On 16/01/2024 at 10:50:13 PM, Saku Ytti <s...@ytti.fi> wrote: > On Tue, 16 Jan 2024 at 11:00, William Herrin <b...@herrin.us> wrote: > > You have a computer room humidified to 40% and you inject cold air > > below the dew point. The surfaces in the room will get wet. > > > I think humidity and condensation is well understood and indeed > documented but by NEBS and vendors as verboten. > > I am more interested in temperature changes when not condensating and > causing water damage. Like we could theorise, some soldering will > expand/contract too fast, breaking or various other types of scenarios > one might guess without context, and indeed electronics often have to > experience large temperature gradients and appear to survive. > When you turn these things on, various parts rapidly heat from ambient > to 80-90c. So I have some doubts if this is actually a problem you > need to consider, in absence of condensation. >
Here’s some manufacturer specs: https://www.dell.com/support/manuals/en-nz/poweredge-r6515/per6515_ts_pub/environmental-specifications?guid=guid-debd273c-0dc8-40d8-abbc-be059a0ce59c&lang=en-us 3rd section, “Maximum temperature gradient”. >From memory, the management cards alarm when the gradient is exceeded, too. -- Nathan Ward
