NV65 Wind speed Last Post 29 Oct 2014 01:34 AM by Ruchillrover. 1 Replies.
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stp_nwc

New Member
Posts:1

 19 May 2012 07:09 AM Could anybody can tell me please? that 1. Basic pressure velocity of french standard NV65 is determine by q = V^2/1.63 where q = velocity pressure (N/m^2) V = Basic wind speed (m/s) @ 10m above ground 2 How this code NV65 measure the wind speed? eg. 3s-gust, fastest mile, or 10min-avg, 10min hour Thank you
Ruchillrover

New Member
Posts:1

 29 Oct 2014 01:34 AM Hi This is a good question. Sorry at this stage I do not have an answer. |Did you work this out by some other route and can you share the answer now? What I had thought was that the "normal" figure was the mean hourly at 10m and the "extreme" figure was the 3 sec gust at 10m. But something is not adding up for me. When I compare the figures with the UK code BS6399 I see that Frances lowest zone cat 1 has a normal wind speed of 103kmh which = 28.6m/s which is only matched in the UK in the most extremely exposed North Western Isles of Scotland - this simply can not be true! If I find an answer I'll post again. Ruchillrover