips/image/fetch/w_800,c_lfill,q_auto,f_auto,g_faces:center/[URL unfurl="true"]http://ipowermation.com/temp/srf.gif[/URL])
Downdraft always gives a larger value for SRF (see graph) so do you assume that will be the most conservative result and only do one calculation?