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Know what this worker is hanging
I can see the small print now: it’s a suspended dry powder fire extinguisher, with a small glass cap-shaped temperature sensor at the bottom; when this sensor breaks, dry powder is released to extinguish the fire. It works on the same principle as a wet water spray fire extinguishing system. The downside is that over time, the dry powder settles at the bottom and forms clumps, which may prevent it from being sprayed out.
Installing dry powder fire extinguishing systems as a form of renovation is another innovative approach in light of the national conditions; theoretically, it should certainly help to control fires. Since a dry powder type is used, it is likely to be intended to prevent fires from occurring while electric bicycles are being charged (such incidents have been frequent in recent times). So, how should this kind of facility be installed? Are there any relevant standards and requirements? By number of vehicles? By floor area? What are the requirements for installation? (The method of hanging it with wires as shown in the picture does indeed resemble hanging a lantern, but unfortunately this approach, which lacks proper fixation, is not advisable – anyone who has used a dry powder fire extinguisher knows this.) If relevant factors are not taken into account, then the configuration of such facilities can only be \"decorative red lanterns\"”
It is a common phenomenon that new technologies develop rapidly, while the formulation and updating of standards and regulations proceed more slowly, as is the case with new energy vehicles. A search shows that there is only one local standard from Jilin Province: DB22-T 2879-2018.