What is the difference between a lightning early warning system and a meteorological lightning early warning system?

On February 24, 2022, after the Ministry of Emergency issued the "Basic Requirements for Lightning early Warning System of Large Oil and Gas Storage Base (Trial)", petrochemical enterprises have installed lightning early warning systems. What is the lightning early warning system? According to the basic definition in IEC62793-2020: A system containing a thunderstorm detector capable of monitoring lightning or impending lightning activity in the monitored area (MA) and capable of sending an effective lightning warning (warning) in relation to a lightening related event (LRE) or lightening related condition (LRC) to a surrounding area (SA) through the processed data.

What is the difference between a lightning early warning system and a meteorological lightning early warning system?

The meteorological department has carried out lightning forecast, but it serves the public. The traditional lightning warning system has the characteristics of long forecast period (more than 2 hours) and low accuracy, and cannot be refined to the location of the enterprise. For the enterprise users, it is impractical to stop production and lightning protection two hours in advance, and the conventional meteorological lightning warning can not meet the actual requirements of safety production.

The lightning early warning system can predict the lightning activity within tens of kilometers over the local area of the enterprise, and can continuously issue the yellow-orange-red level 3 lightning early warning 5-30 minutes before the lightning approach. The utility model not only enables the user to have enough time for lightning protection, but also scientifically and reasonably arranges the production time to enhance the enterprise's resistance to thunderstorms.