More or less what I expected. But lets keep some perspective here...
I am laughing at your use of the term "severe" to describe those balmy 7C conditions...but on the other hand, hearing about temps like 50C literally astonishes me. 50C sounds like a temperature being created in a lab experiment, not something that is being experienced outdoors.
Many jobsites where I have worked will limit or discontinue work once temps reach 90F (32C) and certainly none will discourage workers who take frequent and lengthy cool-down breaks. I specifically recall one instance when I and two others were installing controls on a paint-drying booth in a car plant. The work was being done in a small area directly above the booth; we were closely monitored by safety personnel. We were not allowed to remain in that area for more than 10 minutes at a time, with at least 20 minutes cool-down required before our next 10-minute "shift". One person at a time was allowed into the hot zone, and it was required that another worker always be observing from outside...not working on anything else, but actively watching the "hot" worker continuously.
The temperature was a blistering 100F...about 38C. Okay, your turn to laugh.![]()
100 F is hot, I would be taking shifts too! o-o