You better post a link where you got it from, if you want an intelligent reply.
Is it a some kind of high-energy physics research site reporting an anomaly?
OK it looks like LHC, Large Hadron Collider?
Date given in European time
4-12-2018
or 2018-12-4
that would be December 4th of 2018
Timestamp says 11:11:58
Don't know why they need the fire brigade
Don't know what the identification of sites for fire brigade mean in relation to the collider and its equipment.
LNC is part of CERN.
The Large Hadron Collider (LHC) is the world's largest and most powerful particle collider and the largest machine in the world. It was built by the European Organization for Nuclear Research (CERN) between 1998 and 2008 in collaboration with over 10,000 scientists and hundreds of universities and laboratories, as well as more than 100 countries.
I don't know this Vincent guy or have any reason to think he has inside knowledge. What do you think? How about commencing a dig to see if CERN is publishing open source info on a serious power anomaly that occured on December 4, 2018 causing a shutdown of a running a supercollider experiment that was capable of running in the TeV (tera electron-volt) range.
Maybe fire brigade data from that date from neighboring towns? I believe that collider is partly under France and partly under Switzerland?
Any europanons feel like digging local fire brigade call-outs on that date?